Pretreated aggregate for hotmix asphalt concrete...

Details Pretreated aggregate for hotmix asphalt concrete... Pretreated aggregate for hotmix asphalt concrete...

2007-08-01

2010-02-16

Brunsman, David M (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Bituminous material or tarry residue

C106S270000, C106S502000, C428S404000

Reexamination Certificate

active

07662226

ABSTRACT:
A process of producing an asphalt concrete with enhanced performance is provided by utilizing a primer comprising uintahite and an augmenter. The primer is added to a hot aggregate with a surface temperature of at least 250 deg. F. prior to addition of an asphalt-derived base binder. The primer forms a primer interlayer between the hot aggregate and the base binder. As a result, the asphalt concrete has enhanced performance when compared with other asphalt concretes produced without a primer being added.

REFERENCES:
patent: 7264667 (2007-09-01), Bouldin

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