题目内容
What are the types of rigid pavement?
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Surface course is the layer directly in contact with traffic loads and generally contains superior quality materials.
Base course cannot be composed of crushed stone, crushed slag, and other untreated or stabilized materials.
Rigid pavements have sufficient flexural strength to transmit the wheel load stresses to a wider area below.
The thin layer of bitumen coating between an existing bituminous layer and a new bituminous layer is tack coat.
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