Quality Control & Quality Assurance Manual CEMATRIXTM Cellular Concrete

CEMATRIXTM (Canada) Inc. 5440 53rd Street S.E.

Calgary, Alberta T2C 4B6

PH: (403) 219-0484

Document Number: QCS-009

Last Updated: July 24, 2012

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TABLE OF CONTENTS 1 Scope ................................................................................................................................................... 3

1.1 Quality Policy Statement .............................................................................................................. 3 1.2 Quality Standards ........................................................................................................................ 3 1.3 Disposition of Samples and Test Reports ................................................................................... 3

2 Definitions ........................................................................................................................................... 3 3 Corporate Organization ..................................................................................................................... 4

3.1 Organizational Chart .................................................................................................................... 4 3.2 Quality Personnel Qualifications .................................................................................................. 4 3.3 Information Flow .......................................................................................................................... 5

3.3.1 Quality Control Testing ....................................................................................................... 5 3.3.2 Quality Assurance Testing .................................................................................................. 5

3.4 Information Management System ................................................................................................ 5 4 Materials .............................................................................................................................................. 5

4.1 Cement ........................................................................................................................................ 5 4.2 Supplementary Cementing Materials .......................................................................................... 5 4.3 Mixing Water ................................................................................................................................ 5 4.4 Fibers ........................................................................................................................................... 6 4.5 Chemical Admixtures ................................................................................................................... 6 4.6 Foaming Agents ........................................................................................................................... 6 4.7 Trial Batches ................................................................................................................................ 6

5 Production Requirements ................................................................................................................. 6 5.1 Slurry Production ......................................................................................................................... 6

5.1.1 Slurry delivered by redi-mix suppliers ................................................................................. 6 5.1.2 Slurry produced from bagged or bulk powder onsite .......................................................... 7

5.2 Expansion of Cellular Concrete ................................................................................................... 7 5.3 Documentation ............................................................................................................................. 7

6 Cellular Concrete Material Testing ................................................................................................... 7 6.1 Slurry ............................................................................................................................................ 7 6.2 Cellular Concrete Density Measurement ..................................................................................... 7 6.3 Samples ....................................................................................................................................... 8 6.4 Curing Conditions ........................................................................................................................ 8 6.5 Compressive Strength Testing .................................................................................................... 8

6.5.1 Compressive Strength Test Standard ................................................................................. 8 6.5.2 Laboratory Equipment ......................................................................................................... 8

7 Weather Conditions ........................................................................................................................... 9 7.1 Cold Weather ............................................................................................................................... 9

7.1.1 Hydration Aids by Heating & Hoarding ............................................................................... 9 7.1.2 Hydration Aids by using Insulated Tarps ............................................................................ 9

7.2 Precipitation ............................................................................................................................... 10 8 Site Conditions ................................................................................................................................. 10

8.1 Standing Water, Snow and Ice .................................................................................................. 10 8.2 Base for Cellular Concrete ......................................................................................................... 10 8.3 Pre-placement Documentation .................................................................................................. 10

9 Adherence to Design ....................................................................................................................... 11 9.1 Preconstruction Meeting ............................................................................................................ 11 9.2 Pour Dimensions ....................................................................................................................... 11 9.3 Level .......................................................................................................................................... 11

10 Subsequent Activities ...................................................................................................................... 11 10.1 Foot Traffic ................................................................................................................................. 11 10.2 Construction Traffic .................................................................................................................... 11 10.3 Deep Pours ................................................................................................................................ 11 10.4 Backfill Procedures .................................................................................................................... 12

