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The maximum stress sustained by concrete pavements in kg/cm^2 is _________

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The maximum stress sustained by concrete pavements in kg/cm^2 is _________

(a) 45

(b) 30

(c) 25

(d) 15

This question was addressed to me in an interview.

The origin of the question is Design of Road Pavement topic in portion Valuation, Reports Technical and Design Data of Civil Engineering Drawing

1 Answer

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Best answer
Right choice is (a) 45

For explanation: The concrete pavements are designed to sustain a stress of 45Kg/cm^2 which is the maximum limit.

Temperature Stresses– Due to the temperature differential between the top and bottom of the slab, curling stresses (similar to bending stresses) are induced at the bottom or top of the slab

 Frictional stresses– Due to the contraction of slab due to shrinkage or due to drop in temperature tensile stresses are induced at the middle portion of the slab. Wheel Load Stresses– CC slab is subjected to flexural stresses due to the wheel loads.

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