Patent ID: 9249304
Filing Date: 2016-02-02
CPC Classification: C04B,C08K,C08L,D06N,Y02W

Claim Text:
1. A heavy oil ash asphalt composition comprising: a base asphalt having a stiffness; a styrene-butadiene-styrene (SBS) block copolymer in a concentration range of 5%-10% by weight; sulfur in a concentration range of 10%-30% by weight; and heavy oil ash in a concentration range of 15%-25% by weight; such that the heavy oil ash combines with the base asphalt and sulfur to create the heavy oil ash asphalt composition, where the heavy oil ash is present in the heavy oil ash asphalt composition in an amount effective to improve stiffness of the heavy oil ash asphalt composition as compared to the stiffness of the base asphalt.