A rigid pavement of 20 cm thickness, made up of cement concrete of elastic modulus of 3.0 × 105 kg/cm2 and Poisson ratio of 0.15. The modulus of subgrade reaction and radius of contact area respectively area 6.0 kg/cm3 and 15 cm. Calculate the probable location of crack formation (distance from apex of slab corner to section of maximum stress) due to corner load if the slab is subjected to the wheel load of 5100 kg.
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