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Chip Seal

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Synchrnous Chip Seal

Description
Synchronous chip seal is a pavement surface treatment method that synchronously applies asphalt binders in the form of emulsion or hot spray or sometimes cutback and applies aggregates as close to single size as possible. Compacted by tier roller, binders and aggregates will adhere to each other sufficiently, forming a waterproof wearing course to protect the original pavement.
Synchronous chip seal is developed on the basis of traditional chip seal technology. It applies chip sealer to synchronously spray asphalt binders and spread aggregates, which ensures good cohesion of binders and chips to form a gelatinous asphalt coat embedding with aggregates. This coat performs water proof and slid resistance, restraints and holds the reflection of cracks as well.
This technology mainly applies in asphalt concrete pavement of grade two and below. It should be designed according to the related engineering methods when it applies to expressway and top-grade roads.