APPENDICES A TO E

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3 Corporate Organization

3.1 Organizational Chart

Drawing 1 CEMATRIX Organizational Chart

3.2 Quality Personnel Qualifications Only persons trained and certified in quality control (QC) / quality assurance (QA) testing by CEMATRIX shall conduct the production quality control. Dr. Jim Li and Mr. Alex Zhu are the personnel responsible for QC / QA testing. Dr. Li joined CEMATRIX in May of 2000. Before this, Jim provided materials consulting to various companies engaged in the use of cement-based materials. Before this, Dr. Li was employed as the Materials Manager at Cancrete Environmental Solutions Inc., where he was trained in the Heidlberg process for stabilizing and solidifying contaminated soils with cement. Dr. Li earned his PhD and worked as a Research Assistant at the University of Calgary from 1991 to 1997. He earned his Master of Science degree in Civil Engineering at the South China University of Technology from 1982 to 1985. He then

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spent six years in various research capacities in China and then Australia before coming to Canada to complete his PhD. Dr. Li's entire education and working career have been involved in the research and development of cement-based products, particularly the microstructure and properties of high strength concrete. Alex has been employed at CEMATRIX for over ten years. His educational training includes a Master of Science degree in Materials Engineering from the South China University of Technology. Alex also has over fifteen years of experience in materials engineering.

3.3 Information Flow 3.3.1 Quality Control Testing

During production, slurry and cellular concrete density will be measured by Mr. Alex Zhu or other trained CEMATRIX personnel as outlined in Section 6. Any required adjustments in the density will be immediately reported to the equipment operator and the site project manager. Density measurements will be recorded on the CEMATRIX Quality Control Form, and submitted to Dr. Jim Li by fax or email. 3.3.2 Quality Assurance Testing Cylinders are cast during production to confirm compliance with specified compressive strength. Cylinders are tested in the CEMATRIX laboratory located in Calgary. Alex Zhu or Dr. Jim Li may test the cylinders. Test results are recorded on the CEMATRIX Compressive Strength Report Form.

3.4 Information Management System

Field test forms are scanned and stored in Adobe Acrobat (pdf) format in the project file on the CEMATRIX server. Compressive Strength Test Results are stored electronically in Microsoft Excel format.

4 Materials

4.1 Cement Portland cement shall conform to the requirements of CSA Standard CAN/CSA A3001, Type GU, HE, HS or InterCem GUb.

4.2 Supplementary Cementing Materials Supplementary cementing materials shall conform to the requirements of CSA Standard CAN/CSA A3001.

4.3 Mixing Water Mixing water shall conform to the requirements of CSA Standard A23.1. Water of questionable quality shall not be used unless proven to produce specimens whose 28-day compressive strength is at least 90 % of those made with known acceptable water and an identical material mix, when tested in accordance with CEMATRIX Cellular Concrete Compressive Strength Test Procedure.

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4.4 Fibers Synthetic fiber, when used, shall conform to ASTM C 1116. Synthetic fiber must be monofilament polypropylene with a length of 12 to 19mm. Glass fiber, when used, must be specifically approved as to type and supplier by CEMATRIX (Canada) Inc.

4.5 Chemical Admixtures Chemical admixtures shall conform to the requirements of ASTM C 494. Only the types and permitted dosages, as prescribed by CEMATRIX (Canada) Inc. in the mix design for each specific application shall be used. There shall be no substitutionsunless prior written approval is obtained from CEMATRIX (Canada) Inc.

4.6 Foaming Agents Foaming agents shall conform to the requirements of ASTM C 869 when tested in accordance with the provisions of ASTM C 796. Furthermore, only CEMATRIX CF-1

TM, CEMATRIX CFP-3

TM, and

PROVOTON TM

foaming agents shall be used unless prior approval of alternatives has been given by CEMATRIX (Canada) Inc.

4.7 Trial Batches When the sources of the materials for cellular concrete, such as cement and other additives, are changed, or there are no historical data for specific uses, trial batches are necessary to develop an optimum cellular concrete mixture to meet the project requirement. Laboratory tests and then production-sized batches are conducted to determine the material proportions and their relative characteristics, and to establish optimum batching and mixing sequences.

5 Production Requirements

5.1 Slurry Production 5.1.1 Slurry delivered by redi-mix suppliers

Purchase orders are used to order specific slurry mix designs that are on file with ready-mix suppliers.

