division 30 portland cement concrete - doyon · pdf fileaashto m6 ..... specification for fine...

JOINT BASE ELMENDORF-RICHARDSON STANDARD CONSTRUCTION SPECIFICATIONS

AND DETAILS

DIVISION 30 PORTLAND CEMENT

CONCRETE 2015

REV.001

714 FOURTH AVENUE, SUITE 100 FAIRBANKS, ALASKA

PO Box 74040 FAIRBANKS, AK 99707

(907) 455-1500

www.doyonutilities.com

JBER STANDARD CONSTRUCTION SPECIFICATIONS AND DETAILS DIVISION 30 - PORTLAND CEMENT CONCRETE

2015 Rev.001 i Doyon Utilities, LLC

TABLE OF CONTENTS

SECTION 30.01 - GENERAL .......................................................................................... 1 Article 30.01.1 - Scope of Work ................................................................................................. 1 Article 30.01.2 - Safety .............................................................................................................. 1 Article 30.01.3 - Applicable Standards ...................................................................................... 1 Article 30.01.4 - Contaminated Material .................................................................................... 2 Article 30.01.5 - JBER Access Privileges for Contractor Personnel .......................................... 2 Article 30.01.6 - Inspection, Notices, and Official Communications .......................................... 3 Article 30.01.7 - Utility Locations and Dig Clearance Permit Requirements .............................. 3 Article 30.01.8 - Hot Work Permit Requirements ....................................................................... 3 Article 30.01.9 - Fire Hydrant Use Permit Requirements .......................................................... 4 Article 30.01.10 - Submittals...................................................................................................... 4 Article 30.01.11 - Permanent Materials Furnished by Doyon Utilities and by Contractor .......... 4 Article 30.01.12 - Other Division Requirements ........................................................................ 5 Article 30.01.13 - Site Housekeeping and Clean-Up ................................................................. 6

SECTION 30.02 – BATCHING, DELIVERY, AND TESTING ......................................... 7 Article 30.02.1 - General ........................................................................................................... 7 Article 30.02.2 - Material ........................................................................................................... 7 Article 30.02.3 - Construction .................................................................................................. 10

SECTION 30.03 - CURB AND GUTTER, CURB CUTS, VALLEY GUTTER, SIDEWALK, CURB RAMPS, AND SIMILAR STRUCTURES ...... 13

Article 30.03.1 - General ......................................................................................................... 13 Article 30.03.2 - Material ......................................................................................................... 13 Article 30.03.3 - Construction .................................................................................................. 13

SECTION 30.04 - BUILDING STRUCTURES, RETAINING WALLS, AND SIMILAR STRUCTURES .............................................................. 20

Article 30.04.1 - General ......................................................................................................... 20 Article 30.04.2 - Material ......................................................................................................... 20 Article 30.04.3 - Construction .................................................................................................. 21

LIST OF PORTLAND CEMENT CONCRETE STANDARD DETAILS ......................... 29 Detail # Description 30.03-1 JBER Standard Curb and Gutter Cross-Sections 30.03-2 JBER Curb and Gutter Cross-Sections for Curb Ramps 30.03-3 JBER Curb and Gutter Termination Transition 30.03-4 JBER Median Curb Nose 30.03-5 JBER Driveway Curb Cut and Sidewalk Ramps

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2015 Rev.001 ii Doyon Utilities, LLC

30.03-6 JBER Curb Returns and Valley Gutter 30.03-7 JBER Curb Returns, Valley Gutter, and ADA Sidewalk Ramps & Landings 30.03-8 JBER Perpendicular Curb Ramp 30.03-9 JBER Parallel Curb Ramps & Landing 30.03-10 JBER Unidirectional Curb Ramp & Landing 30.03-11 JBER Minimum Pedestrian & Wheelchair Access Routes 30.03-12 JBER Pedestrian & Wheelchair Access to Traffic Signal Push Buttons 30.04-1 JBER 2’ to 3’ Curb Type Retaining Wall 30.04-2 JBER 6” to 2’ Sidewalk Type Retaining Wall 30.04-3 JBER 2’ to 4’-4” Sidewalk Type Retaining Wall

CHANGE LOG – Revisions between 2014 Standard and 2015 Rev.001 Standard

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2015 Rev.001 1 Doyon Utilities, LLC

SECTION 30.01 - GENERAL

Article 30.01.1 - Scope of Work The Work covered by these Specifications consists of providing all labor, supervision, equipment, supplies, material, transportation, handling and storage, and performing all operations necessary for Portland cement concrete work as necessary to complete new construction, modification, repair, and/or surface restoration for water distribution and wastewater collection facilities operated by Doyon Utilities, LLC, on Joint Base Elmendorf Richardson, hereinafter referred to as JBER.

All Division 30 work shall be in accordance with the Plans, Special Provisions, Standard Details, and all applicable JBER Specifications. In the event of differences between the requirements contained in these various documents and specifications, the most stringent requirements, as determined by Doyon Utilities’ Authorized Representative, shall govern.

Much of the content of this JBER Division 30 is taken from the 2009 Municipality of Anchorage Standard Specifications (MASS), but this JBER Division 30 also includes requirements not found in the 2009 MASS.

Article 30.01.2 - Safety The Contractor is solely responsible for all construction-related safety and safety compliance, including, but not limited to: worker and jobsite safety; safety of Doyon Utilities employees and agents; safety of other JBER personnel and property; safety of the general public; safety of military operations; safety of wildlife and the environment; and, safety of the water distribution system, the wastewater collection system, and other utility safety.

Article 30.01.3 - Applicable Standards The latest revision of the following standards of the American Concrete Institute (ACI), American Society for Testing and Materials (ASTM), American Society of State Highway and Transportation Officials (AASHTO), American Welding Society (AWS), and Concrete Reinforcing Steel Institute (CRSI) are hereby made a part of these Specifications:

ACI ...................... Manual of Concrete Practice ACI 117 ............... Specification for Tolerances for Concrete Construction and Materials ACI 301 ............... Specifications for Structural Concrete For Buildings ACI 302 ............... Recommended Practice for Concrete Floor and Slab Construction ACI 306 ............... Guide to Cold Weather Concreting AASHTO M6 ....... Specification for Fine Aggregate for Portland Cement Concrete AASHTO M32 ..... Specification for Cold Drawn Steel Wire for Concrete Reinforcement Cement AASHTO M80 ..... Specification for Coarse Aggregate for Portland Cement Concrete AASHTO M85 ..... Specification for Portland Cement ASTM A185 ......... Specification for Welded Steel Wire Fabric for Concrete ASTM A615 ......... Standard Specification for Deformed and Plain Carbon-Steel Bars for

Concrete Reinforcement ASTM C31 .......... Method of Making and Curing Concrete Compression and Flexure Test

Specimens in the Field ASTM C33 .......... Specification for Concrete Aggregates



ASTM C39 .......... Test for Compressive Strength of Molded Concrete Cylinders ASTM C40 .......... Test for Organic Impurities in Sands for Concrete ASTM C42 .......... Method of Securing, Preparing and Testing Specimens from Hardened

Concrete for Compression and Flexure Strengths ASTM C94 .......... Specification for Ready-Mix Concrete ASTM C143 ........ Test for Slump of Hydraulic-Cement Concrete ASTM C150 ........ Specification for Portland Cement ASTM C156 ........ Test for Water Retention Efficiency of Liquid Membrane-Forming Compounds

and Impermeable Sheet Materials for Curing Concrete ASTM C171 ........ Specification for Waterproof Paper for Curing Concrete ASTM C172 ........ Sampling Fresh Concrete ASTM C192 ........ Method of Making and Curing Concrete Compression and Flexure Test

Specimens in the Laboratory ASTM C226 ........ Specification for Air-Entraining Additions for Use in the Manufacture of Air-

Entraining Portland Cement ASTM C231 ........ Test for Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C260 ........ Specification for Air-Entraining Admixture for Concrete ASTM C309 ........ Specification for Liquid Membrane-Forming Compounds for Curing Concrete ASTM C494 ........ Specifications for Chemical Admixtures for Concrete ASTM C881 ........ Specification for Epoxy-Resin-Base Bonding Systems for Concrete ASTM C920 ........ Specification for Elastomeric Joint Sealants ASTM D1751 ...... Specification for Preformed Expansion Joint Filler for Concrete Paving and Structural

Construction (Non-extruding and Resilient Bituminous Types) AWS D1.4 ........... Structural Welding Code – Reinforcing Steel CRSI ................... Manual of Standard Practice

Article 30.01.4 - Contaminated Material Unless otherwise noted in the Contract Documents, neither JBER nor Doyon Utilities LLC is aware of any contaminated material within the project limits. If such material is encountered, the Contractor shall notify Doyon Utilities’ Authorized Representative immediately for direction. Unless the contamination was caused by Contractor’s operations, discovery of contaminated material will be treated as a changed condition.

Article 30.01.5 - JBER Access Privileges for Contractor Personnel The Contractor shall provide Doyon Utilities LLC with a list of personnel, including Subcontractor personnel, requiring regular access to JBER, as well as .required personnel identification documents as required by JBER military base security personnel, all at least 7 calendar days prior to the date that access is required. JBER access privileges for Contractor personnel are contingent on passing of background checks to the satisfaction of JBER military base security personnel.

JBER access privileges for Contractor and Subcontractor personnel are revocable at the discretion of JBER military base security personnel. Denial or revocation of JBER access privileges by JBER military base security personnel for Contractor or Subcontractor personnel shall not be grounds for extra Contractor or Subcontractor compensation.



