A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effect of Moisture and Aging on Asphalt Pavement Life. Part 2. Effect of Aging
The report presents the results of a study to evaluate the effect of oxidative aging on asphalt mixtures. The results of tests on field core samples from 8 projects representing different regions in Oregon were compared with those from laboratory mixture samples for selected projects subjected to accelerated aging tests. The study also involved laboratory tests on asphalt used in those projects selected for the laboratory aging process for mixtures. The procedure selected for aging laboratory mixtures involved using a Pressure Oxygen Bomb (POB), a sealed container in which mixture and/or asphalt samples were subjected to pure oxygen at 100 psi pressure at 140 deg F (60 deg C), for periods of up to five days. The asphalt samples were aged on a Fraass plaque to achieve minimum disturbance of the sample, and the degree aging assessed by change in the Fraass breaking temperature. The asphalt of the study showed that the POB was an effective means of producing measurable changes in both mixtures and asphalt samples.
Effect of Moisture and Aging on Asphalt Pavement Life. Part 2. Effect of Aging
The report presents the results of a study to evaluate the effect of oxidative aging on asphalt mixtures. The results of tests on field core samples from 8 projects representing different regions in Oregon were compared with those from laboratory mixture samples for selected projects subjected to accelerated aging tests. The study also involved laboratory tests on asphalt used in those projects selected for the laboratory aging process for mixtures. The procedure selected for aging laboratory mixtures involved using a Pressure Oxygen Bomb (POB), a sealed container in which mixture and/or asphalt samples were subjected to pure oxygen at 100 psi pressure at 140 deg F (60 deg C), for periods of up to five days. The asphalt samples were aged on a Fraass plaque to achieve minimum disturbance of the sample, and the degree aging assessed by change in the Fraass breaking temperature. The asphalt of the study showed that the POB was an effective means of producing measurable changes in both mixtures and asphalt samples.
Effect of Moisture and Aging on Asphalt Pavement Life. Part 2. Effect of Aging
O. K. Kim (author) / C. A. Bell (author) / J. E. Wilson (author) / G. Boyle (author)
1986
78 pages
Report
No indication
English
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