It must be specified to suppliers of redi-mix slurry that mixing and delivery equipment be rinsed and completely emptied of all other concrete or aggregates prior to mixing and transporting slurry for the production of cellular concrete.

The density of slurry from Redi-mix providers shall be confirmed and recorded on-site before operations begin.

If the addition of supplementary cementing materials, fillers, fibre, chemical admixtures or other materials are prescribed to be added on site, they shall be added after the prescribed density has been confirmed, followed by a minimum of 5 min. of mixing at high-speed. Any other measure of slurry consistency as may be prescribed by CEMATRIX (Canada) Inc. shall also be made after mixing.

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5.1.2 Slurry produced from bulk powder onsite

Mix water and bulk powder shall be metered or measured to within a tolerance of +/- 2 % of the mix

design value.

All mixing shall be done with equipment and in such a manner as to ensure complete mixing with no residual unmixed materials remaining. The mixer shall have sufficient power to ensure complete and thorough mixing.

The mixer must be cleaned of all foreign material or previously hardened material that could become dislodged before each batch of slurry is mixed.

After adding the mix water, all dry materials, fibre and chemical admixturesin the quantity and sequence as prescribed in the mix designmixing shall continue until homogeneous slurry is ensured.

The density of the slurry shall be measured and recorded at least once per production run.

5.2 Expansion of Cellular Concrete

Expansion of the slurry into Cellular Concrete shall be conducted only by CEMATRIX personnel, or by persons trained and qualified by CEMATRIX, utilizing equipment provided by CEMATRIX.

5.3 Documentation Daily delivery tickets (see Appendix A) must be reviewed and signed by the clients representative to ensure proper documentation of the actual volume placed.

6 Cellular Concrete Material Testing

6.1 Slurry Slurry is the base material for producing cellular concrete. Following the requirements outlined in Section 5.1 above, CEMATRIX must coordinate with material suppliers to ensure the quality of slurry. Each slurry source must be tested for viscosity and density during production of cellular concrete to ensure compliance with mix proportions. For example, with redi-mix concrete, each truck must be tested.

6.2 Cellular Concrete Density Measurement The density shall be measured and recorded once per batch for batches of 10 m

3 or less; or, for

continuous production, once for every 50m3, or once per 20 minutes, whichever is more frequent. The

density shall be maintained within +/- 10 % of the design density. Density measurements must be recorded on the CEMATRIX Quality Control Form in Appendix B.

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6.3 Samples Cellular concrete samples are taken as per CEMATRIX Cellular Concrete Compressive Strength Test Procedure. This procedure is given in Appendix C. For continuous production, samples should not be taken from the first ten cubic metres of material produced. Samples must be taken approximately 1 m from the discharge point. The number of samples for strength test is governed by the size of the project. One sample is comprised of one set of minimum three cellular concrete cylinders. One sample should be taken for each placement, or every 100m

3, whichever is more frequent.

Cylinders are cast in 3 inch by 6 inch cylindrical plastic molds. The sample mold must be lined with freezer paper with the plastic side against the cellular concrete.

6.4 Curing Conditions Cellular concrete cylinders are cured as per CEMATRIX Cellular Concrete Compressive Strength Test Procedure. This procedure is based on ASTM C495-99a, and modified to represent the field curing conditions for geotechnical applications. Samples must be stored in an undisturbed condition within 15 minutes of casting. The curing temperature must remain between 15 and 30 C for 24 to 96 hours. During the initial day of curing, the samples cannot be moved. Subsequent to initial curing, samples should be stored in an 80% to 100% humidity room at 18 to 27 C until compressive strength testing is performed. Samples should not be removed from the molds for one week from date of casting.

6.5 Compressive Strength Testing

6.5.1 Compressive Strength Test Standard Compressive strength testing of cured cellular concrete cylinders must be performed as per the CEMATRIX Cellular Concrete Compressive Strength Test Procedure. Test results are recorded on the form entitled Compressive Strength Report Form in Appendix C.

