Antistripping asphalt compositions and additives used therein

Details Antistripping asphalt compositions and additives used therein Antistripping asphalt compositions and additives used therein

1991-10-07

1992-11-17

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Fat, fatty oil, fatty oil acid or salt thereof containing

106246, 106248, C09D 700

Patent

active

051640023

ABSTRACT:
An improved anti-stripping additive for asphalt/aggregate composition used in constructing and repairing highways, pavements, driveways and parking lots consists essentially of a citrus terpene (4-isopropyl 1-methylcyclohexene) D-limonene mixed with a vegetable oil such as cottonseed oil, soya oil, rapeseed (canola) oil, peanut oil, corn oil, sunflower oil, palm oil, coconut oil, and palm kernel oil, etc. and a silicone oil dispersant. A preferred composition cosists essentially of 10-15 parts citrus terpene (D-limonene) and 85-90 parts vegetable oil, and an effective amount, up to 2 parts, of silicone oil, for dispersing the vegetable oil and terpene, the parts in the composition totaling 100. When 0.5-1.0 parts of this composition are mixed with 99.0-99.5 parts asphalt and 4-8 parts of the mixture are added to 92-96 parts of aggregate, the resulting asphalt/aggregate may be used as a hot-mix asphalt, hot-mix cold lay asphalt, slurry seal and precoat asphalt for paving. The anti-stripping additive is effective to prevent water damage to asphalt pavements and is biodegradable and ecologically acceptable and substantially reduces odor of asphalt compositions.

REFERENCES:
patent: 5053118 (1991-10-01), Houser

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