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AASHTO M 20
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AASHTO M 20 70th Edition, January 1, 1970 Standard Specification for Penetration-Graded Asphalt Cement
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Description / Abstract:
This specification covers the following five penetration grades
of asphalt binder for use in highway construction: 40 to 50, 60 to
70, 85 to 100, 120 to 150, and 200 to 300. For asphalt binders
graded by viscosity, see AASHTO M 226.
The values stated in SI units are to be regarded as the standard.
The values stated in SI units are to be regarded as the standard.