A 9-inch concrete slab is placed on a 8-inch subbase course. There is a rigid foundation 8-feet below the subgrade. The

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answerhappygod
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A 9-inch concrete slab is placed on a 8-inch subbase course. There is a rigid foundation 8-feet below the subgrade. The

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A 9 Inch Concrete Slab Is Placed On A 8 Inch Subbase Course There Is A Rigid Foundation 8 Feet Below The Subgrade The 1
A 9 Inch Concrete Slab Is Placed On A 8 Inch Subbase Course There Is A Rigid Foundation 8 Feet Below The Subgrade The 1 (81.4 KiB) Viewed 31 times
A 9-inch concrete slab is placed on a 8-inch subbase course. There is a rigid foundation 8-feet below the subgrade. The monthly resilient modulus values for the subgrade and subbase from January through December are as follows: Subgrade (psi) Subbase (psi) 20000 20000 15000 5000 5000 5000 8000 8000 8000 15000 20000 20000 45000 45000 20000 20000 15000 15000 15000 20000 20000 25000 30000 35000 There is also a potential for loss of support due to subbase erosion. Check the adequacy of the design using the following given parameters: ESAL = 6 million; concrete compressive strength = 6000 psi; concrete modulus of rupture = 700 psi; drainage is excellent, but the area has heavy rainfall; load transfer coefficient, J = 3.5.
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