What is it?
A chip seal is an application of asphalt followed with an aggregate cover.
A chip seal is constructed to produce an initial pavement or maintain an existing asphalt pavement.
How is it done?
The technique of constructing a chip seal and its success are influenced by a number of factors.
- the weather
- the surface on which a chip seal is laid
- the grade of asphalt used
- the method of storing and handling the asphalt
- the type and size of rock used as cover aggregate and the dust and moisture on the stone
- the application rate of the asphalt and the rock
- the adjustment and operation of the equipment for applying the asphalt and rock
- the coordination of the operation
- the rolling
- the traffi c control during and after the seal coat is laid
- the brooming
- the post-seal inspection and the application of a fog seal, if necessary