Type
General Knowledge
Author
Himanshu Agarwal and Rajesh Pitroda
Organization
Various
Published in
2017
Submitted by
IRF
Related theme(s)
General
Region
All Regions
Country
All Countries

NANOTECHNOLOGY SETS NEW STANDARDS FOR SUSTAINABLE WATER RESISTANT PAVEMENTS (Paper 914)

Aggregates are water loving in nature. The bound moisture in aggregates due to precipitation, sudden rain or temperature drops cause issues during mixing, laying and pavement service life. The moist aggregates are highly susceptible moisture and cause de-bonding / premature failures.  
Residual moisture in aggregates is a catalyst for reaction of new generation OrganoSilane additive and creates substantially stronger bonding between bitumen binders and aggregates to give excellent resistance to prolonged moisture.
Time & Temperature extension on existing standards like ASTM D3625 Boil test, AASHTO T283, EN 12697-11 Rolling Bottle Test, ITSR EN 12697-23 point to an increase in the point of failure. It is concluded that there will be an extension of life of the bituminous layers / mixes due to chemical bonding of OrganoSilane.