Pretreated aggregate for hotmix asphalt concrete...

Compositions: coating or plastic – Coating or plastic compositions – Bituminous material or tarry residue

Reexamination Certificate

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C106S270000, C106S502000, C428S404000

Reexamination Certificate

active

11181229

ABSTRACT:
A process of producing an asphalt concrete with enhanced performance is provided by utilizing a primer. 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.

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Report from Mr. Thor Evensen—Retired Laboratory Manager, City of Oslo, the Asphalt Works at Huken, Oslo, Mar. 9, 1987.
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Gilsonite Resin—A Modifier for High Stability Pavements by Knut Dokken and Thor Evensen, Nov. 1987, http://www.americangilosonite.com/asphalt—oslo.html, page last updated Oct. 29, 2001.
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UDOT'S Experience With AggCote, Oct. 2003.

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