tack coat
tack coat
[′tak ‚kōt] (civil engineering)
A thin layer of bitumen, road tar, or emulsion laid on a road to enhance adhesion of the course above it.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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.
References in periodicals archive
During road construction, when applying the
tack coat between layers of asphalt, there is a danger of damage from tyres and caterpillar tracks of construction vehicles disrupting effective adhesion, thereby reducing the durability of the road structure.
Although GlasGrid is self-adhesive, the engineering firm specified that a
tack coat be applied to promote adhesion.
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