LEADCAP is an organic additive developed specifically for warm mix asphalt pavement. LEADCAP is produced by Kumho Petrochemical Ltd. which is one of the largest producers of synthetic rubbers. Kumho's KTR SBS thermoplastic elastomer is widely used for Polymer Modified Asphalt (PMA) in the US and the World.

States Applied Average Field Density of Cores
Iowa (August 2011/Sept 2012) 91%/94%
Minnesota (August 2012) 94%
Iowa (September 2013) 96%
Ohio (September 2013) 96%
Iowa (October 2014) 94%


Field Implementation

Indoor Accelerated Testing