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Chip Seal (Surface dressing)

Chip sealing surface treatments extend the service life of existing pavement by filling small cracks and voids to prevent water and air from entering the pavement base and sub-base. The process of chip sealing consists of spraying a liquid asphalt binder onto the existing pavement and covering it with a compatible aggregate. This maintenance application provides protection for the pavement base, sub-base and a satisfactory wearing surface for up to seven years or longer. Chip sealing also improves skid resistance. Chip sealing application requires a bitumen emulsion sprayer, aggregate spreader and rubber tire roller.

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