释义 |
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. 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. |