A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Investigation of Stripping in Asphalt Concrete in South Carolina
A statewide survey of stripping in selected asphaltic concrete highways in South Carolina was conducted. Incidence of stripping was more frequently related to use of open-graded friction courses than to other causes. Asphaltic concrete layers immediately below open-graded friction courses were most frequently stripped. The recommended procedure for predicting moisture susceptibility is to compact specimens for moisture susceptibility testing to approximately 7 percent air voids and to test 3 specimens in indirect tension in the dry condition and 3 specimens in indirect tension following vacuum saturation to approximately 55-80 percent saturation in distilled water. Antistrip additives (hydrated lime and selected liquid additives) were found to be effective in reducing moisture damage for typical South Carolina materials. Different aggregate types and gradations yielded different average indirect tensile strengths and moisture susceptibilities when used with one asphalt cement. Some asphalt cements produced significantly greater indirect tensile strengths in asphaltic concrete mixtures in which cement source was the variable factor.
Investigation of Stripping in Asphalt Concrete in South Carolina
A statewide survey of stripping in selected asphaltic concrete highways in South Carolina was conducted. Incidence of stripping was more frequently related to use of open-graded friction courses than to other causes. Asphaltic concrete layers immediately below open-graded friction courses were most frequently stripped. The recommended procedure for predicting moisture susceptibility is to compact specimens for moisture susceptibility testing to approximately 7 percent air voids and to test 3 specimens in indirect tension in the dry condition and 3 specimens in indirect tension following vacuum saturation to approximately 55-80 percent saturation in distilled water. Antistrip additives (hydrated lime and selected liquid additives) were found to be effective in reducing moisture damage for typical South Carolina materials. Different aggregate types and gradations yielded different average indirect tensile strengths and moisture susceptibilities when used with one asphalt cement. Some asphalt cements produced significantly greater indirect tensile strengths in asphaltic concrete mixtures in which cement source was the variable factor.
Investigation of Stripping in Asphalt Concrete in South Carolina
H. W. Busching (author) / J. L. Burati (author) / S. N. Amirkanian (author)
1986
134 pages
Report
No indication
English
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