What is the critical stress at the interior of rigid pavement for the below data?Wheel load, P = 5100 kgModulus of elasticity, E = 3×105 kg/cm2Pavement thickness, h = 17 cmPoisson’s ratio, μ = 0.15Modulus of subgrade reaction, k = 7 kg/cm3Radius of contact area, a = 15 cm

What is the critical stress at the interior of rigid pavement for the

1.	What is the critical stress at the interior of rigid pavement for the below data?Wheel load, P = 5100 kgModulus of elasticity, E = 3×105 kg/cm2Pavement thickness, h = 17 cmPoisson’s ratio, μ = 0.15Modulus of subgrade reaction, k = 7 kg/cm3Radius of contact area, a = 15 cm
A.	22.80 kg/cm2
B.	20.85 kg/cm2
C.	23. 85 kg/cm2
D.	21.80 kg/cm2
Answer» C. 23. 85 kg/cm2

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What is the critical stress at the interior of rigid pavement for the below data?Wheel load, P = 5100 kgModulus of elasticity, E = 3×105 kg/cm2Pavement thickness, h = 17 cmPoisson’s ratio, μ = 0.15Modulus of subgrade reaction, k = 7 kg/cm3Radius of contact area, a = 15 cm

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