spray-and-chip seal
Quick Summary
A spray-and-chip seal, also known as a bituminous surface treatment, is a road construction technique. It involves applying a layer of hot, liquid bitumen to an existing surface to fill voids and cracks. This is immediately followed by a layer of stone chips spread over the bitumen. Rolling seats the chips into the sticky bitumen, and excess chips are then swept away. This process creates a sealed surface for the pavement. A seal coat is defined as the final layer of bituminous material applied during construction to a bituminous macadam or concrete surface to seal it.12
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roadPavement…coated with stone (called a spray-and-chip seal) or by a thin asphalt layer. The spray-and-chip seal is used over McAdam-style base courses for light to moderate traffic volumes or to rehabilitate existing asphalt surfaces. It is relatively cheap, effective, and impermeable and lasts about 10 years. Its main disadvantage is…
Read More…coated with stone (called a spray-and-chip seal) or by a thin asphalt layer. The spray-and-chip seal is used over McAdam-style base courses for light to moderate traffic volumes or to rehabilitate existing asphalt surfaces. It is relatively cheap, effective, and impermeable and lasts about 10 years. Its main disadvantage is…
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In producing a spray-and-chip seal surface (or a bituminous surface treatment), a porous existing surface is covered with a film of hot, fluid bitumen that is sprayed in sufficient quantity to fill voids, cracks, and crevices without leaving excess bitumen on the surface. The surface is then sprayed…
Read MoreIn producing a spray-and-chip seal surface (or a bituminous surface treatment), a porous existing surface is covered with a film of hot, fluid bitumen that is sprayed in sufficient quantity to fill voids, cracks, and crevices without leaving excess bitumen on the surface. The surface is then sprayed…
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