6.5.2 Laboratory Equipment In the CEMATRIX laboratory, a load cell manufactured by Honeywell Sensotec is used to measure the force exerted on the cylinders during compressive strength testing. The manufacturer initially calibrated the load cell. CEMATRIX inspects the load cell monthly. The load cell is calibrated by an accredited laboratory to ASTM and CSA specifications on an annual basis.

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7 Weather Conditions

7.1 Cold Weather Cellular concrete may be placed during freezing conditions, provided measures are taken to prevent damage to the cellular concrete until sufficient strength has been attained. Whatever measures are used, the purpose of the early hydration aids is to maintain the cellular concrete in an unfrozen state during initial curing. No cold weather protection measures are required where the minimum daily temperature during early stage hydration is above 0 C. It should be noted that the following hydration aid methods are to be used as a general guideline. However, site-specific methods should be pre-determined by CEMATRIX and the contractor at the time of construction, based on site conditions. 7.1.1 Hydration Aids by Heating & Hoarding Where placement of tarps directly on the cellular concrete is not practical, the area where cellular concrete is to be placed must be enclosed and heated to greater than 0 C. The enclosure and heating must be in place prior to cellular concrete placement. 7.1.2 Hydration Aids by using Insulated Tarps

General recommendations are given below for areas where tarps can be practically placed directly on the cellular concrete, such as in a narrow trench application.

7.1.2.1 400mm or Greater Thickness Frost protection requirements are as follows for applications with a 400mm minimum section:

Minimum Daily Temperature (C)

Frost Protection Measures

-20 C to 0 C One polyethylene sheet covered by one layer of insulating tarps.

-35 C to -20 C One polyethylene sheet covered by two layers of insulating tarps.

Less than -35 C Perform site specific evaluation.

7.1.2.2 200 to 400mm Thickness For applications where the minimum placements are between 200mm and 400mm thick, the following is required:

Minimum Daily Temperature (C)

Frost Protection Measures

-15 C to 0 C One polyethylene sheet covered by one layer of insulating tarps.

-25 C to -15 C One polyethylene sheet covered by two layers of insulating tarps.

Less than -25 C Perform site specific evaluation.

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7.1.2.3 Less than 200mm Thickness For applications where the minimum placements are less than 200mm thick, the following is required:

Minimum Daily Temperature (C) Frost Protection Measures

-10 C to 0 C One polyethylene sheet covered by one layer of insulating tarps. -15 C to -10 C One polyethylene sheet covered by two layers of insulating tarps. Less than -15 C Perform site specific evaluation.

Notes for Section 7.1.2: The polyethylene and insulated tarps must be placed directly on the cellular concrete immediately after cellular concrete placement is complete. Insulating tarps must be placed in such a manner as to prevent gaps between the tarps. Tarps must be left in place until the surface of the cellular concrete can support foot traffic without leaving an indentation.

7.2 Precipitation Cellular concrete must not be placed during heavy rain or snowfall.

8 Site Conditions

8.1 Standing Water, Snow and Ice The placement area shall be free of standing water during placement of cellular concrete and until backfill is placed on top of the cellular concrete. Snow and ice must be removed from the excavation prior to placement.

8.2 Base for Cellular Concrete For most applications, the soil / base beneath the cellular concrete must be free of deleterious material such as large soil lumps and topsoil. Soft soil conditions should be addressed as necessary. The base should be as level as practical. If soil conditions are substantially different than what was assumed in the design, then some additional action may need to be undertaken by others to provide a stable base. If there is a possibility that cellular concrete could flow into the base (e.g. gravel base), the base should be covered and sealed with poly, otherwise, cellular concrete will flow down into the base and could result in extra volumes of cellular concrete be required. Production of cellular concrete must not begin until all issues related to the base are addressed.

8.3 Pre-placement Documentation The site conditions must be documented prior to commencing production. This includes a site sketch, description of the soil base, weather conditions, and a checklist with respect to Sections 8.1 and 8.2. The Pre-Placement Inspection document given in Appendix D is used for this purpose.

