Zydex Nanotechnology for Green Roads-22Aug2014

Towards Future Green Roads

APPROACH TO ENVIRONMENTAL MITIGATION

Environmental Mitigation We have taken this earth on lease from our future generations. It is our duty to return it to them in liveable condition if not better. Striving for sustainability through prudent use of limiting natural resources and restraint in emissions is the call of the day. This realization is at the core of all innovations at Zydex

Vision “To create a Sustainable Future for the world by achieving Resource Extension

economically, by reducing usage of limiting resources and extending life cycle”

The following contribute to sustainability in road construction • Reducing the usage of limiting resources like bitumen, aggregate etc. • Extending the life cycle of the roads, so as to defer the demand for such resources • Reducing fuel consumption leading to reduction in emission

Revolutionary nanotechnology for building moisture resistant, long lasting

& maintenance free roads through innovative adaptation of Organosilane chemistry

The New Game

Conventional Road Design Top heavy, Resource intensive Uneconomical Stone Base (WBM / WMM) Granular Subbase (GSB) Granular Sub Base (GSB)

Compacted Subgrade

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 : mapinduzi ya mpya 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

Zydex Nanotechnology : A Game Changer 10-30% savings in Road Construction Cost 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.

Zydex Nanotechnology for Roads • Allows optimization of road section designs leading to lower thicknesses of expensive top layers

• Reduces asphalt consumption in Prime Coat , Tack Coat and Potentially also in Hot Mix Asphalt • Reduces oxidation rate of asphalt • Reduces repair and maintenance including frequency of resurfacing

Reduces CAPEX, maintenance cost and the overall life cycle cost

Solution for Soil Layers

Soil waterproofing with

Untreated

Treated

Waterproofed soil with breathability retained

Reduced water permeability

Breathability

Reduced Expansiveness

Deformation resistance

Higher CBR values

Capillary rise elimination

Better compaction

Confirmation of soil waterproofing Treated with Terrasil

Untreated Sample

Up gradation of Akanu Ibiam Airport, Enugu, Nigeria

Waterproofed Sub Grade Soil

Solution for Bond Coats

& Chemical Bonding

Improved Spreading

Higher bond strength

Improved Coverage

Waterproofing

No Nozzle Clogging

Uniform load transfer due to 100% coverage

Tack free surface Zero volatile emissions

Quick Setting Reduced Slippage

High performance of Bond Coats at lower residual bitumen

REDUCED SURFACE TENSION OF BITUMEN EMULSION  Reduces droplet size and improves spray coverage area

EXCELLENT WETTING  Lowers surface tension of cationic bitumen emulsion  Improved surface coverage for same spray rate

Uneven Tack Coat

Even Tack Coat

HEATING TIME + POOR STABILITY  CLOGGED NOZZLES

X Longer heating time upto of 2-3 hrs 60-70 0C and poor stability of emulsion leads to

Reduced heating time to achieve 40-50 0C and improved stability of Nanotac formulated bitumen emulsion Eliminates nozzle

 Nozzle clogging

clogging

CLEAN NOZZLES

QUICK SETTING WITH NO TIRE PICK UP  Sets quickly 15 – 30 minutes with no tire pick up

 No need to clean the tire marks on old pavements  Eliminates wind shield breakages flying off sticky tires

Solution for Asphaltic Layers

Innovative asphalt additive with multiple benefits

• Chemical bonding to eliminate potholes & ravelling

• Complete coating for improved oxidation resistance • Consistent and higher compaction densities even at lower temperatures • Higher rutting resistance and fatigue resistance

ASPHALT BINDER COMPOSITION Asphalt microstructure is a three dimensional association of polar “Asphaltenes”(5- 15%), dispersed in non-polar "Maltenes” (85-95%)

AGGREGATE-ASPHALT BINDER INTERACTION Typical Interaction

ZycoTherm Interaction Asphalt Binder

Aggregate Non Polar – Non Polar

Polar - Polar 5-15 % Asphalt participates in Bonding

10-20 fold increase

85-95 % Asphalt participates in Bonding

THE CHEMICAL ACTION -OH groups make surface very hydrophilic (water loving) Silanol OH

