A flexible pavement is designed with 5 inches of HMA wearing surface, 6 inches of hot-mix asphaltic base, and 10 inches of crushed stone subbase. All drainage coefficients are 1.0. Daily traffic is 200 passes of a 20- kip single axle, 200 passes of a 40-kip tandem axle, and 80 passes of a 22-kip single axle. If the initial minus the terminal PSI is 2.0 (the TSI is 2.5), the soil resilient modulus is 3000 lb/in2, and the overall standard deviation is 0.6, what is the probability (reliability) that this pavement will last 20 years before reaching its terminal serviceability?
A flexible pavement is designed with 5 inches of HMA wearing surface, 6 inches of hot-mix asphaltic base, and 10 inches of crushed stone subbase. All drainage coefficients are 1.0. Daily traffic is 200 passes of a 20- kip single axle, 200 passes of a 40-kip tandem axle, and 80 passes of a 22-kip single axle. If the initial minus the terminal PSI is 2.0 (the TSI is 2.5), the soil resilient modulus is 3000 lb/in2, and the overall standard deviation is 0.6, what is the probability (reliability) that this pavement will last 20 years before reaching its terminal serviceability?
Chapter2: Loads On Structures
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Transcribed Image Text:A flexible pavement is designed with 5 inches of HMA
wearing surface, 6 inches of hot-mix asphaltic base,
and 10 inches of crushed stone subbase. All drainage
coefficients are 1.0. Daily traffic is 200 passes of a 20-
kip single axle, 200 passes of a 40-kip tandem axle, and
80 passes of a 22-kip single axle. If the initial minus the
terminal PSI is 2.0 (the TSI is 2.5), the soil resilient
modulus is 3000 lb/in2, and the overall standard
deviation is 0.6, what is the probability (reliability) that
this pavement will last 20 years before reaching its
terminal serviceability?
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