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9 Adherence to Design

9.1 Preconstruction Meeting Variations in mixture proportions and deviations from standard testing practice may cause adverse effects on the properties such as density and strength of the cellular concrete. Therefore, the project participants should meet before construction to clarify contract requirements, discuss planned placing conditions and procedures, and review the planned inspection and testing programs of the various parties. The effects on the concrete of time, temperature, placing, finishing and curing should be reviewed. Acceptance criteria for standard-cured test samples and in-place test results should be established. The preconstruction meeting should establish lines of communication and identify responsibilities. It is important to review the procedures to follow when noncompliance with contract requirements is found and suspected. Such advance understanding allows members of the construction team to participate in the quality process, and minimizes future disputes.

9.2 Pour Dimensions Detailed verification of layout and dimensions is typically beyond CEMATRIXs project scope. However, approximate measurements should be undertaken by CEMATRIX personnel to verify pour quantities. Where obvious discrepancies exist, these issues must be addressed and/or clarified prior to production of cellular concrete. Also, the final elevation of cellular concrete must be determined prior to production.

9.3 Level The finished elevation must be within tolerance as specified in the design. Methods to achieve level tolerance must be outlined prior to production. Correction to design levels can be achieved by shaving high areas and filling of low areas.

10 Subsequent Activities

10.1 Foot Traffic To prevent damage to the cellular concrete, foot traffic is not allowed during initial curing. In high traffic areas, precautions such as fencing or security guards may be required.

10.2 Construction Traffic

Loading of, or traffic on the Cellular Concrete shall be prevented until the material has attained sufficient strength to withstand the loads with no damage.

10.3 Deep Pours

Pours deeper than 0.9 m must be fenced. Signs should be provided to warn against entry. These precautions must be in effect until the cellular concrete can support foot traffic.

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10.4 Backfill Procedures The following precautions should be taken to prevent damage to the cellular concrete during backfill:

Backfill can commence when cellular concrete supports foot traffic without leaving an indentation. The contractor must not backfill until CEMATRIX provides written authorization using CEMATRIX Backfill Release Form in Appendix E.

Backfill material must be placed in such a manner as to prevent damage to the cellular concrete. Equipment must not be allowed to drive directly on the cellular concrete until the first lift is placed. The first lift of backfill must not be dropped from a distance of greater than two feet.

A minimum 350mm initial lift thickness if required for vibratory rollers with a weight of 6 tons (5,500kg) or less. Heavier rollers would require static (no vibration) compaction for the first lift.

For an initial lift thickness of less than 350mm, static (no vibration) compaction must be used. The initial lift thickness must not be less than 150mm.

APPENDIX A PRODUCTION FORMS:

- Delivery Ticket

DELIVERY TICKET

PROJECT DETAILS Date: Customer: Delivery Address: Job #: P/O #: Activity: Unit #: Pump Operator: Start Placing: End Placing: CEMATRIX Supervisor:

Notes:

ORDERED QUANTITY

PLACED QUANTITY

UNIT OF MEASURE

PRODUCT CODE PRODUCT DESCRIPTION

RECEIVED BY: (PRINT NAME)

SIGNATURE:

Signature for receipt of cellular concrete & acknowledgement of hazard warning on reverse side.

HAZARD WARNING SEE REVERSE

DROWNING HAZARD

CEMATRIX (Canada) Inc. Phone: (403) 219-0484 5440 53rd Street S.E. Fax: (403) 243-9839 Calgary, AB T2C 4M9 www.cematrix.com