Article 30.01.6 - Inspection, Notices, and Official Communications All work activities covered under this Division, including but not limited to traffic maintenance, concrete batching, construction, and punch list work, are subject to inspection and acceptance by Doyon Utilities LLC. Work completed without inspection by Doyon Utilities’ Authorized Representative shall be subject to rejection.

The Contractor shall schedule construction work specifically requiring inspection, punch list work, and similar activities to occur on non-holiday weekdays during normal working hours of 7:30 AM to 4:00 PM to facilitate inspection by Doyon Utilities’ Authorized Representative.

Written notice of traffic lane closures shall be provided to Doyon Utilities LLC, the JBER Fire Department, and the JBER Police Department by the Contractor at least 14 calendar days in advance.

Written notice of traffic maintenance (excluding lane closure work), concrete batching, construction, punch list work, and similar activities requiring inspection shall be provided to Doyon Utilities LLC by the Contractor at least 5 calendar days prior to beginning any of these operations.

The Contractor shall notify Doyon Utilities’ Authorized Representative again in person or by e-mail one calendar day before starting any of the work listed above.

Failure by the Contractor to provide the required notice shall be grounds for issuance of a stop-work order and/or complete rejection of the work.

To be considered official and binding, all communication from and to Doyon Utilities LLC shall be in writing.

Article 30.01.7 - Utility Locations and Dig Clearance Permit Requirements The Contractor shall place a telephone, fax, or on-line locate request with Alaska Digline Inc. (Anchorage telephone - 278-3121 or 811, statewide telephone - 1-800-478-3121, statewide fax – 1-907-278-0696, on-line – http://www.akonecall.com). Documentation of the Alaska Digline request shall be provided to Doyon Utilities’ Authorized Representative. The Contractor shall coordinate with utility companies’ locator personnel to locate all existing utilities before digging.

In addition to obtaining utility locations through Alaska Digline Inc., the Contractor shall obtain a Dig Clearance Permit from JBER CES (673 ABW Form 3 – BCE Work Clearance Request), and provide a copy of the fully executed Dig Clearance Permit to Doyon Utilities’ Authorized Representative. A minimum of 14 calendar days shall be allowed by the Contractor for complete processing of a Dig Clearance Permit. The Contractor shall comply with all requirements of the fully executed Dig Clearance Permit.

Article 30.01.8 - Hot Work Permit Requirements For any activity producing open flames, or heat or sparks sufficient to cause combustion, the Contractor obtain a hot work permit signed by the JBER Fire Department, and provide a copy of the fully executed hot work permit to Doyon Utilities’ Authorized Representative. A minimum of 14 calendar days shall be allowed by the Contractor for complete processing of a hot work permit. The Contractor shall comply with all requirements of the fully executed hot work permit.



Article 30.01.9 - Fire Hydrant Use Permit Requirements Prior to use of any JBER fire hydrant for any reason other than emergency usage, the Contractor shall obtain a fire hydrant use permit from Doyon Utilities. Issuance of fire hydrant use permits is at the discretion of Doyon Utilities. A minimum of 3 working days shall be allowed by the Contractor for complete processing of a fire hydrant use permit. The Contractor shall comply with all requirements of the fully executed fire hydrant use permit.

Article 30.01.10 - Submittals The Contractor shall provide paper submittals or electronic submittals, at the option of Doyon Utilities’ Authorized Representative, for review and acceptance by Doyon Utilities. Duplicate paper submittals shall be supplied in the quantities requested by Doyon Utilities’ Authorized Representative. Submittals shall clearly document compliance with Contract requirements, as well as any deviations from Contract requirements, all to the satisfaction of Doyon Utilities’ Authorized Representative. Any materials ordered and/or work done in advance of written acceptance of submittals by Doyon Utilities’ Authorized Representative is subject to rejection.

Submittals for Doyon Utilities review and acceptance are required for the following items.

1. Documentation of Alaska Digline utility locate requests.

2. Fully executed Dig Clearance Permit(s).

3. Fully executed hot work permit(s).

4. Submittals for all permanent materials.

5. Cold weather concrete plans.

6. Curb ramp drawings.

7. Work Site Traffic Supervisor certification and resume.

8. Traffic Control Plans.

9. Red-lined drawings.

Permanent material submittals shall be provided to Doyon Utilities’ Authorized Representative at least 30 calendar days prior to ordering of materials. Other submittals listed above, except red-lined drawings, shall be provided to Doyon Utilities’ Authorized Representative at least 14 calendar days prior to the activity covered by the submittal. Completed red-lined drawings shall be submitted to Doyon Utilities’ Authorized Representative within 14 calendar days of substantial completion.

Doyon Utilities’ Authorized Representative reserves the right to request additional submittals for other Contractor procedures and personnel qualifications.

Article 30.01.11 - Permanent Materials Furnished by Doyon Utilities and by Contractor Doyon Utilities may furnish some permanent materials on some projects. When Doyon Utilities does furnish permanent materials, a list of these Doyon Utilities’-provided permanent materials, and locations where these Doyon Utilities’-provided materials shall be received by the Contractor, will be provided in the Contract Documents. The Contractor shall perform a complete take-off of all permanent materials required for the project. The Contractor shall furnish any and all permanent materials not supplied by Doyon Utilities, in order to complete the



Project in accordance with the Plans, Standard Details, Special Provisions, and these Specifications.

The Contractor shall be responsible for receiving, inspecting, and inventorying Doyon Utilities’-provided materials at locations specified in the Contract Documents, notifying Doyon Utilities Authorized Representative of damage, shortages, etc., loading as required, delivery to the jobsite, and unloading at the jobsite. Materials damaged during Contractor-provided loading, transportation to the jobsite, and/or unloading at the jobsite shall be replaced at Contractor expense.

Any surplus Doyon Utilities’-provided materials not used on a project shall remain the property of Doyon Utilities, and shall be delivered by the Contractor to the Doyon Utilities storage yard and carefully off-loaded and stored on Contractor-provided wooden pallets or other suitable dunnage.

Article 30.01.12 - Other Division Requirements Except as specifically stated otherwise in the various Sections of this Division 30, the following other Divisions and Sections of these Standard Specifications are incorporated by reference into all Sections of Division 30:

A. Storm Water Pollution Prevention, Clearing and Grubbing, Concrete and Asphalt Demolition, and Earthwork

B. The Contractor shall perform storm water pollution prevention, clearing and grubbing, concrete and asphalt demolition, earthwork, and related work in accordance with applicable sections of Division 20 - Earthwork.

C. Wastewater Collection Facility Construction

D. The Contractor shall construct wastewater collection facilities in accordance with applicable sections of Division 50 - Wastewater Collection Systems.

E. Water Distribution Facility Construction

F. The Contractor shall construct water distribution facilities in accordance with applicable sections of Division 60 - Water Distribution Systems.

G. Surface Restoration

H. Unless shown otherwise on the Plans and/or Standard Details, specified otherwise in the Special Provisions, or directed otherwise by Doyon Utilities’ Authorized Representative, the Contractor shall provide the following materials as required for surface restoration:

1. For restoration of concrete pavement, sidewalks, curb and gutter, etc. – Class AA-3 Portland cement concrete in accordance with this Division 30, with concrete dimensions to match existing.

2. For restoration of asphalt pavement - Class E asphalt pavement, 2 inches minimum compacted thickness, in accordance with Division 40 - Asphalt Surfacing, over a 2 inches minimum compacted base of leveling course in accordance with Division 20 - Earthwork.

3. For restoration of gravel-surfaced roads, road shoulders, parking lots, etc. - Leveling course gravel surfacing, 2 inches minimum compacted thickness, in accordance with Division 20 - Earthwork.



4. For restoration of vegetated surfaces or bare dirt surfaces not scheduled for other surface restoration - 4 inches minimum rolled thickness of topsoil and hydro-seeding with Schedule A seeding mix (for mowed areas) or Schedule D seeding mix (for unmowed areas) in accordance with Division 75 - Seeding, Landscaping, and Revegetation.

I. Construction Surveying and Red-Lined Drawings

The Contractor shall provide construction surveying and maintain red-lined drawings in accordance with Division 65 - JBER Construction Surveys. The red-lined drawings shall be up-dated weekly by the Contractor to the satisfaction of Doyon Utilities’ Authorized Representative. Completed red-lined drawings shall be submitted within 14 calendar days of substantial completion, for review and acceptance by Doyon Utilities’ Authorized Representative.

J. Traffic Maintenance

The Contractor is solely responsible to provide all traffic maintenance for vehicular, non-motorized, and pedestrian traffic. All traffic maintenance shall be in accordance with the Division 70 - Miscellaneous Construction, and the Manual of Uniform Traffic Control Devices, latest edition adopted by State of Alaska, and current State amendments. For any operations involving disruption of normal traffic flow, the Contractor shall provide Traffic Control Plans for review and acceptance by Doyon Utilities’ Authorized Representative. Traffic Control Plans shall be provided at least 14 calendar days prior to beginning any operations involving disruption of normal traffic flow. Acceptance of Traffic Control Plans by Doyon Utilities’ Authorized Representative is required prior to any operations involving disruption of normal traffic flow.

Article 30.01.13 - Site Housekeeping and Clean-Up Littering is strictly prohibited.

The Contractor shall clean up all construction debris as soon as possible after it is generated and store it properly in suitable containers, all to the satisfaction of Doyon Utilities’ Authorized Representative. Trash shall be disposed of weekly or more often if directed by Doyon Utilities’ Authorized Representative.

