Design of rigid pavement - Example A concrete slab of 12 inch thickness and 25 ft area (Square in shape) rests on a subgrade soil of k=100 psi/inch. Max. load on the slab is 30000lb with contact pressure of 150psi. Calculate the max. stress and deflection for all modes of loading. Check if the slab can carry loads if allowable stress for concrete is 450psi. Calculate the max. stress occurred on the subgrade soil. If a stabilized base of 6 inch thickness and E-1500000psi were placed under the slab, what the effect on the stresses.

Design of rigid pavement - Example A concrete slab of 12 inch thickness and 25ft2 area (Square in shape) rests on a subgrade soil of k=100psi/inch. Max. load on the slab is 30000Ib with contact pressure of 150psi. - Calculate the max. stress and deflection for all modes of loading. - Check if the slab can carry loads if allowable stress for concrete is 450psi. - Calculate the max. stress occurred on the subgrade soil. - If a stabilized base of 6 inch thickness and E=1500000 psi were placed under the slab, what the effect on the stresses