Using Existing Pavement in Place and Achieving Long Life (2014) / Chapter Skim
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Pages 109-122
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From page 109... ...
109 A p p e n d i x d Rigid Renewal Thickness design Table development The rigid pavement "overlay" designs contained in the inter active software and design guidelines were developed by two separate design procedures: AASHTO 93 and the Mechanistic Empirical Pavement Design Guide (MEPDG) Version 1.1 (September 2009)
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110 c. For transverse joint faulting (JPCP, upper limit over the design period)
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111 Sub sequently, an additional faulting level equal to 0.2 in. along with higher cement content was examined due to the extreme slab thickness for weak subgrade (5,000 psi)
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112 Table D.6. ESAL/Axle for All Vehicle Classes from Default Load Spectra Vehicle Classification Single Axle Tandem Axle Tridem Axle 4 0.35a 0.27 0 5 0.15 0.16 0 6 0.29 0.39 0 7 0.66 0.80 0.58 8 0.25 0.15 0 9 0.20 0.42 0 10 0.21 0.56 0.22 11 0.37 0.32 0.10 12 0.29 0.33 0.34 13 0.29 0.62 0.61 a See example calculation in Table D.5.
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113 Table D.17. Subgrade Type Layer 3: A-6 Unbound material A-6 Thickness (in.)
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114 Source: NCHRP 2004a. Figure D.2.
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115 Table D.20. Initial MEPDG Runs with Limiting Joint Faulting Set 0.1 in.
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116 study team to match a shorter span of time with D = 0.1. Additionally: 1.
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117 FHWA, U.S. Department of Transportation.
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118 Table D.23. Layer Moduli Properties Material Description Minimum Modulus (psi)
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119 Table D.25. Summary of PerRoad Solutions for Subgrade 5 ksi, Processed Existing Pavement 30 ksi ESALs (millions)
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120 Table D.29. Summary of PerRoad Solutions for Subgrade 10 ksi, Processed Existing Pavement 50 ksi ESALs (millions)
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121 Table D.36. Summary of PerRoad Solutions for Subgrade 20 ksi, Processed Existing Pavement 100 ksi ESALs (millions)
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122 Table D.39. Final Flexible Renewal Thickness Design Table for Flexible Designs for Subgrade MR 20,000 psi ESALs (millions)
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