The entire project site shall be cleaned up of all debris and litter at the end of the project and all debris and litter shall be properly disposed of, all to the satisfaction of Doyon Utilities’ Authorized Representative.



SECTION 30.02 - BATCHING, DELIVERY, AND TESTING

Article 30.02.1 - General The work covered under this Section includes Portland cement concrete batching, delivery to the jobsite, and testing. These requirements apply to all concrete pours.

Refer to Section 30.01 – General for additional general requirements.

Article 30.02.2 - Material A. Portland Cement

The cement shall be of a recognized standard brand of Type I/II or Type III Portland cement conforming to the requirements of ASTM C150 or AASHTO M85. When no type cement is specified, then the requirements of Type I cement shall govern.

B. Aggregates

Aggregates for Portland cement concrete shall be well graded, clean, hard gravel, and coarse sand, non-frost susceptible material, and free of deleterious (organic) matter, and coatings of silt or clay to the satisfaction of Doyon Utilities’ Authorized Representative. The gradations shall be determined by standard laboratory sieves with square openings. Material retained on the No. 4 sieve or coarser sieves shall be classified as coarse aggregate, which shall conform to the requirements of AASHTO M80 and have the following limits of gradation:

Coarse Aggregate for Portland Cement Concrete AASHTO No. 67 (¾” to #4) AASHTO No. 4 (1 ½” to ¾”) U.S. Standard Cumulative % Cumulative % Sieve Size Passing By Weight Passing By Weight 2” .......................................... -----.............................................. 100 1-1/2” ....................................... -----.......................................... 90 – 100 1” ..........................................100........................................... 20 – 55 3/4” ....................................90 – 100........................................ 0 – 15 1/2” ........................................ -----.............................................. ----- 3/8” .....................................20 – 55.......................................... 0 – 5 #4 ........................................0 – 10............................................ ----- #8 .........................................0 – 5............................................. -----



All material passing the No. 4 sieve shall be classified as fine aggregate and shall conform to the requirements of AASHTO M6 and have the following gradation:

Fine Aggregate for Portland Cement Concrete U.S. Standard Cumulative% Sieve Size Passing By Weight 3/8” ........................................ 100 #4 ..................................... 95 – 100 #8 ..................................... 80 – 100 #16 ..................................... 50 – 85 #30 ..................................... 25 – 60 #50 ..................................... 10 – 30 #100 ..................................... 2 – 10

Aggregates shall consist of washed sand and gravel. Fine and coarse aggregates shall be regarded as separate ingredients. Aggregates for normal weight concrete shall conform to the requirements of AASHTO M6 and AASHTO M80.

The maximum size of coarse aggregates shall not exceed 1-1/2 inches or 1/5 of the narrowest dimension between the forms nor 3/4 of the clear spacing between reinforcing bars nor 1/3 of the depth of slabs. The combined aggregates, coarse and fine, shall be of such composition of sizes that when separated on the No. 4 standard sieve, the weight passing shall not be less than 30% or greater than 50% of the total weight.

The volume removed by sedimentation shall not exceed 3%. Proportioning of the coarse and fine aggregate shall be obtained by weight. The weighing equipment shall be accurate within 1% of the net weight of the batch and shall permit adjustment for variations in the water content of the aggregate.

C. Water

Water used for the mixing of concrete shall be potable, clean, free of oil or acid, and shall not contain salt, alkali, or organic matter.

D. Air-Entrainment

Air-entrainment agent shall be used in all concrete. Entrainment shall be achieved by the addition of an approved air-entraining mixture to the concrete mix. Air-entrainment shall conform to ASTM C226.



E. Concrete Classes

The minimum mix requirement for classes of concrete shall be as set forth below, unless otherwise specified in the Contract Documents.

Class of Concrete

C-6 B-3 B-6 A-3 A-6 AA-3 AA-6 Minimum Cement Content (Sacks per Cubic Yard) 4.5 5.0 5.0 5.5 5.5 6.0 6.0

Minimum Water Cement Ratio (Gallons per Sack) 6.5 6.5 6.5 6.5 6.5 5.75 5.5

Minimum to Maximum Slump (Inches) 1-5 2-4 1-3.5 2-4 1-3.5 2-4 1-2

Minimum to Maximum Entrained Air (Percentage) 3-6 4-7 3-6 4-7 3-6 4-7 3-6

Coarse Aggregate (AASHTO Gradation)

No. 4 and

No. 67 No. 67

No. 4 and

No. 67 No. 67

No. 4 and

No. 67 No. 67

No. 4 and

No. 67

Fine Aggregate Per AASHTO M6 Minimum Design Strength fc (PSI) 2000 2500 2500 3000 3000 3500 3500

Minimum design strength for concrete with Type I/II cement shall be achieved in 28 days. Minimum design strength for concrete with Type III cement shall be achieved in 7 days.

Doyon Utilities’ Authorized Representative may require up to an additional one-half sack of Portland cement per cubic yard of concrete over the design specification.

Water shall not be used to increase slump beyond the values shown in the table above. If additional slump is necessary, a plasticizing agent may be used subject to acceptance of Doyon Utilities’ Authorized Representative.

The coarse aggregate for Classes C-6, B-6, A-6, and AA-6 concrete shall be furnished in two separate sizes.

Alternate mix designs will be considered upon submitting to Doyon Utilities’ Authorized Representative the following information:

1. Class of concrete for which the substitution is intended.

2. Design strength.

3. Air content.

4. Slump.

5. Aggregate gradation and maximum size.

6. Maximum water/cement ratio.

7. Minimum cement content.

8. List of admixtures, strength over-design, and other special features.



9. Fine aggregate weight/percent moisture of fine aggregate.

10. Intermediate aggregate weight and intermediate aggregate percent moisture.

11. Coarse aggregate weight and coarse aggregate percent moisture.

12. Weight of cement.

13. Weight of water.

14. Unit weight.

Article 30.02.3 - Construction A. Acceptance of Subgrade, Forms, and Reinforcing

No concrete shall be batched until the subgrade, forms, reinforcement, embedments, and other pour details have been inspected and accepted by Doyon Utilities’ Authorized Representative.

B. Weather Limitations

Placement of Portland cement concrete is subject to the following requirements:

1. Salt, chemicals, or other material shall not be mixed with the concrete to prevent freezing.

2. Placement of concrete shall be prohibited whenever ambient air temperature is 40° Fahrenheit or lower, whenever there is standing water, snow, or ice on the subgrade or in the forms, the subgrade is frozen or soft due to saturation, or rain is threatening.

For placement of concrete at ambient air temperatures of less than 40° Fahrenheit or where the foundation material is frozen, a written plan shall be submitted by the Contractor to Doyon Utilities’ Authorized Representative outlining a procedure for maintaining the placed concrete temperature of at least 50° Fahrenheit for 72 hours where Type III cement has been used or for 120 hours where Type I/II cement has been used. When the temperature is reduced, the drop in temperature must be gradual and shall not exceed 15° Fahrenheit in the first 24 hours.

C. Concrete Batching and Mixing

Portland cement concrete may be batched and mixed at a central mixing plant or in transit mixers. All mixing equipment and operations shall conform to the requirements of ASTM C94. All concrete shall be delivered to the work site thoroughly mixed to a uniform color and show uniform distribution of aggregates and cement throughout the mixture.

Batching of fractional sacks of cement will not be permitted unless the cement is weighed for each batch. Cement reclaimed from cleaning bags or leaking containers shall not be used.

Water added shall be measured by an approved calibrated device capable of metering within 1% of the total amount of water to be used for each batch.

Ready-mixed concrete shall conform to the requirements of ASTM C94. For each batch of concrete, and before unloading at the site, the Contractor shall furnish to Doyon



Utilities’ Authorized Representative with a delivery ticket from the ready-mix batch plan imprinted with the following information:

1. Name of ready-mix batch plant.

2. Serial number of ticket.

3. Date and truck number.

4. Name of Contractor.

5. Project name and location.

6. Specific class of concrete in conformance with these Specifications.

7. Amount of concrete in cubic yards.

8. Time loaded or first mixing of cement and aggregate.

9. Type of cement.

10. Admixtures and amount of same.

11. Slump requested by the Contractor and recorded in inches.

12. Percentage of entrained air requested by the Contractor.

13. Fine aggregate weight and percent moisture.

14. Intermediate aggregate weight and percent moisture.

15. Coarse aggregate weight and coarse percent moisture.

16. Weight of cement.

17. Weight of water.

18. Unit weight of concrete.

D. Concrete Delivery to Project

Concrete mix shall be delivered to the project in standard transit-mix trucks acceptable to Doyon Utilities’ Authorized Representative. The use of non-agitating equipment for transporting concrete shall not be permitted.

E. Sampling and Testing

The following concrete testing and sampling shall be performed by Doyon Utilities’ Authorized Representative:

1. Slump tests shall be in accordance with ASTM C143.

2. Air entrainment tests shall be in accordance with ASTM C231.

3. Concrete sampling and concrete cylinder preparation for compressive strength testing shall be in accordance with ASTM C31 and C172.

4. Concrete cylinder handling and testing shall be in accordance with ASTM C39 and C42.

Test samples shall not be taken at the beginning or end of discharge.

Concrete failing slump and/or air tests shall be rejected and disposed of at Contractor expense.



If any test cylinder should fail to meet compressive strength requirements, all concrete placed from the batch represented by the cylinder shall be removed and replaced at Contractor expense.

