DEVELOPMENT OF MACSEAL M.A.R.S: AN OPTION TO SEAL WIDE CRACKS
In helping the industry repairing cracks wider than those conventional asphaltic products cannot seal, our R&D team developed a line of hot-applied sealant branded as MACSEAL M.A.R.S to repair wide cracks and other severe pavement distresses.
This sealant consists of a blend of specially engineered polymer modified binder a carefully selected aggregate fraction. To apply the product, a kettle with agitator is used to heat the product to the discharge temperature as shown. Initial field trials were conducted last year at different General Aviation Airports (GAA) across the Ontario province, where cracks on runways, taxiways were sealed.
After the first winter, all the repairs were found in good conditions. MACSEAL M.A.R.S is also being applied throughout different municipalities to repair cracks on municipal roads that traditional crack sealants are no longer effective, and the road owner does not have funding to rehabilitation.
More information on MACSEAL M.A.R.S can be found in at: http://www.mcasphalt.com/sites/default/files/MCA%20PDS%20-%20Macseal%20M.A.R.S.pdf
Author: Dr. Sina Varamini, Ph.D., P.Eng. (Research and Development Manager)