A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The Moisture Mechanism that Causes Asphalt Stripping in Asphaltic Pavement Mixtures
The report shows a laboratory test method for the prediction of stripping (asphalt-aggregate debonding) in saturated asphalt concrete mixtures. The method utilizes 4-inch diameter field cores or laboratory specimens, and consists of evaluating split cylinder test results (tensile strengths) on pair-groups of specimens in which some specimens from the same group are thermal cycled in a saturated condition (to duplicate field stripping conditions) and others are maintained in a dry state before testing. The report also includes the development of an optimum set of split cylinder test conditions: rate of deformation and temperature. In addition, a 'tensile strength ratio,' called TSR, was used to quantify the amount of stripping and to rank mixtures. The report summarizes the first work done in the study including fatigue tests on saturated laboratory specimens, static tests under free water and high humidity conditions, supplementary tests to determine internal pressures from temperature change, and an approach to pressure-force relationships for adhesion breakdown. (Author)
The Moisture Mechanism that Causes Asphalt Stripping in Asphaltic Pavement Mixtures
The report shows a laboratory test method for the prediction of stripping (asphalt-aggregate debonding) in saturated asphalt concrete mixtures. The method utilizes 4-inch diameter field cores or laboratory specimens, and consists of evaluating split cylinder test results (tensile strengths) on pair-groups of specimens in which some specimens from the same group are thermal cycled in a saturated condition (to duplicate field stripping conditions) and others are maintained in a dry state before testing. The report also includes the development of an optimum set of split cylinder test conditions: rate of deformation and temperature. In addition, a 'tensile strength ratio,' called TSR, was used to quantify the amount of stripping and to rank mixtures. The report summarizes the first work done in the study including fatigue tests on saturated laboratory specimens, static tests under free water and high humidity conditions, supplementary tests to determine internal pressures from temperature change, and an approach to pressure-force relationships for adhesion breakdown. (Author)
The Moisture Mechanism that Causes Asphalt Stripping in Asphaltic Pavement Mixtures
R. P. Lottman (author)
1971
154 pages
Report
No indication
English
Stripping and Moisture Damage in Asphalt Mixtures
| NTIS | 1984
| Engineering Index Backfile | 1920