F. Concrete Unloading at Project

Concrete shall be delivered to the project site, discharged from the truck completely and in the forms ready for vibration within 90 minutes after introduction of the cement to the aggregates for ambient temperatures less than 70 Fahrenheit. At the discretion of Doyon Utilities’ Authorized Representative, the above period may be extended one minute for every degree of temperature at which the concrete is delivered below 70 Fahrenheit up to a maximum total time of 2 hours.

In hot weather (ambient temperatures of 70 Fahrenheit or higher), or under other conditions contributing to quick setting of the concrete, a discharge time of less than 90 minutes may be required by Doyon Utilities’ Authorized Representative.

Any concrete not discharged at the end of the respective time period shall be rejected.

The discharge of hardened concrete with any batch will be sufficient grounds for the rejection of the entire batch.

The addition of water to the mix at the job site will not be permitted except with the approval of Doyon Utilities’ Authorized Representative. Any additional water that is added shall be documented and recorded on the delivery ticket by a representative of the supplier.

G. Wash-Out of Transit-Mix Trucks

The mixing drums of transit-mix trucks shall be thoroughly washed after discharging each load to prevent the accumulation of adherent layers of concrete.

Wash water and concrete debris from transit-mix truck wash-down shall be properly disposed of in accordance with Division 20 - Earthwork, Section 20.02 - Storm Water Pollution Prevention.



SECTION 30.03 - CURB AND GUTTER, CURB CUTS, VALLEY GUTTER, SIDEWALK, CURB RAMPS, AND SIMILAR STRUCTURES

Article 30.03.1 - General The work covered under this Section consists of the construction of curbs and gutters, curb cuts, valley gutters, sidewalks, curb ramps, miscellaneous median shapes, parking stops, and similar structures.

Refer to Standard Details 30.03-1 through 30.03-12 for additional information on construction of various Portland cement concrete curb, gutter, and sidewalk structures.


Article 30.03.2 - Material A. Concrete and Related Materials

Concrete and related materials shall be in accordance with Section 30.02 – Batching, Delivery, and Testing. Unless shown otherwise on the Plans or Standard Details, concrete shall be Class A-3.

B. Membrane Curing Compound

Membrane curing compound shall conform to the requirements of ASTM C309, applied in strict accordance with manufacturer’s recommendations.

C. Expansion Joint Filler

Pre-molded joint filler for use in expansion joints shall be 1/2 inch thick and shall conform to the requirements of ASTM D1751.

D. Polyurethane Expansion Joint Sealant

Polyurethane expansion joint sealant shall conform to the requirements of ASTM C920, “Sikaflex – 1c SL”, or Doyon Utilities’ Authorized Representative accepted equal.

E. Detectable Warning Panels for Curb Ramps

Detectable warning panels shall have truncated domed surfaces 24 inches in length for the width of the ramp. The truncated domes shall have a height of 0.2 inch, a diameter of 0.9 inch, a center-to-center spacing of 1.6 inches minimum and 2.4 inches maximum, and a base-to-base spacing of 0.65 inch measured between the most adjacent domes. Panels shall be Federal Yellow in color, with the color being homogeneous throughout panels. Panels shall be provided with temporary removable plastic covers to protect panel exposed surfaces during installation in wet concrete. Panels shall be as manufactured by Engineered Plastics Inc. or Doyon Utilities’ Authorized Representative accepted equal.

Article 30.03.3 - Construction A. Subgrade Preparation

If detailed and specific subgrade structural fill sections for concrete structures are provided on the Plans, those requirements shall take priority over the subgrade requirements specified below.



The entire existing subgrade onto which concrete is to be poured shall be firm, unyielding, thawed, clean granular material (5% or less passing the No. 200 sieve) for at least 2 feet vertical below the bottom of concrete, extending for at least 2 feet horizontal beyond the perimeter of the concrete structure all around, that is graded to the required elevations, lines, and grades, and compacted to 95% minimum density, all per Division 20 – Earthwork, Section 20.01 – General, and Section 20.07 - Excavation, Fill, and Backfill for Roads, Trails, and Structures, and all to the satisfaction of Doyon Utilities’ Authorized Representative.

Prior to the start of concrete forming and pouring operations, all unsuitable base shall be removed and replaced with suitable compacted base material in accordance with Division 20 – Earthwork, to the satisfaction of Doyon Utilities’ Authorized Representative.

The Contractor shall furnish rigid 10-feet straight-edges for checking of subgrade uniformity. Surface irregularities shall not exceed 1/4 inch within 10 feet. Surface irregularities in excess of 1/4 inch within 10 feet shall be corrected to the satisfaction of Doyon Utilities’ Authorized Representative at Contractor expense.

B. Forming

Form materials shall be clean and free from defect at the time of use. Form materials may be of wood or metal or any other material at the option of the Contractor, provided that the forms as set will result in a curb and gutter, valley gutter, sidewalk, curb ramps, and/or similar structures of the specified thickness, cross section, grade and alignment shown on the Plans or directed by Doyon Utilities’ Authorized Representative. Wooden forms for straight work shall have a net thickness of at least 1-1/2 inches. Metal forms for such work shall be of a gage that will provide equivalent rigidity and strength. Curb face forms used on monolithic curb and gutter construction shall be a single plank width when the curb face is 10 inches or less, except for those used in curb returns.

All forms used in curb returns shall not be less than 3/4 inch in thickness, cut in the required length, and held rigidly in place to line, grade, and radius by metal stakes and clamps. The curb face form shall be cut to conform exactly with the curb face batter as well as being cut to the required length and radius.

All forms shall be set to the lines, grade, and dimensions shown on the Plans or directed by Doyon Utilities’ Authorized Representative. The forms shall be thoroughly braced and secured to resist deformation or displacement under load, and shall be installed to permit easy removal without hammering or prying against the fresh concrete. The top of the forms shall not deviate more than 1/8 inch in 10 feet, and the alignment of forms shall be within 1/4 inch in 10 feet.

Forms shall be held securely in place by means of metal stakes driven in pairs at intervals not to exceed 3 feet, one at the front form and one at the back form. Clamps, spreaders, and braces shall be used to the extent as may be necessary to insure proper form rigidity. Form stakes shall be of sufficient size and be driven so as to adequately resist lateral displacement.

Before placement of concrete, steel forms shall be lightly oiled with a good grade of form oil. Excess oil shall be removed by wiping with clean rags, dampened in diesel or fuel oil. Wooden forms may be oiled in the same manner as metal forms, or they may be watered immediately in advance of the placement of concrete. Watering of forms shall be done with potable water, and only when the atmospheric temperature is above 40 Fahrenheit.



Where form work blocks regular pedestrian traffic, sturdy and safe temporary pedestrian bridges with handrails, meeting all applicable OSHA requirements and acceptable to Doyon Utilities’ Authorized Representative, shall be provided. Temporary pedestrian bridges and handrails shall not be attached to or come into contact with forms. Barricades and other safety features shall be installed as necessary.

C. Concrete Batching, Delivery, and Testing

Concrete shall be batched, delivered to the jobsite, and tested in accordance with Section 30.02 - Batching, Delivery, and Testing.

D. Placing of Concrete

Concrete shall not be placed until the subgrade and forms are accepted by Doyon Utilities’ Authorized Representative, and until curing compounds and equipment are available and ready on the project site.

The Contractor shall remove any loose dirt, ice, snow, and/or other debris from the subgrade and forms, prior to placing concrete, to the satisfaction of Doyon Utilities’ Authorized Representative.

The subgrade shall be thoroughly dampened immediately prior to the placement of the concrete.

Ready-mix trucks shall be operated parallel to the forms while discharging.

Concrete shall be discharged from ready-mix trucks to the point of final placement in a continuous manner as rapidly as practicable, but shall not be allowed to free fall more than 3 feet. The rate of placement shall not exceed the rate at which finishing operations can be performed in accordance with these Specifications.

Pump trucks may be used upon approval of Doyon Utilities’ Authorized Representative. Prior to approval, the Contractor must provide assurance satisfactory to Doyon Utilities’ Authorized Representative that the pumping equipment will not segregate or in any other way degrade the concrete.

If curb and gutter is to be placed by slip-form methods, the Contractor shall demonstrate to the satisfaction of Doyon Utilities’ Authorized Representative that the curb machine is capable of placing a dense, uniformly compacted concrete to the exact section, line and grade. Slip-formed curb and gutter that does not meet all requirements of these Specifications shall be replaced at the Contractor's expense

Concrete for sidewalks shall be spread uniformly between the forms and thoroughly compacted with a steel shod strike-board. After the concrete has been thoroughly compacted and leveled, it shall be floated with wood floats and finished at the proper time with a steel float.

E. Curb Ramp Special Requirements

Curb ramps shall comply with the Americans with Disabilities Act (ADA).

In accordance with the ADA Public Rights-of-Way Accessibility Guidelines (PROWAG), dimensions not stated as “maximum” or “minimum” are absolute. All dimensions are subject to conventional industry tolerances, except where the requirement is stated as a range with specific minimum and maximum end points. Refer to ACI 117 for tolerances for concrete construction and materials.



At least 14 calendar days prior to construction of the curb ramps, Contractor shall submit to Doyon Utilities’ Authorized Representative for review and acceptance, a scaled layout drawing for each curb ramp showing expansion joints, control joints, ramp curves, ramp end returns and surface interfaces, landing and turning circle dimensions for wheelchairs, and detectable warning panel placement. The Contractor shall be solely responsible to assure that layout drawings are in strict conformance with the requirements of the ADA.