OH

Si

Particle surface

OH

Si

O

O

Si

O Si

O

Si O

O

O

O

O O Si

Si O

O

O

O

O

Si

Groups

Si

O O

O

OH

Si

O O

Si

O

OH

Si

O O

Si

OH

Si

O

O O

OH

O

Aggregate / Soil / Clay / Sand surface silicate structure Untreated - Basalt Aggregate

ZycoTherm creates molecular level hydrophobic O

Si

zone

O

(water repellent) Particle surface

O O

Si

C Si

O

O

Si O

O

O

O

O

Si O

Alkyl Siloxane surface

O

O

O

O

Si O

Si

Si

Si O

O

O O

O O

Si

O

Si O

O

Si O

Si

O O

O O

Si

O

Si O

O Si

O

O

Si

O

Si

O

O O

O

O

Si O

Zycosoil Treated Basalt Aggregate

O O

Si

4 - 6 nm

O

Si O

Internal Siloxane bonds

Aggregate / Soil / Clay / Sand surface silicate structure after ZycoTherm reaction

WETTING OF ASPHALT BINDER With ZycoTherm

Control Asphalt

Interface layer Clay/Stone powder/Air

Improves Wetting on aggregates

Pinhole free surface

HMA Manufacturing advantages with

Paving advantages with

Key health and environmental benefits  Health Rating for ZycoTherm is 1 (compared to 3 for Amine)  TSCA Registered  Pre-registered for REACH  Substantial Odor Reduction

 Non corrosive

Globally Accepted Zydex Nanotechnology Patented in 135 countries Zydex nanotechnology is almost 100 % replicable irrespective of local material, climatic conditions or application methods. It has been commercially adopted in India, USA, Canada, Mexico, Colombia, Peru, Spain, Nigeria and Indonesia.

It will soon be adopted in Germany, UK, Sweden, Poland, Russia, Czech Republic, Turkey, Thailand, Japan and many other countries.

Zydex nanotechnology benefits all the stakeholders

Users & Environment

Road Construction Industry

Owners

Benefits to the users & the environment • Pothole free, undulations free roads for a comfortable ride • Reduces burden on the state exchequer potentially saving taxes for the public • Allows use of local soil, aggregates etc., saving transportation time and fuel, contributing to sustainability • Reduces consumption of limiting resources like stone and asphalt • Reduces emissions, fumes & odour • Saves fuel due to reduced HMA mixing, laying and compaction temperatures

• Allows higher usage of RAP / RAS, saving asphalt and aggregates, contributing to sustainability

Benefits to the road construction Industry • Reduces the HMA mixing, laying and compaction temperatures saving fuel • Reduces asphalt volatile emissions, fumes & odour - Safe for the crew • Keeps equipment cleaner - tanks, coils, elevators & flights of the mixing chamber and reduces wear & tear of plant • Improves workability of the mix and enables better compaction • Reduces rock pockets • Enables laying & compaction at lower mix temperatures, meaning longer haul distances

Benefits to the Govt. / Owners • Allows optimization of road section designs with reduced thicknesses of expensive top layers saving 10-30% construction cost • Reduces asphalt consumption in Bond Coats and potentially also in Hot Mix Asphalt

• Enables use of local soil, aggregates etc., saving transportation time and fuel cost • Reduces the soil expansiveness eliminating undulations and cracks • Allows higher usage of RAP / RAS

Reduces CAPEX, maintenance cost and the overall life cycle cost

Everyone Benefits – Everyone Wins with

When Dr. Ajay Ranka, CEO - Zydex Industries met Dr J. Claine Petersen, this is what Dr. Petersen had to say

“Ajay, now no one needs to read my work because you have solved the problem” (Dr J. Claine Petersen is one of the most respected researchers in Asphalt chemistry)

Welcome rain !

Nanotechnology

Ensures Pothole Free Roads

Towards Future Green Roads Through Sustainability in Global Road Construction

Let us get ready for the new game !