Chip Seal- Single
A single chip seal wearing surface is a uniform application of a rapid setting asphalt emulsion to a prepared surface, followed by a uniform application of cover aggregate. The materials are then rolled to compaction. The all-weather surface renews aging and weathered pavements; improves skid resistance and lane demarcation; and seals and protects the pavement.
CHFRS-2H, CHFRS-2HP, CHFRS-2P
CMS-1P (CR), CMS-1PC
CRS-1H, CRS-1HM, CRS-1HP, CRS-1P
CRS-2, CRS-2+, CRS-2H, CRS-2HLM, CRS-2HP, CRS-2L, CRS-2P, CRS-2PM, CRS-2S
RS-1H, RS-1M, RS-1P
What is a chip seal?
Chip seals are the most widely used pavement preservation method. They produce an all-weather surface that renews weathered pavements, improves skid resistance, aids in lane demarcation and seals and protects the underlying road surface. While the single surface treatment is the most commonly referenced, there are many types of chip seals including singles, doubles, triples, sandwich, inverted, racked in, etc. Each has a different construction technique and is chosen for a particular purpose.
How is a chip seal applied?
Potholes are sealed, and any large cracks in the road surface are repaired. Sufficient curing of these repairs is allowed before applying the chip seal. The road surface is then cleaned using a power sweeper or rotary broom. For a conventional treatment like a single course chip seal, an asphalt emulsion is then uniformly spray-applied by an asphalt emulsion distributor, and aggregate (chips) are evenly applied with a self-propelled or a truck-attached mechanical spreader. A pneumatic tired roller is then used to embed the aggregate into the asphalt film. After initial cure, excess aggregate is removed by brooming. After the chip seal treatment has cured completely, the surface may be swept again and striping applied.
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