the jri+ 4 solution jri+ 4 solution acpa mid year meeting - jointing task force chicago, june 22nd...

THE JRI+ 4 SOLUTION

www.farobel.com

ACPA Mid Year Meeting - Jointing Task Force Chicago, June 22nd 2016

A Disruptive Proposal for the Future of Road and Highway Construction in the U.S.

¿WHAT THEJRI+ 4 SOLUTION CAN DO FOR YOU?

PRESENTING THE PATENTED TECHNOLOGY THAT MAKES POSSIBLE TO BUILD MORE DURABLE, LOW COST AND

ENVIRONMENT-FRIENDLY ROADS AND INFRASTRUCTURES

TECHNOLOGY FOR CIVIL ENGINEERING

¿WHAT THEJRI+ 4 SOLUTION CAN DO FOR YOU?

50 % REDUCTION IN THE ROAD CROSS-SECTION CONSTRUCTION COST

HALVES CONSTRUCTION TIME INCREASE IN DURABILITY TESTED IN MORE THAN 60 PROJECTS SAFER AND MORE SUSTAINABLE ROADS, WITH

ZERO STRUCTURAL MAINTENANCE


THE JRI+ 4 JOINT: THE STARTING POINT

Let’s assume we have a soil section without volume changes, with any CBR, and one or two layers:

A structural layer: makes the stress and deflection bearable by the soil

A rolling layer, to improve service (safety, sonority, comfort and durability). May be Asphalt or just Concrete


THE JRI+ 4 JOINT: A PRIOR CONSIDERATION

Deflection is inversely proportional to rigidity

The structural layer must have the least deflections possible to get an elastic response from the soil: Rigidity

E*I=Elascity Modulus*Inertia

must be the highest possible


THE JRI+ 4 JOINT: AN ILLUSTRATIVE EXAMPLE

A 10 cm thick steel plate would render vertical stresses bearable by any soil (including very low CBR)

Would be a good structural layer for any road and stable soil, although certainly expensive

A 18,5 cm Concrete layer of 4,5MPa presents the same rigidity than that steel plate: deflection is the same


THE JRI+ 4 JOINT: STEEL PLATE VS. CONCRETE

Then, why are we using more and more supporting layers, and greater Concrete layer thicknesses?

The answer: because flexo-traction stresses bearable by Concrete are much lower than in steel

And because in conventional system, load transfer requires a good base under the Concrete


THE JRI+ 4 JOINT: THE FINAL QUESTION

Then, how can we reduce those stresses in Concrete? We have four possibilities:

Adding supporting layers Increasing Concrete layer thickness Improving load transfer between slabs Reduce length and width of slabs

THEN, WHAT IS OUR PROPOSAL?


THE JRI+ 4: OUR PROPOSAL

The Load Transfer solution: To improve load transfer between slabs, making it PERMANENT on time

In other words,

THE JRI+ 4 SOLUTION MAKES POSSIBLE THAT THE TRANSFER EFFECTIVENESS DOES NOT DECREASE

WITH TIME PASSAGE


THE JRI+ 4: THE REVOLUTION

If transfer effectiveness does not decrease with time passage, then:

We don’t need supporting layers at all We may reduce slab’s thicknesses We may also reduce slab’s length and width We eliminate the need for dowels, cutting

and sealing So, that is the JRI+ 4 Solution:

CONCRETE SLABS SUPPORTED ONE IN ANOTHER ON THE FOUR EDGES, AND DIRECTLY ON THE SOIL


¿WHY THE IS JRI+ 4 A REVOLUTION?

