Find the spacing for contraction joint to be included in an RCC slab in the rigid pavement having the following details.Permissible tensile stress in the reinforcement, SS = 1250 kg/cm2Slab width, b = 3.5 mThickness of slab, h = 22 cmCoefficient of friction, f = 0.15Unit weight of concrete, W = 2400 kg/m3The steel bars of 1 cm diameter are placed at 0.25 m spacing.

Find the spacing for contraction joint to be included in an RCC slab

1.	Find the spacing for contraction joint to be included in an RCC slab in the rigid pavement having the following details.Permissible tensile stress in the reinforcement, SS = 1250 kg/cm2Slab width, b = 3.5 mThickness of slab, h = 22 cmCoefficient of friction, f = 0.15Unit weight of concrete, W = 2400 kg/m3The steel bars of 1 cm diameter are placed at 0.25 m spacing.
A.	9 m
B.	10.92 m
C.	10 m
D.	9.92 m
Answer» E.

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