Road asphalt composition

Details Road asphalt composition Road asphalt composition

C - Chemistry, Metallurgy

08

L

6/167

C08L 95/00 (2006.01) C08K 3/00 (2006.01) C08K 3/34 (2006.01)

Patent

CA 1332656

Abstract of the Disclosure Asphalt used for road paving containing catalytic cracking catalyst particles which have been burned to remove hydrocarbons deposited thereon during a petroleum catalytic cracking process. The catalyst particles may be present in the asphalt in amounts of from 0.1% to 5.0% by weight of the asphalt, but more preferably from 0.2% to 2.0% by weight of the asphalt. The particles, which are comprised of crystalline and amorphous silica and alumina and silica- alumina combinations, function to prevent oxidative condensation of the asphalt, thus preventing hardening of the asphalt.

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