Computer · Highway Engineering
Select the INCORRECT match of bituminous road construction with its application/usage.
- 1Tack coat - The application of bituminous material over an existing pavement surface which is relatively impervious and has already been treated by a prime coat.
- 2Seal coat - A very thin subgrade treatment or a single coat surface dressing which is usually applied over an existing impervious surface to seal cracks and joints.✓
- 3Full grout - When bitumen penetrates to the full depth of compacted aggregate, usually adopted in regions of heavy rainfall and high traffic.
- 4Prime coat - The first application of a low viscosity liquid bituminous material over an existing porous pavement surface to plug the voids of the porous surface.
Correct answer
Seal coat - A very thin subgrade treatment or a single coat surface dressing which is usually applied over an existing impervious surface to seal cracks and joints.
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