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Pavement Aashto: subgrade excellent
AASHTO pavement design material properties including layer coefficients, drainage coefficients, and modulus values for flexible and rigid pavement design
| material id | description | layer type | material name | standard | typical modulus MPa (MPa) | typical modulus psi (psi) |
|---|---|---|---|---|---|---|
| subgrade excellent | CBR=25-50; well-graded gravel or crushed stone | subgrade | Subgrade Support - Excellent (A-1 gravel) | AASHTO Guide for Design of Pavement Structures (1993) | 124 | 18,000 |
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