CONDITIONS OF SALE

1. CALCULATION OF VOLUMES TO BE INVOICED Unless otherwise stated in the contract, CEMATRIX calculates the volumes to be invoiced by multiplying the volume of produced slurry by the ratio of slurry density to cellular concrete density. A reliable customer representative or its designate is responsible for having a qualified person on site to confirm the amount of slurry received or processed and the end density of the material processed. In the absence of sign off from such an individual, the customer or contractor accepts the end volumes as determined by the calculation of end volumes made by CEMATRIX and supported by slurry invoices, delivery tickets and the quality control report. 2. PAYMENT The customer agrees to promptly and satisfactorily settle all accounts, CEMATRIX invoices are NET 30 days. Interest of prime plus 2% will be charged on all over due accounts. For ongoing projects/repeat customers CEMATRIX reserves the right to have all outstanding invoices cleared prior to the on- set of a new project. Should your account remain unpaid after 90 days, you will receive 2 days written notice for payment prior to sending for collection. 3. QUALITY CONTROL As a matter of course, CEMATRIX tests the density and quality of the slurry purchased and delivered or processed on site, observes the quality of the material being processed at all times, and measures the end density of the processed material at regular intervals. Samples are taken of the end product and tested for compressive strength. The results of such testing are available for the customers review. CEMATRIX will not take additional samples for third party testing unless requested and paid for by the customer. 4. DISPUTES In the case of any disputes arising between the parties as to the volume poured, the confirmed amount on the delivery tickets or process tickets and the resulting densities on the Quality Control Reports shall prevail. In the case of any disputes with respect to final density and strengths the CEMATRIX quality control tests and results will prevail. 5. DE-WATERING As Lightweight Cellular Concrete is lighter than water the customer is responsible for de-watering before, during and after cellular concrete has been placed and until the pour area has been back filled. 6. PROTECTION OF THE WORK AND PROPERTY The customer is responsible to take all precautions available to protect the work and property during the performance of work.

HAZARDS

DROWNING HAZARD

NOTE: Cellular Concrete contains cement. For additional information, please refer to Material Safety Data Sheet.

RISKS: PRECAUTIONARY MEASURES: FIRST AID MEASURES: Eye Irritant Skin Irritant Causes Burns Drowning Hazard

Avoid prolonged or repeated contact with skin

Wear suitable protection clothing Wear eye protection Wear suitable gloves For deep pours, the area should be fenced

to prevent entry. Signs should also be erected to warn of drowning hazards.

If cellular concrete gets into eyes, flush immediately with water for at least 15 minutes. After flushing, seek medical attention.

Skin areas exposed to wet mixtures should be thoroughly and immediately washed with water.

Persistent discomfort (burns) require medical attention.

APPENDIX B CEMATRIX Quality Control Form

UNIT:

CEMATRIX OPERATOR:

SLURRY SUPPLY:

SLURRY

PAGE _____ OF ______

COMMENTSAMBIENT

DATE:

LOCATION:

QC PERFORMED BY:

CEMATRIX QUALITY CONTROL SHEETPROJECT:

TEMPERATURES(C)CYLSET#DENSITY/MCLOCATIONTIME

CURING TEMPS (C)

MIN:

MAX:

APPENDIX C CEMATRIX QUALITY ASSURANCE FORMS:

- CEMATRIX Compressive Strength Report Form - CEMATRIX Cellular Concrete Compressive Strength Test Procedure

Compressive Strength Report Form - Rev 070910.xls Page 1

Date & Time Cast

Date & Time Tested Code

Wet Density (kg/m3)

Diameter (in)

Height (in)

Weight of Specimen

(g)

Applied Load (lbs)

Surface Area (in2)

Comp. Strength

(MPa)Location Visual Description

Last Modified 9/29/2011

CEMATRIXTM Cellular Concrete Compressive Strength Test Procedure

(Based on ASTM C495 and modified to suit CEMATRIXs practice)

1. Test Specimens 1.1 Samples should be taken after approximately 10 cubic metres of material is placed. 1.2 Test specimens are obtained by using 3x6 inch cylindrical plastic molds. To allow

easy removal from the molds, freezer paper liners are placed in each mold before casting cellular concrete specimens, with the plastic film side towards the cellular concrete. Ensure the liners are cut to fit precisely inside the mold to prevent defects in the sample.

1.3 A set of minimum three test specimens for compressive strength test should be cast from each sample of cellular concrete.

