Greening our Roads. Approach
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- Brendan Foster
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1 Greening our Roads Approach To create a Sustainable Future for the world, by achieving Resource Extension economically, by reducing usage of limiting resources and extending life cycle
2 Ensuring Green Roads through Reducing the usage of limiting resources like bitumen, aggregate etc. Use of local soil Extending the life cycle of the roads, so as to defer the demand for limiting resources Reducing fuel consumption leading to reduction in emission
3 Ensures New Organosilane Nanotechnology Dimensional stability (zero or low free swell index) Dimensionally stable soil bases can be achieved at the cost of Rs / m 3 Strength stability - CBR between % stress transfer due to chemically bonded waterproofed bond coats Elimination of moisture susceptibility due to chemically bonded bitumen mixes
4 Results Improved stiffness retention with dimensional and strength stability Permeability reduction of 10-7 to 10-8 cm/sec Breathability of the soil base structure to allow vapors to escape but reduce the water ingress Reduced aggregate & bitumen layer thickness, enabling the design objective for green roads
5 Zydex Nanotechnology : A Game Changer Reduction in top layers thickness with 10-30% savings SOIL LAYERS Zydex Nanotechnology makes the soil impermeable to water, reduces expansiveness and stabilizes almost any type of soil to improve its bearing strength manifold. If used with 1% cement, it can improve the California Bearing Ratio (CBR) to even 100 or above. This is a game changer, as stronger soil base would now allow optimization of road section design. BOND COATS Prime & Tack coats become 100 % waterproofed, due to penetration and chemical bonding. This also ensures 100% coverage at lower residual bitumen, reducing fatigue failure. ASPHALTIC LAYERS Chemical bonding between aggregates and asphalt eliminates moisture induced damage to asphaltic layers. Improves strength and flexibility with higher compaction density.
6 Conventional Road Design Granular Subbase (GSB) Granular Sub Base (GSB) Compacted Subgrade Top heavy, Resource intensive Uneconomical Stone Base (WBM / WMM) Optimized Road Design Balanced, Sustainable, Economical Thin Aggregate Layer Stabilized Soil Replacing Stone Base and GSB Waterproofed and stabilized Subgrade Waterproofed Soil layers Zydex Nanotechnology : A Game Changer Waterproofed and stabilized soil, presents the designer with an opportunity to optimize thicknesses of the expensive top layers, saving 10-30% road construction cost For illustrative purpose only. Not to scale
7 Solution for Soil Layers
8 Soil Stabilization & waterproofing Reduced water permeability Breathability Reduced Expansiveness Deformation resistance Higher CBR values Capillary rise elimination Better compaction
9 Permeability Reduction Untreated Permeability reduced by 500 folds in CH (Black Cotton) Soil, India Treated
10 Solution for Bond Coats
11 Chemical Bonding Higher bond strength Waterproofing Uniform load transfer due to 100% coverage Quick Setting Reduced Slippage Improved Spreading leading to Improved coverage No Nozzle Clogging Tack free surface Zero volatile emissions High performance at lower residual bitumen
12 Milled surface 100% coated with Tack Coat Peab Tack Coat Sealing of Shoulders using NT modified emulsion
13 Solution for Asphaltic Layers
14 Innovative asphalt additive with multiple benefits Chemical Bonding Elimination of potholes & reveling Complete Coating Improved oxidation resistance Consistent compaction Higher compaction densities at lower temperature Higher rutting & fatigue resistance
15 Chemical Bonding
16 Complete Coating Control With Organosilane Bitumen binder Air Interphase Pinhole free surface with jet black look
17 Paving advantages
18 Health and environmental benefits Health Rating for Zydex Organosilane bitumen additive is 1 (compared to 3 for Amine) TSCA Registered Pre-registered for REACH Substantial Odor Reduction Non corrosive
19 MULTI LAYER WATERPROOFED RURAL ROAD, INDIA 4 YEARS PERFORMANCE CONTROL Repaired in 2010 TERRASIL & ZYCOSOIL
20 SUB-BASE STABILIZATION WITH TERRASIL & CEMENT Grading Terrasil Spraying Waterproofed Soil 200mm Soil Laying Cement Laying Cement Spreading
21 SUB-BASE STABILIZATION, WITH TERRASIL & CEMENT Pulverization Terrasil Terrasil Mixing Terrasil Mixing Mixing Spreading Compacted Layer Aggregate Spreading Aggregate RBM Compaction Layer Bitumen Layer
22 UPSHI SARCHU MOUNTAIN ROAD, LEH SEP Laying Control With Zycosoil
23 Build Green Roads with Nanotechnology Thank You
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