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From page 26... ... 26 C H A P T E R 5 Findings The study developed performance models for predicting shrinkage cracking and change of modulus of CSL due to growth, fatigue, freeze–thaw cycles, and wet–dry cycles. Incorporating these models into the MEPDG would allow estimating CSL performance over time on a monthly basis for the prevailing traffic, climate, and materials. Read the entire page →
From page 27... ... 27 esraoCeniFretemaraPnoitauqEledoMepyT Shrinkage Crack Shrinkage Crack Spacing in CSL UCS ∙ RH% l1 −1.19E−01 0 l2 5.98E−01 −1.39E−01 l3 −7.78E−01 −1.36E−04 l4 0 0 l5 0 −1.46E−01 l6 0 2.11E+00 l7 −2.20E−03 0 l8 −2.53E−01 0 l9 8.74E+00 3.85E+00 Shrinkage Crack Width in CSL ∙ ∙ UCS ∙ RH% w1 7.81E−03 0 w2 −1.20E+00 0 w3 7.67E−01 1.34E+00 w4 0 1.76E−05 w5 0 3.63E−02 w6 0 0 w7 6.69E−01 0 w8 4.71E−01 5.36E−02 w9 8.63E−04 1.78E−01 eulaVretemaraPnoitauqEledoMepyT Growth Growth p1 1.59 p2 1.61 Durability Wet–Dry UCS UCS UCS 2 m1 2.58 n1 0.62 Freeze–Thaw UCS UCS UCS 2 m2 6.68 n2 0.93 Fatigue Bottom-up Tensile Fatigue k1 1.07 k2 Table 3-6 k3 Table 3-6 Top-down Compressive Fatigue UCS k4 10.85 k5 1.47 Fatigue Damage (Bottom-up and Top-down) n/a n/a Bottom-up Tensile-Fatigue Modulus Reduction 2 m3 3.10 n3 3.99 Top-down CompressiveFatigue Modulus Reduction m4 5.08 n4 2.01 2 Table 5-1. Read the entire page →
From page 28... ... 28 Material Properties Level 1 Level 2 Level 3 (28-day curing at 68°F and 100% RH) Test Procedure Recommended Relationship Range Typical Value UCS Test protocol depends on binder and soil type (see notes) Read the entire page →
From page 29... ... 29 Binder Values Soil Clay Silt Sand Gravel Recycled Materials Cement Range 15 ~ 136 Not applicable Not applicable Not applicable Not applicable Typical 43 Lime Range 12 ~ 75 20 ~ 73 Not applicable 18 ~ 21 Not applicable Typical 29 30 20 C fly ash Range 12 ~ 93 15 ~ 43 14 ~ 96 17 ~ 48 Not applicable Typical 32 24 32 37 Lime and F fly ash Range Not applicable 29 ~ 34 Not applicable Not applicable 25 ~ 35 Typical 31 34 Table 5-4. Level 3 input of resilient modulus of lightly stabilized materials (ksi) Read the entire page →
From page 30... ... 30 Table 5-8. Level 3 input of IDT modulus (ksi) Read the entire page →

From page 26...

... 26 C H A P T E R 5 Findings The study developed performance models for predicting shrinkage cracking and change of modulus of CSL due to growth, fatigue, freeze–thaw cycles, and wet–dry cycles. Incorporating these models into the MEPDG would allow estimating CSL performance over time on a monthly basis for the prevailing traffic, climate, and materials.

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From page 27...

... 27 esraoCeniFretemaraPnoitauqEledoMepyT Shrinkage Crack Shrinkage Crack Spacing in CSL UCS ∙ RH% l1 −1.19E−01 0 l2 5.98E−01 −1.39E−01 l3 −7.78E−01 −1.36E−04 l4 0 0 l5 0 −1.46E−01 l6 0 2.11E+00 l7 −2.20E−03 0 l8 −2.53E−01 0 l9 8.74E+00 3.85E+00 Shrinkage Crack Width in CSL ∙ ∙ UCS ∙ RH% w1 7.81E−03 0 w2 −1.20E+00 0 w3 7.67E−01 1.34E+00 w4 0 1.76E−05 w5 0 3.63E−02 w6 0 0 w7 6.69E−01 0 w8 4.71E−01 5.36E−02 w9 8.63E−04 1.78E−01 eulaVretemaraPnoitauqEledoMepyT Growth Growth p1 1.59 p2 1.61 Durability Wet–Dry UCS UCS UCS 2 m1 2.58 n1 0.62 Freeze–Thaw UCS UCS UCS 2 m2 6.68 n2 0.93 Fatigue Bottom-up Tensile Fatigue k1 1.07 k2 Table 3-6 k3 Table 3-6 Top-down Compressive Fatigue UCS k4 10.85 k5 1.47 Fatigue Damage (Bottom-up and Top-down) n/a n/a Bottom-up Tensile-Fatigue Modulus Reduction 2 m3 3.10 n3 3.99 Top-down CompressiveFatigue Modulus Reduction m4 5.08 n4 2.01 2 Table 5-1.

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From page 28...

... 28 Material Properties Level 1 Level 2 Level 3 (28-day curing at 68°F and 100% RH) Test Procedure Recommended Relationship Range Typical Value UCS Test protocol depends on binder and soil type (see notes)

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From page 29...

... 29 Binder Values Soil Clay Silt Sand Gravel Recycled Materials Cement Range 15 ~ 136 Not applicable Not applicable Not applicable Not applicable Typical 43 Lime Range 12 ~ 75 20 ~ 73 Not applicable 18 ~ 21 Not applicable Typical 29 30 20 C fly ash Range 12 ~ 93 15 ~ 43 14 ~ 96 17 ~ 48 Not applicable Typical 32 24 32 37 Lime and F fly ash Range Not applicable 29 ~ 34 Not applicable Not applicable 25 ~ 35 Typical 31 34 Table 5-4. Level 3 input of resilient modulus of lightly stabilized materials (ksi)

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From page 30...

... 30 Table 5-8. Level 3 input of IDT modulus (ksi)

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