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In rigid pavement slab design, expansion joints are provided primarily to:

ARelieve tensile stresses caused by drying shrinkage
BAllow longitudinal thermal expansion and prevent compressive buckling
CImprove skid resistance of pavement surface
DAllow transverse shear load transfer between lanes

Explanation

Expansion joints allow concrete slabs to expand horizontally during high temperatures without crushing or buckling.

Submitted by: mcqstutor Team More Civil Engineering MCQs →

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