asphalt tack coat

asphalt tack coat

asphalt shingles: above, an asphalt shingle strip; below, installing asphalt shingles
A light coating of liquid asphalt on an existing asphalt surface or on a portland cement concrete surface; used to ensure a bond between the old surface and the overlaying course.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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