www.farobel.com THE JRI+ 4 SOLUTION A Disruptive Proposal for the Future of Road and Highway Construction in the U.S. ACPA Mid Year Meeting - Jointing Task Force Chicago, June 22nd 2016
¿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 TECHNOLOGY FOR CIVIL ENGINEERING
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 TECHNOLOGY FOR CIVIL ENGINEERING
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 TECHNOLOGY FOR CIVIL ENGINEERING
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 TECHNOLOGY FOR CIVIL ENGINEERING
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 TECHNOLOGY FOR CIVIL ENGINEERING
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? TECHNOLOGY FOR CIVIL ENGINEERING
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 TECHNOLOGY FOR CIVIL ENGINEERING
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 TECHNOLOGY FOR CIVIL ENGINEERING
¿WHY THE IS JRI+ 4 A REVOLUTION? Elimination of ALL layers under the concrete slab Only a SINGLE LAYER of CONCRETE directly on soil An optional top layer made of asphalt B.M. Bituminous Mix C.G. Cement Gravel Proposed Cross Section C.S. Cement Soil Typical Cross Section S.S.C. Soil Stabilized with Cement S.S. Selected Soil P.C. JRI+ Pavement-grade Concrete of 4,5 Mpa with edges JRI+ supported in 3x3.5x0.22 (m) slabs SAVINGS UP TO 20$/M² IN ROAD CONSTRUCTION TECHNOLOGY FOR CIVIL ENGINEERING
JRI+ 4: THE UNLIMITED DURABILITY EXAMPLE: 20 cm Slab with Daily Traffic of 10.000 13 Ton Axes TECHNOLOGY FOR CIVIL ENGINEERING
COMPARING DURABILITY 4 cm Asphalt layer 20 cm Concrete layer WITH PERMANENT LOAD TRANSFER 35 cm Asphalt layer THE JRI+ 4: MORE DURABILITY AT A LOWER COST TECHNOLOGY FOR CIVIL ENGINEERING
SLAB SIZE ADAPTED TO SOIL QUALITY Minimum Recommended Dimensions SLAB THICKNESS 0.20 250 Total 9 Slabs Soil 200 Min. Length K-Modulus 150 (m) (MPa/m) 6 14 100 5 29 50 4 69 3.5 120 0 3 220 0 1 2 3 4 5 6 7 High quality soil requires a small size slab; poor quality soil, a large one TECHNOLOGY FOR CIVIL ENGINEERING
JRI+ 4: THE METHOD FOR CALCULATIONS ≤ ≤ ≤ ≤ ≤ ≤ ≤ SOIL, LENGTH, STRESS, AXES, DURABILITY 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 TECHNOLOGY FOR CIVIL ENGINEERING
A PATENTED SOLUTION Registered Patents: 2015 Spain U.S. PATENT U.S.A. USPTO Patent Colombia number 9157195 Mexico for JRI+ 4 Patent Russia System: protection China “Methods and for JRI+ 4 devices for Indonesia forming Patent Pending: contraction India joints in concrete Brasil works” Canada TECHNOLOGY FOR CIVIL ENGINEERING
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 Olean, NY, Interstate I-86, Spring 2006 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 TECHNOLOGY FOR CIVIL ENGINEERING
We are ready to discuss with any American Company or Authority the licensing terms and the Business potential of the Olean, NY, Interstate I-86, Spring 2006 JRI+ 4 System Thanks! TECHNOLOGY FOR CIVIL ENGINEERING
Any Questions? TECHNOLOGY FOR CIVIL ENGINEERING
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 TECHNOLOGY FOR CIVIL ENGINEERING
40-50% COST REDUCTION+ NO STRUCTURAL MAINTENANCE JRI+ 4 System Traditional Dowel System High stress in concrete Lower stress: bigger contact surface No minimum soil response Very good soil response Uncontrolled cracks: Controlled cracks with RUBBER: PUMPING & WATER WATER PROOF Oxidation of the dowel Longer Life Polypropylene Need to cutting & sealing No need to cutting & sealing ↓↓↓ Thermal Stresses: smaller slab High thermal stresses Slow & Careful execution Faster execution with specific machinery TECHNOLOGY FOR CIVIL ENGINEERING
AUTOMATIZED INSERTION INTO FRESH CONCRETE HIGH PRECISSION SYSTEM FOR JOINT PLACEMENT TECHNOLOGY FOR CIVIL ENGINEERING
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 Limited Maintenance (only surface layer) The JRI+ 4 Joint triggers a reduction of more that 50% in carbon footprint in road construction projects TECHNOLOGY FOR CIVIL ENGINEERING
ROADS, ESPLANADES, RAILWAYS, STREETS, CHANNELS… Roads Street pavements Trains Water channels Airports Ports …and any concrete surface supported on soil Parkings Industry TECHNOLOGY FOR CIVIL ENGINEERING
José R. Vázquez , CEO C/ Jose Abascal, 19. 4th floor, D. 28003 Madrid (Spain) jvazquez@farobel.com +34 665 027 100 (Mr. Velasco, Head of Business Development) jvelasco@farobel.com www.farobel.com
THANKS
Recommend
More recommend