Heavy oil ash in roofing, damp-proofing, and water proofing applications
AssigneeSaudi Arabian Oil Company
InventorsMohammed Al-Mehthel, Hamad I. Al-Abdul Wahhab, Saleh H. Al-Idi, Ibnelwaleed A. Hussein
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Abstract
This invention relates to asphalt compositions. More specifically, this invention relates to asphalt compositions including asphalt, heavy oil ash, and sulfur. The invention provides a heavy oil ash asphalt composition that includes a base asphalt, sulfur, and heavy oil ash resulting in improved properties, as well as a method of making the composition. The heavy oil asphalt compositions can be used for asphalt based roofing compositions, damp-proofing compositions, and water proofing materials.
Claims8
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.
A heavy oil ash asphalt composition comprising:
- a base asphalt having a stiffness;
- an ethyl vinyl acetate (EVA) polymer 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.
Dependencies are inferred from the claim text.