A pavement consists of 5 inches of asphalt underlain by a crushed stone based course. There is no sub base. The asphalt has an elastic modulus of 350,000 psi at room temperature and the base course has a CBR of 70. Determine the thickness of the crushed stone base needed to reach an SN of 2.85. Assume the base course is saturated 5% of the time and drains within a day

Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter20: Design Of Rigid Pavements
Section: Chapter Questions
Problem 7P
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A pavement consists of 5 inches of asphalt underlain by a crushed stone based course. There is no sub base. The asphalt has an elastic modulus of 350,000 psi at room temperature and the base course has a CBR of 70. Determine the thickness of the crushed stone base needed to reach an SN of 2.85. Assume the base course is saturated 5% of the time and drains within a day.

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