In a plane cement concrete pavement of thickness 20 cm, if the coefficient of friction is 1.4 and unit weight of cement concrete is 2400 kg/m3, allowable tensile stress is 1 kg/cm2 the spacing between the contraction joints is ___________m.
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Solution
Spacing between the contraction joints=2ScWf =2×1×104(2400×1.4)=5.95m
As per IRC maximum spacing is 4.5 m. Hence adopt spacing of 4.5 m .