Typical Cross Section Proposed Cross Section

Elimination of ALL layers under the concrete slab Only a SINGLE LAYER of CONCRETE directly on soil An optional top layer made of asphalt

P.C. JRI+ Pavement-grade Concrete of 4,5 Mpa with edges JRI+ supported in 3x3.5x0.22 (m) slabs

B.M. Bituminous Mix C.G. Cement Gravel C.S. Cement Soil S.S.C. Soil Stabilized with Cement S.S. Selected Soil

SAVINGS UP TO 20$/M² IN ROAD CONSTRUCTION


JRI+ 4: THE UNLIMITED DURABILITY

EXAMPLE: 20 cm Slab with Daily Traffic of

10.000 13 Ton Axes


COMPARING DURABILITY

THE JRI+ 4: MORE DURABILITY AT A

LOWER COST

4 cm Asphalt layer 20 cm Concrete layer

WITH PERMANENT LOAD TRANSFER

35 cm Asphalt layer


Total 9 Slabs Min. Length

Soil K-Modulus

(m) (MPa/m) 6 14 5 29 4 69

3.5 120 3 220

SLAB SIZE ADAPTED TO SOIL QUALITY

SLAB THICKNESS 0.20

High quality soil requires a small size slab; poor quality soil, a large one


0

50

100

150

200

250

0 1 2 3 4 5 6 7

Minimum Recommended Dimensions

JRI+ 4: THE METHOD FOR CALCULATIONS

The slabs rest on the soil in ALL surface points; and at the edges, on the adjacent slabs

The critical load is at the center of the slab The cross section is the same for the entire road, incl. shoulders Slabs have four linear hinges dividing them in nine smaller slabs

SOIL, LENGTH, STRESS, AXES, DURABILITY

≤ ≤ ≤ ≤ ≤ ≤ ≤


A PATENTED SOLUTION

Registered Patents:

Spain

U.S.A.

Colombia

Mexico

Russia

China

Indonesia

Patent protection for JRI+ 4

Patent Pending:

India

Brasil

Canada

2015 U.S. PATENT

USPTO Patent

number 9157195 for JRI+ 4 System:

“Methods and devices for

forming contraction

joints in concrete works”


OUR STRATEGY: ¿WHY THE U.S.A.?

The U.S. Patent is a valuable asset

Testing ground for Infrastructure Industry around the world: other markets will follow

Our priority is to give momentum to the JRI+4 Solution in the US, with it’s rapid adoption in as many infrastructure projects as possible

Olean, NY, Interstate I-86, Spring 2006


We are ready to discuss with any American Company or Authority the licensing terms and the Business potential of the JRI+ 4 System Olean, NY, Interstate I-86, Spring 2006

Thanks!


Any Questions?


THE SOIL: A SOLUTION SUITABLE FOR ANY CBR

Soil stabilization (lime or cement) may be recommended in some situations

But the JRI+ 4 offers the best solution: to spend money in increasing slab’s thickness, rather than in improving soil or adding layers

The poorer the soil, and the greater the loads, the bigger savings the JRI+ 4 will bring


40-50% COST REDUCTION+ NO STRUCTURAL MAINTENANCE

Traditional Dowel System JRI+ 4 System

High stress in concrete Lower stress: bigger contact surface

Very good soil response No minimum soil response

Uncontrolled cracks: PUMPING & WATER

Controlled cracks with RUBBER: WATER PROOF

Oxidation of the dowel Longer Life Polypropylene

Need to cutting & sealing No need to cutting & sealing

High thermal stresses ↓↓↓ Thermal Stresses: smaller slab

Slow & Careful execution Faster execution with specific machinery


AUTOMATIZED INSERTION INTO FRESH CONCRETE

HIGH PRECISSION SYSTEM FOR JOINT PLACEMENT


JRI+ 4: ENVIRONMENTAL FRIENDLY CONSTRUCTION

Radical savings in quarry aggregates for road base layers

More efficient use of concrete Less transportation and less

CO₂ emissions Lower energy consumption

The JRI+ 4 Joint triggers a reduction of more that 50% in carbon footprint in road construction projects

Limited Maintenance (only surface layer)


ROADS, ESPLANADES, RAILWAYS, STREETS, CHANNELS…

Roads Trains

Airports Ports

Industry

Street pavements

…and any concrete surface supported on soil

Water channels

Parkings


www.farobel.com

José R. Vázquez , CEO C/ Jose Abascal, 19. 4th floor, D.

28003 Madrid (Spain) [email protected]

+34 665 027 100 (Mr. Velasco, Head of Business Development) [email protected]

mailto:[email protected]

mailto:[email protected]

THANKS

the jri+ 4 solution jri+ 4 solution acpa mid year meeting - jointing task force chicago, june 22nd...

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