Nanotechnology

For

PMGSY Roads

THE CHEMICAL ACTIONZYDEX TECHNOLOGIES

Complete package of eco-friendly additive and waterproofing nanotechnologies

Reduced Moisture susceptibility of the pavements & road bases

Energy Savings

Faster Schedule

Better Quality

Reduced Costs

Easy maintenance

THE CHEMICAL ACTION

Untreated -Basalt

Treated -Basalt

Creates molecular level hydrophobic zone (water repellent)

-OH groups make surface very hydrophilic (water loving)

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OO

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Si

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Si

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Si Si Si Si Si SiSiO

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OHOH

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OH

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Aggregate / Soil / Clay / Sand surface silicate structure

Particle surface

Particle surface

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

InternalSiloxane bonds

Silanol Groups

C4 - 6 nmAlkyl Siloxane surface

Reactive anti-strip agent - Eliminates stripping (de-bonding)

Improves rut resistance

Improves compaction by 1 to 1.5% on the field

Glossier pavements

Does not impart any odor to the asphalt binder or asphalt mix, improved working environment

Dosage : 0.07 to 0.1% by weight of asphalt binder

ASPHALT HMA LAYERS (Carpet and Sealcoat Layers)

Polar - Polar

5-15 % Asphalt participates in Bonding

Non Polar – Non Polar

85-95 % Asphalt participates in Bonding

10-20 fold

Increase

AGGREGATE-ASPHALT BINDER INTERACTION

TYPICAL INTERACTION ZYCOSOIL INTERACTION

Aggregate

AsphaltBinder

RETAINS ABOVE 90 % COATING IN 6 HOUR ASTM D3625 BOIL TEST, 2 HOUR CONDITIONING AT 135°C Basalt Aggregate (DBM) : 45% 20 mm, 10% 10 mm, 45% less than 6 mm with stone dust Asphalt Grade: AC-20 (VG-30, 60-70 penetration grade)

* Specified Standards Less than 75% considered as failure

0102030405060708090

100

Control 2% HydratedLime

0.5% Amine 0.1%Zycosoil

10 min 30 min 1 hr 6 hrs

% C

oated

Agg

rega

tes

BENEFITS

Reduced Tire Pick up

Ensures excellent wetting, penetration

Quick setting time

Clean nozzles for uniform coverage

Reduces residual asphalt binder

Cationic binder Emulsion RS1 1 : water 3 : Nanotac 1% of total water ( Total Water = water + emulsion water)

Waterproofing -

Soil Sub-Grade / Stones Bases / Side Shoulders

BENEFITS

Maintains dry CBR under wet conditions

Maintains breathability One Way Barrier:Water drop cannot go in but Vapor can

escape

Maintains frictional values between silt , sand, clay particles and resists deformation

Reduces Water Permeability

MULTILAYER ENVELOPE -PAVEMENT ON EMBANKMENT

PRIME COAT (WMM / WBM )

Do penetrative waterproofed Prime Coat for bonding using Terrasil solution added to Cationic Bitumen Emulsion.

WMM / WBM Terrasil : Water ltrs (

SUB GRADE & Side Shoulders

DILUTION & DOSAGESoil Layer Soil

type (clays &

silts)

Terrasil : Water

(

PRIME COAT (WMM / WBM )

Do penetrative waterproofed Prime Coat for bonding using Terrasil solution added to Cationic Bitumen Emulsion.

WMM / WBM Terrasil : Water ltrs (

Rural Road Vadodara, India

Subgrade

Untreated compacted bottom layer

Spraying Waterproofing confirmation

Compacted WBM Terrasil Prime coat with bitumen emulsion Waterproofing confirmation

Nanotac Tack coat with bitumen emulsion

Compaction of Zycosoil asphalt sealcoat layer

Stone base (WBM), Prime & Tack coat and Asphalt additive

Zycosoil mixed Carpet layer

POST MONSOON ROAD CONDITION

Treated asphalt surface

Untreated – Stripped asphalt surface with cracks and depression

PMGSY WORK IN PROGRESS (Lingapur to T-19 Package: K.N: 21-36)

WBM Treated with ‘Terrasil’

Trial Stretch  

PRIME COAT SETTING TIME < 30 MINUTES WITH TERRASIL MODIFIED EMULSION

The treated surface makes an impervious layer while no pick-up can be observed

INCREASED WORKABILITY OF ZYCOSOILMODIFIED “TACK COAT & CHIP CARPET”

Zycosoil modified Tack-coat spreads very uniformly and acts as a good interface between Prime-coat applied WBM & Chip-carpet

NON-STICKY AND ECO-FRIENDLY , ZYCOSOIL MODIFIED CHIP-CARPET

Zycosoil modified binder does not stick to metal, rubber or other materials and hence no solvent is required to clean the spreader & no Pick-up

IMPROVED COMPACTION & REDUCED FUEL CONSUMPTION IN ZYCOSOIL MODIFIED CHIP-CARPET

Zycosoil modified Chip-carpet mix is easy to compact, decreases setting time, gives higher binding strength. Compaction requires less number of roller passes

BOON FOR RURAL ROADS WITH SINGLE LANES, OVERLOADS, NO DIVERSIONS

Zycosoil modified chip-carpet gives instant compaction, reduces setting time resulting in “no tire pick-up / tire mark” on movement of loaded Vehicles

Orang Kattang Shergaon Rupa Tenga Road, Tejpur , Project Vartak BRO

Zycosoil mixing in hot asphalt binder

Paving at 65 0C Compaction achieved with lower passes

Setting in 10 minutesTack coat SprayNanotac mixed with MS emulsion (3:1)

UPSHI SARCHU ROAD, LEH - 8 KM, MARCH 2011

Control without additive

With Zycosoil Section

UPSHI SARCHU ROAD, LEH -SEPTEMBER 2011

Work References - IndiaGuj: “Bharthana Bharthani village, Karjan, Vadodara

Wearing course, Godhra, Nadiad-Mehmdabad Industrial Road GIDC, V V Nagar, Anand

SHRamky Infrastructure “NAM expressway 212 km”Gayatri Projects “Hyderabad Karimnagar Ramagundam”Prasad Constructions, Hyderabad SH Package

NHEra Infrastructure NH Package Western HaryanaIn repairs & Maintainence Assam, L& T Mehsana

Rural Road / PMGSY

BRO – Project Himank, Beacon, Shivalik, Deepak, Vartak

TECHNOLOGIES IMPLICATIONS

Materials

Enables use of Quartzite’s, Porous aggregates etc and in-situ soils resolving issue of non availability of aggregates and good soils.

Workability

Prime & Tack coat enables faster workability apart from increase in performance

Environment

Extends the limits of working by allowing lower temperature paving

THANK YOU