The Contractor shall construct each curb ramp and install detectable warning panel(s) in conformance with the Standard Details, ADA requirements, submittal drawings accepted by Doyon Utilities’ Authorized Representative, and the detectable warning panel manufacturer’s recommendations.

The Contractor shall place detectable warning panels into fresh concrete in such a manner to ensure that panels are flush with the adjacent concrete surfaces, proper drainage is provided, and potential tripping hazards are eliminated. The Contractor shall ensure that the back edges of the detectable warning panels form smooth arcs and are parallel to the top backs of the curbs. Following final adjustments, the Contractor shall place suitable weights, conforming to the manufacturer’s recommendations, on each panel, and additional weights at panel-to-panel joints, as necessary to provide a solid contact between panel undersides and concrete. The Contractor shall protect panels from being overloaded and/or from shifting until the concrete has fully cured.

After the concrete has cured, the Contractor shall remove protective plastic covers from detectable warning panels. If concrete bleeding has occurred between the panels, Contractor shall remove the residue without damage to the panel surfaces and in accordance with the manufacturer’s recommendation.

The Contractor shall provide a 5 feet diameter circle template, a 3 feet by 5 feet rectangular template, a suitable electronic level, and other measuring tools as necessary to demonstrate that curb ramp and adjacent sidewalk dimensions are in compliance with ADA requirements. Templates shall be of rigid cardboard or other suitable material. The Contractor shall, when requested, demonstrate to Doyon Utilities’ Authorized Representative that wheelchair landing and turning areas that meet the dimensions and slopes required by the Americans with Disabilities Act.

F. Expansion Joints

Expansion joints shall be placed in the following locations:

1. As shown in the Plans and/or Standard Details.

2. Along all structures such as catch basins, manholes, retaining walls, buildings, and other structures that project into or adjoin curb and gutter, valley gutter, and sidewalk.

3. Between curbs and sidewalks.

4. Wherever curved curb and gutter abuts straight curb and gutter.

5. Additional locations as directed by Doyon Utilities’ Authorized Representative.

Expansion joint material shall extend the full width of the structure and shall be cut to such dimensions that the base of the expansion joint shall extend to the subgrade and the top shall be depressed not less than 1/4 inch nor more than 1/2 inch below the finished surface of the concrete. Wherever full sheet material size permits, one single



piece of expansion joint material shall be installed per expansion joint. Expansion joint material shall be securely fastened in vertical positions to the satisfaction of Doyon Utilities’ Authorized Representative.

After the concrete has set, expansion joints shall be cleaned of all dirt, gravel, concrete mortar, and other extraneous material to the satisfaction of Doyon Utilities’ Authorized Representative. After cleaning, expansion joints shall be filled to just below the finish concrete surface with polyurethane expansion joint sealant applied according to the manufacturer’s recommendation. Sealing shall be done in a neat workmanlike manner to the satisfaction of Doyon Utilities’ Authorized Representative.

G. Contraction Joints

Transverse contraction joints shall be installed in curb and gutter by scoring to a depth of 1 inch at 10 feet intervals.

Transverse contraction joints shall be installed in sidewalk by scoring to a depth of 1 inch at 5 feet intervals. Transverse contraction joints in sidewalk shall be edged with a 1/4 inch radius edger.

Where the sidewalk parallels curb and gutter, contraction joints in the sidewalk and curb and gutter shall be made to match where practicable.

H. Finishing

The face of the curb shall be troweled with a tool cut to the exact section of the curb and at the same time maintain the shape, grade, and alignment of the curb. Both front and back exposed edges shall be troweled to a radius of 1/2 inch. Final finish shall be obtained by brooming the surface, including troweled edges, after all free moisture has disappeared from the surface. Sprinkling of cement or sand for blotting will not be permitted.

Sidewalk edges shall be tooled with a 1/2 inch radius edger.

After final troweling, sidewalk shall be given a broom finish perpendicular to the direction of pedestrian traffic. Sidewalk shall be re-marked as necessary after final finish to assure neat uniform edges, joints, and score lines.

Unsightly and/or poorly finished concrete surfaces shall be subject to rejection by Doyon Utilities’ Authorized Representative, and removal and replacement at Contractor expense.

I. Exposed Aggregate Sidewalks

For all exposed aggregate concrete sidewalks, the Contractor shall pour and finish a 2-feet by 2-feet exposed aggregate concrete test panel prior to pouring and finishing exposed aggregate concrete sidewalks. The test panel shall be poured on-site at a location designated by Doyon Utilities’ Authorized Representative.

The Contractor shall notify Doyon Utilities’ Authorized Representative at least 24 hours prior to pouring the test panel to allow the Doyon Utilities’ Authorized Representative to be present. Doyon Utilities’ Authorized Representative may require the Contractor to provide additional panel(s) if the previous test panel does not produce an appearance that matches the adjacent exposed aggregate sidewalk.

For all exposed aggregate concrete sidewalks, Contractor shall float and trowel all surfaces to receive the exposed aggregate finish. Seeding the surface with aggregate



shall not be allowed. After the concrete has taken its initial set, the surface aggregate shall be exposed using a water fog spray and brooms to remove the surface matrix. The coarse surface aggregate shall be exposed very lightly, approximately 1/16 inch. After the concrete has taken its final set, a weak acid wash shall be applied to clean and wash the exposed aggregate surfaces.

The weak acid wash shall be thoroughly neutralized and flushed from the finished surface. Under no circumstances shall Contractor allow the acid wash to enter the storm drain lines or surface waters. Contractor shall protect adjacent construction, plantings, structures, and the public from damage and harm due to the acid wash.

New finished exposed aggregate concrete sidewalk shall match the appearance and texture of adjacent existing exposed aggregate sidewalk. Any significant difference in texture or appearance between two adjacent concrete panels, as determined by Doyon Utilities’ Authorized Representative, shall result in removal and replacement of exposed aggregate concrete panels at Contractor expense.

J. Curing

Membrane curing compound shall be applied to all exposed surfaces immediately after finishing. Transparent curing compounds shall contain a color dye of sufficient strength to render the film distinctly visible on the concrete for a minimum period of 4 hours after application. The curing compound shall be applied in sufficient quantity to obscure the natural color of the concrete. Additional coats shall be applied if Doyon Utilities’ Authorized Representative determines that the coverage is not adequate.

Other standard methods of curing the curb and gutter may be used upon acceptance by Doyon Utilities’ Authorized Representative.

K. Stripping of Forms

Forms shall not be removed until 24 hours minimum after pouring, and until removal can be accomplished without danger of chipping, breaking, or spalling of new concrete. Immediately after form removal, curing compound shall be applied to formed surfaces.

L. Completed Curb and Gutter Requirements

Completed tops of curb and gutter lines shall be true and straight, of uniform width and free of cracks, humps, sags, or other irregularities. The finished concrete surfaces shall not vary more than 1/4 inch when checked with a 10 feet straight edge, except at grade changes or curves.

All new curb and gutter shall be flow tested by the Contractor and inspected by Doyon Utilities’ Authorized Representative. No free-standing water is permitted in gutters on slopes at or greater than 1%. No free-standing water deeper than 1/16 inch is permitted in gutters on slopes of less than 1%.

Curb and gutter and sidewalk failing to meet these requirements shall be subject to rejection by Doyon Utilities’ Authorized Representative, and removal and replacement at Contractor expense.

M. Replacement or Patching of Defects

All curb and gutter, curb cuts, valley gutter, sidewalk, curb ramps, and/or similar structures determined to be defective by Doyon Utilities’ Authorized Representative shall be removed and replaced at Contractor expense, unless permission to patch is granted



by Doyon Utilities’ Authorized Representative. Such permission shall not be construed as an acceptance of the work or as a waiver of the Doyon Utilities’ Authorized Representative's right to require the complete removal of the work, if the patch does not satisfactorily restore the quality or appearance of the surface to the satisfaction of Doyon Utilities’ Authorized Representative.

Should patching be permitted, the area shall be chipped clean to a depth of 1-inch perpendicular to the surface and saturated with clean water prior to being patched. The patch shall be made with a mortar extracted from fresh concrete by passing it through a 3/8-inch screen. The mortar shall be thoroughly compacted and screeded off slightly higher than the surrounding surface to allow for contracting or setting after the maximum shrinkage has taken place. After placement but while still in a workable state, the patch shall be worked to the same finish as the surrounding area and shall be cured as specified above. The use of special patching materials shall be subject to acceptance by Doyon Utilities’ Authorized Representative.

N. Protection of Work

The Contractor shall protect all newly placed concrete from damage of any kind, including but not limited to construction-related damage, vandalism, rain damage, and/or freezing damage. Damaged concrete shall be repaired or replaced to the satisfaction of Doyon Utilities’ Authorized Representative at Contractor expense.

O. Backfilling and Compaction

Curb and gutter, curb cuts, valley gutter, sidewalk, curb ramps, and similar structures constructed of Type I/II Portland cement concrete must have been placed, finished, and if applicable, patched for a minimum of 7 days prior to any material being placed against or compacted adjacent to the new curb and gutter.

Curb and gutter, curb cuts, valley gutter, sidewalk, curb ramps, and similar structures constructed of Type III Portland cement concrete must have been placed, finished, and if applicable, patched for a minimum of 3 days prior to any material being placed against or compacted adjacent to the new curb and gutter.

Granular backfill material within two feet of curb and gutter, curb cuts, valley gutter, sidewalk, curb ramps, and/or similar structures shall meet the requirements of Type II-A Classified Fill, placed and compacted in accordance with Division 20 - Earthwork, 20.07 - Excavation, Fill, and Backfill for Roads, Trails, and Structures.