1.4 Curing of specimen: Samples must be stored in an undisturbed condition within 15 minutes of casting. For the first 24 to 96 hours, the specimens should be stored at a temperature between 15 to 30oC. During the initial day of curing, the samples cannot be moved. After the initial curing period, store the specimens in a curing room at 80 to 100% humidity and 18 to 27oC. After at least 7 days, remove the specimens from the molds and continue to store the specimens in the curing room. Before the compressive strength test at a specific age, remove the specimens from the curing room and allow the specimens to air-dry for about four hours.

1.5 Preparation for testing: Band or miter saws may be used to prepare the specimen ends to obtain surfaces perpendicular to the longitudinal axes of the specimens. Measure and record the diameter, height, and weight of each specimen. Inspect the sample and note any defects such as entrapped air. Note: Sulphur end caps should not be used.

2. Compressive strength test

2.1 Procedure: Place the SENSOTEC load cell on the centre of the lower bearing block of the compression test machine. Put the test specimen on the loading cell. Carefully align the axis of the specimen to the center of thrust of the spherically seated loading cell. As the top surface of the test specimen is brought to contact the upper bearing block of the compression test machine, gently adjust the spherically seated loading cell by hand so that uniform bearing is obtained. Continuously apply the load without shock, reaching the failure load in approximately one minute. Record the maximum load sustained by the specimen.

2.2 Calculation: Calculate the unit compressive strength of the cellular concrete specimen by dividing the maximum load by the cross-sectional area.

3. Report

3.1 For each specimen tested report the following information: 3.1.1 Identification of the specimen. 3.1.2 Location where the sample was taken. 3.1.3 Date of the specimen cast. 3.1.4 Date of the specimen tested. 3.1.5 Wet density of the specimen. 3.1.6 Dimensions of the specimen. 3.1.7 Weight of the specimen. 3.1.8 The cross-sectional surface area of the specimen. 3.1.9 Maximum load applied. 3.1.10 Unit compressive strength in psi and MPa. 3.1.11 Visual description of sample noting any defects.

APPENDIX D Pre-Placement Checklist

Project: Date:

Project Number: Time:

Location and Description:

Scheduled Production Start Scheduled Production Finish

am am

pm pm

Day Date Time Day Date Time

Weather

Current Weather: Today's Forecast:

Checklist:

The site is free of standing water. OR

Standing water is present in the excavation. Production cannot commence.

The soil base is stable and free of deleterious material. OR

The soil base is unstable. Production cannot commence.

* Describe soil type

Est. Volume: m3

Extra Volume: m3

Customer: Customer:

PRODUCTION AUTHORIZATION - Site conditions are satisfactory for placement.

Quality Control

PRODUCTION CANCELLATION - Site conditions require remedial measures.

Quality Control

PLEASE PRINT NAME

PLEASE PRINT NAME

PRE-PLACEMENT CHECKLIST

SITE SKETCH

APPENDIX E CEMATRIX Backfill Release Form

CEMATRIX Backfill Release Form

Project: Date:Project Number: Time:Location and Description:

Completion of Cellular Concrete Pour Release for Backfillam ampm pm

Day Date Time Day Date Time

NOTES AND SITE SKETCH (IF NEEDED)

BACKFILL AUTHORIZATION - Cellular concrete is satisfactory for backfill.

PLEASE PRINT NAME SIGNATURE

BACKFILL RESCHEDULE - Cellular concrete needs hours of curing before backfill.

PLEASE PRINT NAME SIGNATURE

CEMATRIX QCQA Manual QCS-009revised July 24,201220120724130044500CEMATRIX QCQA Manual QCS-008revised June 05,201220120605095206862CEMATRIX QCQA Manual QCS-008revised June 05,20122012060509520686220120605095206862

QCS-007, CEMATRIX QCQA Manual rev 20110929Page 3-signedQCS-007, CEMATRIX QCQA Manual rev 20110929Delivery TicketQC SHEETCompressive Strength Report FormCEMATRIX Cellular Concrete Compressive Strength Test ProcedurePreplacement ChecklistBackfill Release FormSheet1