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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)
OSi
OSi
OSi
OSi
OSi
OSi
OSi
OO
Si
O
OO
O
Si
O
O
O
Si
O
O
O
Si
O
O OO O
O
O
Si
O
O
O
Si
O
O
O
Si
O
O
Si Si Si Si Si SiSiO
OO
OO O O OO
O OO O
OSi
OSi
OSi
OSi
OSi
OSi
OSi
OO
Si
O
OHOH
O
Si
O
O
Si
O
OH
O
Si
O
O OO O
O
O
Si
O
OH
O
Si
O
OH
O
Si
O
OHOH
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 (<1000 ppm TDS) Ratio
Cationic bitumen emulsion
kg
Dosage Liter /
m2
No. of applications
Prime Coat 1 : 600 40 2 2
SUB GRADE & Side Shoulders
DILUTION & DOSAGESoil Layer Soil
type (clays &
silts)
Terrasil : Water
(<1000 ppm TDS) Ratio
Liter /m2
or up to saturation
No. of Applications
Bottom, Intermediate
and Top
CH & CI 1 kg : 400 liters
1.5–3 2
ML & CL 1 kg : 800 liters
1-2 2
Shoulders & Side Slopes
ML & CL 1 kg : 800 liters
2–3 2
Spray – Dry - Spray
PRIME COAT (WMM / WBM )
Do penetrative waterproofed Prime Coat for bonding using Terrasil solution added to Cationic Bitumen Emulsion.
WMM / WBM Terrasil : Water ltrs (<1000 ppm TDS) Ratio
Cationic bitumen emulsion
kg
Dosage Liter /
m2
No. of applications
Prime Coat 1 : 600 40 2 2
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