P. Clean-up

When all concrete work has been completed and cured, the Contractor shall remove the forms, concrete spoils, and other construction debris from the site to the satisfaction of Doyon Utilities’ Authorized Representative.



SECTION 30.04 - BUILDING STRUCTURES, RETAINING WALLS, AND SIMILAR STRUCTURES

Article 30.04.1 - General The work under this Section consists of the construction of Portland cement concrete building structures, retaining walls, mail box bases, and similar structures.

Refer to Standard Details 30.04-1 through 30.04-3 for additional information on construction of Portland cement concrete curb and sidewalk type retaining wall structures.


Article 30.04.2 - Material A. Concrete and Related Materials

Concrete and related materials shall be in accordance with Section 30.02 – Batching, Delivery, and Testing. Unless shown otherwise on the Plans or Standard Details, or specified otherwise in the Special Provisions, concrete shall be Class AA-3.

B. Steel Reinforcing Bars

Steel reinforcing bars shall be Grade 60 deformed bars conforming to the requirements of ASTM A615. Bars shall be free from loose scale, excessive rust, and coating of any character which will reduce the bond between steel and concrete.

Reinforcing bars shall be bent cold and shall conform accurately to the shape and dimensions shown or indicated on the Plans and/or Standard Details and as required by the Specifications. For bent reinforcing bars, the bend radius of any bar shall be at least 4 times the diameter of the bar.

C. Welded Steel Wire Fabric

The welded steel wire fabric shall be cold-drawn bare or galvanized steel wire, fabricated into mesh formed by the process of electric welding. The grade of wire shall conform to AASHTO M32. Welded steel wire fabric shall conform to ASTM A185.

D. Anchoring Adhesive

Anchoring adhesive, for anchoring of steel reinforcing bars or dowels in hardened concrete, shall be epoxy acrylate adhesive, “Sika AnchorFix-2” or Doyon Utilities’ Authorized Representative accepted equal, applied in strict accordance with manufacturer’s recommendations.

E. Vapor Barrier

Vapor barrier, for installation under interior slabs-on-grade, shall be 6-mil polyethylene sheeting.

F. Bonding Agent

Bonding agent, for bonding of fresh concrete to hardened concrete, shall be a high strength epoxy adhesive conforming to the requirements of ASTM C881, “Sika 32 Hi-Mod” or Doyon Utilities’ Authorized Representative accepted equal.

G. Expansion Joint Filler



Pre-molded joint filler for use in expansion joints shall be 1/2 inch thick and shall conform to the requirements of ASTM D1751.

H. Waterproofing for Buried Sections of Stem Walls, Retaining Walls and Similar Structures

Waterproofing for buried sections of building stem walls, retaining walls, and similar structures shall be “Koch Materials TUFF-N-DRI” or Doyon Utilities’ Authorized Representative accepted equal.

I. Polyurethane Expansion Joint Sealant

Polyurethane expansion joint sealant shall conform to the requirements of ASTM C920, “Sikaflex – 1c SL” for horizontal expansion joints, “Sikaflex – 2c NS” for vertical and overhead expansion joints, or Doyon Utilities’ Authorized Representative accepted equals.

J. Epoxy Control Joint Resin

Epoxy control joint resin shall conform to the requirements of ACI 302, “Sikadur – 51 SL” for horizontal control joints, “Sikadur – 51 NS” for vertical and overhead control joints, or Doyon Utilities’ Authorized Representative accepted equals.

K. Drain Rock for Retaining Wall Drain Pockets

Drain rock for retaining wall drain pockets, as shown in the Standard Details, shall be round rock, free of organics and other objectionable materials, meeting the following gradation:

Drain Rock Cumulative % U.S. Std. Sieve Passing by Weight 1" ..................................................... 100 3/4" ................................................ 90 – 100 1/2” ................................................. 50 – 70 #4 ................................................... 0 – 10

Article 30.04.3 - Construction A. Subgrade Preparation

If detailed and specific subgrade structural fill sections for concrete structures are provided on the Plans those requirements shall take priority over the subgrade requirements specified below.

The entire existing subgrade onto which concrete is to be poured shall be firm, unyielding, thawed, clean granular material (5% or less passing the No. 200 sieve) for at least 2 feet vertical below the bottom of concrete, extending for at least 2 feet horizontal beyond the perimeter of the concrete structure all around, that is graded to the required elevations, lines, and grades, and compacted to 95% minimum density, all per Division 20 – Earthwork, Section 20.01 – General, and Section 20.07 - Excavation, Fill, and Backfill for Roads, Trails, and Structures, and all to the satisfaction of Doyon Utilities’ Authorized Representative.

Prior to the start of concrete forming and pouring operations, all unsuitable base shall be removed and replaced with suitable compacted base material in accordance with Division 20 – Earthwork, to the satisfaction of Doyon Utilities’ Authorized Representative.



The Contractor shall furnish rigid 10-feet straight-edges for checking of subgrade uniformity. Surface irregularities shall not exceed 1/4 inch within 10 feet. Surface irregularities in excess of 1/4 inch within 10 feet shall be corrected to the satisfaction of Doyon Utilities’ Authorized Representative at Contractor expense.

For slabs-on-grade with floor drains, the subgrade shall be sloped to match floor slab slope and maintain slab thickness.

B. Forming

All forms shall be constructed, braced, and shored to the satisfaction of Doyon Utilities’ Authorized Representative.

Forms shall conform to the shapes and dimensions of building structures, retaining walls, and similar structures as shown on the Plans and/or Standard Details. Forms shall be accurately set to line and grade.

For wood and prefabricated forms, the Contractor shall minimize form joints, symmetrically align joints and make watertight to prevent leakage, and arrange and assemble formwork to permit dismantling and stripping so that concrete is not damaged during its removal.

The Contractor shall construct formwork to maintain tolerances in accordance with ACI 301. The Contractor shall provide bracing to ensure stability of formwork, strengthen formwork susceptible to overstressing by construction loads, and camber slabs and beams to achieve ACI 301 tolerances. The Contractor shall provide temporary ports in formwork to facilitate cleaning and inspection, located at bottom of forms to allow flushing water to drain. The Contractor shall close ports with tight-fitting panels, flush with inside face of forms, neatly fitted so that joints will not be apparent in exposed concrete surfaces.

Plywood forming shall be as specified by the American Plywood Association. All plywood lining shall be used in as wide pieces as possible. Areas less than 4 feet by 8 feet shall be formed with a single width of plywood. Joints in lining and backing shall not occur at the same place.

All forms shall be securely tied with bolts or rods in such manner that after stripping, such bolts or rods may be either entirely removed or may be removed for a distance at least 1 inch below the concrete surface. Such bolts or rods shall be threaded and provided with nuts to prevent slipping and to provide adjustments. No wire ties or clamping devices shall be permitted.

Form openings shall be provided where required for embedments and/or openings through concrete. The Contractor shall coordinate work in forming and setting openings, slots, recesses, chases, sleeves, bolts, anchors, retaining wall drain pipes, and other inserts. Embedments shall be installed in accordance with manufacturer's instructions, level and plumb or sloped as required, and protected from disturbance during concrete placement.

Forms for building structures, retaining walls, and similar structures shall be built to provide 3/4 inch chamfers on all exposed outside corners of building structures, retaining walls, and similar structure.

Forms for retaining walls shall be built to provide V-shaped grooves at expansion joints, 2 inches wide at the surface by 1 inch deep.



The Contractor shall apply form release agent on formwork in accordance with manufacturer's instructions prior to placing reinforcing steel, anchoring devices, and embedded items. Form release agent shall not be applied where concrete surfaces are scheduled to receive special finishes which may be affected by agent. The Contractor shall saturate contact surfaces of untreated forms with clean water, and keep surfaces wet prior to placing concrete.

Forms and subgrade to receive concrete shall be thoroughly cleaned as erection proceeds. Construction debris, dirt, water, ice, snow, and/or other debris shall be removed from formwork and the subgrade to the satisfaction of Doyon Utilities’ Authorized Representative.

Errors in forming, whether discovered before or after concrete placement, shall be corrected to the satisfaction of Doyon Utilities’ Authorized Representative at Contractor expense.

C. Placement of Vapor Barrier

Vapor barrier shall be installed under interior slabs on grade. Joints in vapor barrier shall overlap 1 foot minimum, and shall be securely taped to the satisfaction of Doyon Utilities’ Authorized Representative. Vapor barrier shall be protected during subsequent activities, and damaged vapor barrier shall be repaired or replaced, all to the satisfaction of Doyon Utilities’ Authorized Representative.

D. Placement of Reinforcing Steel and Embedments

Bar lists and bending diagrams shall be furnished by the Contractor for acceptance of Doyon Utilities’ Authorized Representative. Materials shall not be ordered until such lists and bending diagrams have been accepted by Doyon Utilities’ Authorized Representative. The acceptance of bar lists and bending diagrams will in no way relieve the Contractor of responsibility for the correctness of such lists and diagrams. Any expense incidental to the revision of material furnished in accordance with such lists and diagrams, to comply with the Plans, Standard Details, and/or these Specifications, shall be borne by the Contractor.

All reinforcing steel bars and mesh shall be furnished and installed in accordance with the CRSI Manual of Standard Practice, and to the satisfaction of Doyon Utilities’ Authorized Representative.

