Abstract
Frictional force between concrete slab and base is accompanied by horizontal slab movements induced by the variation of temperature and moisture in concrete slabs. The frictional force acts in opposite direction of the horizontal slab movement and develops stress in the slab. Rational evaluations of frictional force between slab and base are significant for designs of joint sealing, slab thickness, and reinforced steel in concrete pavement. Characteristics of friction between concrete slab and base are studied, and a reasonable model for the determination of friction between concrete slab and base are proposed.
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