Determination of coefficient of thermal expansion for Portland Cement Concrete pavements for MEPDG Implementation
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2012-10-01
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Edition:Final report.
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Abstract:The Coefficient of Thermal Expansion (CTE) is an important parameter in Portland Cement Concrete (PCC) pavement analysis and design as it is directly proportional to the magnitude of temperature-related pavement deformations throughout the pavement service life. Several studies in the past few years have classified the CTE as an extremely sensitive input in the Mechanistic-Empirical Pavement Design Guide (MEPDG) for structural design of rigid pavements, because the CTE affects slab stresses due to initial temperature-induced movements, corner deflections, joint faulting, pavement smoothness, and sawcut timing (ARA 2004).
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