Reinforcing bars and mesh shall be positioned as indicated on the Plans, the Standard Details, and these Specifications. Reinforcing bars and mesh shall have at least 3 inches of concrete cover for surfaces that will be buried, and at least 2 inches of concrete cover for surfaces that are exposed to atmosphere. Bars shall be rigidly blocked and wired in place, using metal supports or concrete blocks where necessary, and securely tied at each intersection with annealed iron wire of at least 12-gauge. Mesh shall be blocked with concrete supports where necessary.

Reinforcing bar splices shall be at the points of minimum tensile stress and laps shall be at least 48 bar diameters.

If reinforcing bars are to be welded, welding shall be in strict accordance with AWS D1.4.

In locations where doweling is called for between existing and new concrete, 1/8 inch oversize holes shall be drilled in existing concrete to the required depth and thoroughly blown out with compressed air. Reinforcing bar dowels of the correct grade, size, and



length shall be set in the drilled holes with sufficient quantities of anchoring adhesive to completely fill annular spaces between drilled holes and dowels. Anchoring adhesive shall be installed in strict accordance with adhesive manufacturer’s recommendations.

Inserts, embedded parts, anchors, seats, plates, retaining wall drain pipes, and other items to be cast into concrete shall be accurately set and securely placed to avoid displacement during concrete placement.

Errors and omissions in placement of reinforcement and/or embedments shall be corrected to the satisfaction of Doyon Utilities’ Authorized Representative at Contractor expense.

E. Notification, Final Preparations, and Inspection Before Placing Concrete

The Contractor shall notify Doyon Utilities’ Authorized Representative a minimum of 24 hours prior to commencement of concrete placing operations.

Forms and subgrade shall be thoroughly cleaned after placement of all reinforcement and embedments, but before concrete placement.

Forms and subgrade shall be tented and heated as necessary so that all form surfaces that will be in contact with freshly poured concrete are at least 40o Fahrenheit, and so that the subgrade is completely thawed, prior to pouring of concrete.

Concrete shall not be placed until subgrade, forms, reinforcing steel, embedments, vapor barrier, and bonding agent application have all been accepted by Doyon Utilities’ Authorized Representative and until concrete vibrators and curing materials are on the job site and operational, and until curing materials are on the job site.

F. Concrete Batching, Delivery, and Testing

Concrete shall be batched, delivered to the jobsite, and tested in accordance with Section 30.02 - Portland Cement Concrete Batching, Delivery, and Testing.

G. Placing of Concrete

All concrete shall be placed to the satisfaction of Doyon Utilities’ Authorized Representative. The sizes and limits of individual concrete pours and locations of construction joints shall be subject to acceptance of Doyon Utilities’ Authorized Representative.

The Contractor shall maintain records of concrete pours, including date, locations of pours, cubic yardage of pours, air temperatures, mix designs, test samples taken, and test results.

A bonding agent shall be applied where pouring new concrete directly against previously placed concrete, such as at construction joints. Surface preparation of previously placed concrete shall be in accordance with the bonding agent manufacturer's recommendations. New concrete shall be placed against existing surfaces with bonding agent applied, all within the time limits recommended by the bonding agent manufacturer. Bonding agent shall not be required at expansion joints.

The subgrade shall be thoroughly dampened immediately prior to the placement of the concrete.

Concrete shall be placed by means of ready-mix truck chutes, bottom-dumping concrete buckets with flexible tremmie chutes, wheel barrows, or similar means. At no time shall



concrete have a free fall or more than 3 feet. The concrete shall be brought up in approximately horizontal layers. The concrete shall be placed continuously from one side or end of the section to the other, using care not overload any given area of forms. The rate of delivery of concrete to the work shall be such as to insure continuity of placement. No partially completed surface shall be allowed to stand more than 45 minutes before continuing the placing of concrete thereon.

All concrete shall be thoroughly vibrated, especially along the forms, to prevent the formation of gravel pockets and to permit the escape of trapped air. Vibration shall be such that the concrete becomes uniformly plastic. Vibrators shall be inserted to a depth sufficient to vibrate the bottom of each layer effectively, but shall not be allowed to penetrate partially hardened concrete, to come in contact with reinforcing steel that extends into partially hardened concrete, or to cause the concrete mix to segregate.

The Contractor shall retighten forms immediately after concrete placement as required to eliminate mortar leaks.

The Contractor shall conform to ACI 306 when concreting during cold weather.

H. Installation of Expansion Joints

Expansion joints shall be made where shown, noted, or indicated on the Plans and/or Standard Details, or where directed by Doyon Utilities’ Authorized Representative.

Expansion joints shall be installed where new concrete work abuts existing structures and where new slabs-on-grade abut new walls, columns, or other structural components at vertical faces.

Expansion joints shall be true vertical, true horizontal, and/or parallel and perpendicular with the structure as required. Expansion joints shall extend completely through the structures in which the expansion joints are installed.

If possible, expansion joint filler for a single expansion joint shall be cut from a single piece of material. The joint material shall be cleanly and accurately cut to neatly fit ¼ inch to 3/8 inch inside the cross-sectional shape of structure at the top and sides of the expansion joint. Expansion joint material shall be secured in proper position before and during concrete placement to the satisfaction of Doyon Utilities’ Authorized Representative.

Forms for retaining walls and similar structures shall be built to provide V-shaped grooves at expansion joints, 2 inches wide at the surface by 1 inch deep.

For slabs-on-grade, expansion joint shall extend to the subgrade and the top of the expansion joint shall be depressed not less than 1/4 inch nor more than 3/8 inch below the finished surface of the slab.

I. Finishing of Concrete

Concrete shall be finished as shown or noted on the Plans or Standard Details, as specified herein, or as directed by Doyon Utilities’ Authorized Representative.

Unless shown, noted, specified, or directed otherwise, exposed faces of new concrete that is poured adjacent to existing exposed concrete shall be finished to match the existing exposed concrete.

Floating of concrete shall not begin until bleed water has dissipated. Concrete shall not be dusted with cement to accelerate setting. All surface irregularities caused by floating,



troweling, edging, and similar activities shall be corrected to the satisfaction of Doyon Utilities’ Authorized Representative.

Concrete floor surfaces shall be finished in accordance with ACI 302 and ACI 304. Surface flatness shall be maintained with maximum variation of 1/8-inch in 10 feet.

In slabs with floor drains, floor elevation shall be maintained at walls, and slabs shall slope uniformly to floor drains at 1/8-inch per foot, or as directed by Doyon Utilities’ Authorized Representative.

J. Installation of Control Joints

Control joints shall be true vertical, true horizontal, and or parallel and perpendicular with the structure as required.

Unless shown, noted, specified, or directed otherwise, the maximum distance between control joints for slabs-on-grade shall be 24 times slab thickness. (For instance, 96 inches control joint spacing for a 4 inches thick slab.)

Control joints shall be made by tooling of grooves in fresh concrete, or by sawing of green concrete. Sawed control joints shall be cut in green concrete, prior to initiation of random shrinkage cracking, using 3/16 inch thick blades to depths of one quarter of slab thickness.

K. Removal of Forms, Shoring, and Bracing

Specific timing of form, shoring, and bracing removal shall be subject to acceptance of Doyon Utilities’ Authorized Representative.

Standard forms, shoring, and bracing shall not be removed until concrete has sufficient strength to support its own weight and additional construction loads which may be imposed upon it. Forms shall not be removed until 24 hours minimum after completion of concrete placement.

Load-supporting forms, shoring, and bracing shall be removed only when concrete has attained at least 75% of required 28 day compressive strength. The Contractor shall remove formwork progressively so no unbalanced loads are imposed on structure, and shall avoid damage to concrete surfaces during form removal. Formwork shall be removed in same sequence as concrete placement to achieve similar concrete surface coloration.

Immediately after form, brace, and shoring removal, concrete is carefully re-shored as necessary to facilitate successive construction.

Reusable forms for exposed architectural concrete shall be handled and stored to prevent damage to contact surfaces. Forming materials may be re-used if in satisfactory condition, well cleaned, and re-oiled, subject to acceptance by Doyon Utilities’ Authorized Representative for each re-use.

L. Repair of Damage and Defects

After form removal, damage and defects on exposed concrete surfaces such as gravel pockets, bolt holes, damaged edges and outside corners, etc., shall be repaired to the satisfaction of Doyon Utilities’ Authorized Representative.



After damage and defects have been corrected, all exposed surfaces shall be thoroughly wetted and brushed with a grout composed of one part fine sand and one part cement. Exposed surfaces shall then be kept moist for 24-hours after this grout application.

M. Curing

Concrete shall be protected from premature drying, beginning immediately after placement and continuing for at least 7 days after placement.

Immediately after finishing and any repair of damage and defects, all exposed surfaces shall be covered by layers of absorptive burlap, mats or other approved material weighing not less than 14 ounces per square yard. The cover material shall be kept saturated with clean water for a minimum initial curing period of 24 hours.

Following this initial curing, the concrete shall be completely, tightly, and securely covered with 6 mil polyethylene sheeting for an additional 6 days.

N. Sealing of Expansion and Control Joints

After concrete has cured for 7 days and air dried for at least one day, expansion and control joints shall be cleaned to the satisfaction of Doyon Utilities’ Authorized Representative. Expansion joints shall then be sealed with polyurethane expansion joint sealant and control joints shall be sealed with epoxy control joint resin. Expansion and control joint sealants shall be neatly and carefully applied in strict accordance with manufacturers’ recommendations and to the satisfaction of Doyon Utilities’ Authorized Representative.

O. Waterproofing

Buried surfaces of building structures, retaining walls, and similar structures shall be painted with two coats of waterproof coating applied in strict accordance with waterproofing manufacturers’ recommendations. Waterproofing shall be neatly applied to the satisfaction of Doyon Utilities’ Authorized Representative. When backs of retaining walls and similar structures extend above finished grade, waterproofing shall extend to the top of the wall, or 6 inches above finished grade, as directed by Doyon Utilities’ Authorized Representative, and shall end in a neat straight line.

P. Protection of Work

The Contractor shall protect all newly placed concrete from damage of any kind, including but not limited to construction-related damage, vandalism, rain damage, and/or freezing damage. Damaged concrete shall be repaired or replaced to the satisfaction of Doyon Utilities’ Authorized Representative at Contractor expense.

Q. Backfilling and Compaction

Building structures, retaining walls, and similar structures constructed of Type I/II Portland cement concrete must have been placed, finished, and if applicable, patched, for a minimum of 7 days prior to any material being placed against or compacted adjacent to the new structure.

Building structures, retaining walls, and similar structures constructed of Type III Portland cement concrete must have been placed, finished, and if applicable, patched, for a minimum of 3 days prior to any material being placed against or compacted adjacent to the new structure.



One cubic foot drainage pockets of drain rock shall be placed on back sides of retaining walls at drain pipe locations as shown in the Standard Details. Drainage pockets shall be covered on top and sides with drainage geotextile per Division 20 - Earthwork.

Granular backfill material within 2 feet of building structures, retaining walls, and similar structures shall meet the requirements of Type II-A Classified Fill, placed and compacted in accordance with Division 20 - Earthwork, Section 20.07 - Excavation, Fill, and Backfill for Roads, Trails, and Structures.

R. Piped Retaining Wall Drainage Systems

For retaining wall designs not shown in the Standard Details, piped footing drain systems shall be installed as shown on the Plans or as directed by Doyon Utilities’ Authorized Representative.

S. Clean-up

When all concrete work has been completed and cured, the Contractor shall remove the forms, concrete spoils, and other construction debris from the site to the satisfaction of Doyon Utilities’ Authorized Representative.



PORTLAND CEMENT CONCRETE STANDARD DETAILS

Detail # Description 30.03-1 JBER Standard Curb and Gutter Cross-Sections 30.03-2 JBER Curb and Gutter Cross-Sections for Curb Ramps 30.03-3 JBER Curb and Gutter Termination Transition 30.03-4 JBER Median Curb Nose 30.03-5 JBER Driveway Curb Cut and Sidewalk Ramps 30.03-6 JBER Curb Returns and Valley Gutter 30.03-7 JBER Curb Returns, Valley Gutter, and ADA Sidewalk Ramps & Landings 30.03-8 JBER Perpendicular Curb Ramp 30.03-9 JBER Parallel Curb Ramps & Landing 30.03-10 JBER Unidirectional Curb Ramp & Landing 30.03-11 JBER Minimum Pedestrian & Wheelchair Access Routes 30.03-12 JBER Pedestrian & Wheelchair Access to Traffic Signal Push Buttons 30.04-1 JBER 2’ to 3’ Curb Type Retaining Wall 30.04-2 JBER 6” to 2’ Sidewalk Type Retaining Wall 30.04-3 JBER 2’ to 4’-4” Sidewalk Type Retaining Wall

A

JOINT BASE ELMENDORF-RICHARDSON STANDARD CONSTRUCTION SPECIFICATIONS AND DETAILS

DIVISION 30 - PORTLAND CEMENT CONCRETE

Revisions between 2014 and 2015 Rev.001

Item or Location Description of Revision

Title Sheet Added "AND DETAILS" to title Changed “2014” to “2015”

Entire Document Added "AND DETAILS" to title in page header

Entire Document Changed “2014” to “2015 Rev.001” in page footer

Entire Document Changed Article numbering format to include Division and Section number (30.0#)

Entire Document Changed "excavation permit" to "Dig Clearance Permit" in several locations.

TABLE OF CONTENTS

Entire Table Changed format by using Microsoft WORD Table of Contents feature to automatically provide page numbers for and hyperlinks to various Sections and Articles. Updated page numbering as necessary.

Section 30.01 Added new “Article 30.01.9 - Fire Hydrant Use Permit Requirements” and renumbered remaining Articles as appropriate.

Section 30.02 Deleted “Portland Cement Concrete” from section title.



End of Table of Contents

Added new Section title “LIST OF PORTLAND CEMENT CONCRETE STANDARD DETAILS”.

SECTION 30.01 - GENERAL

Article 30.01.4 First sentence, “Plans or Special Provisions” changed to “Contract Documents.

Article 30.1.7 (was 1.7)

Changed "excavation permit" to “Dig Clearance Permit” in 3 locations. Changed “an excavation permit signed by all appropriate JBER departments” to “a Dig Clearance Permit from JBER CES (673 ABW Form 3 – BCE Work Clearance Request”.

Article 30.01.9 Added new Article “Fire Hydrant Use Permit Requirements” and renumbered subsequent article numbers in this Section as appropriate.

JBER Standard Construction Specifications and Details Revisions Between 2014 Standard Division 30 – Portland Cement Concrete and 2015 Rev.001 Standard

B


Article 30.01.10 (was 1.9)

First paragraph, third sentence inserted “as well as any deviations from Contract requirements, all”. Second paragraph, numbered list, item #2, changed "excavation permit" to “Dig Clearance Permit”. Third paragraph, second sentence, added “except red-lined drawings,”. Third paragraph, added third sentence, “Completed red-lined drawings shall be submitted to Doyon Utilities’ Authorized Representative within 14 calendar days of substantial completion.”

Article 30.01.11 (was 1.10)

First paragraph, second sentence, “with the Request for Proposal, Bidding Documents, and/or the Contract” changed to “in the Contract Documents”. Third paragraph, first sentence, “Request for Proposal, Bidding Documents, and/or the Contract” changed to “Contract Documents”.

Article 30.01.12 (was 1.11)

Paragraph H., subparagraph 1., added “, with concrete dimensions to match existing” at end of sentence. Paragraph I., added last sentence, “Completed red-lined drawings shall be submitted within 14 calendar days of substantial completion, for review and acceptance by Doyon Utilities’ Authorized Representative.”

SECTION 30.02 - BATCHING, DELIVERY, AND TESTING

Section Title Deleted “PORTLAND CEMENT CONCRETE”


Last line inserted “ – General ”

SECTION 30.03 - CURB AND GUTTER, CURB CUTS, VALLEY GUTTER, SIDEWALK, CURB RAMPS, AND SIMILAR STRUCTURES



Added second paragraph, “Refer to Standard Details 30.03-1 through 30.03-12 for additional information on construction of various Portland cement concrete curb, gutter, and sidewalk structures.” Last line inserted “ – General ”


Paragraph A., deleted “Portland Cement Concrete” from reference to title of Section 30.02.


Paragraph A., added first subparagraph, “If detailed and specific subgrade structural fill sections for concrete structures are provided on the Plans, those requirements shall take priority over the subgrade requirements specified below.” Paragraph C., deleted “Portland Cement Concrete” from reference to title of Section 30.02. Paragraph O., third subparagraph, “one foot” changed to “two feet”; “furnished and installed” changed to “placed and compacted”.


C


SECTION 30.04 - BUILDING STRUCTURES, RETAINING WALLS, AND SIMILAR STRUCTURES



Added second paragraph, “Refer to Standard Details 30.04-1 through 30.04-3 for additional information on construction of Portland cement concrete curb and sidewalk type retaining wall structures.” Last line inserted “ – General ”


Paragraph A., deleted “Portland Cement Concrete” from reference to title of Section 30.02. Paragraph K. “Porous Material” changed to “Drain Rock” in 3 locations.


Paragraph A., added first subparagraph, “If detailed and specific subgrade structural fill sections for concrete structures are provided on the Plans those requirements shall take priority over the subgrade requirements specified below.” Paragraph B., third subparagraph, removed “of mortar for exposed concrete”. Paragraph B., fourth subparagraph, “liable” changed to “susceptible”. Paragraph B., fifth subparagraph, “in width” changed to “by 8 feet”. Paragraph B., seventh subparagraph, “tubes” changed to “pipes”. Paragraph C., first subparagraph, first sentence, added “, and shall be securely taped to the satisfaction of Doyon Utilities Authorized Representative”. Paragraph D., third subparagraph, added second sentence. Paragraph D., fourth subparagraph, “40” changed to “48”. Paragraph D., seventh subparagraph, “tubes” changed to “pipes”. Paragraph I., first subparagraph, “in the Special Provisions” changed to “herein”. Paragraph K., third subparagraph, first sentence, added “at least” before “75%”. Paragraph Q., first and second subparagraphs, “curb and gutter” changed to “structure”. Paragraph Q., third subparagraph, “porous material” changed to “drain rock”; and “tube” changed to “pipe”. Paragraph Q., fourth subparagraph, “furnished and installed” changed to “placed and compacted”.

LIST OF PORTLAND CEMENT CONCRETE STANDARD DETAILS

Deleted all references to 2009 Municipality of Anchorage (MOA) standard details Changed detail number format from “30-#” to “30.0#-#”, where the first “#” references a Section number in this document. Added “JBER” to description (title) of each detail.


D


PORTLAND CEMENT CONCRETE STANDARD DETAILS

Changed contents of Title Block of remaining details as follows: Changed MOA logo to DU logo. Added “JBER” to title of each detail.

Changed detail number format to reference appropriate Section # in this document.