지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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PURPOSES : The objective of this study is to evaluate the bond strength of asphalt emulsions including polymer-modified emulsions for chip seals and fog seals using the bitumen bond strength (BBS) test. METHODS : For the laboratory testing, the Pneumatic Adhesion tensile Testing Instrument(PATTI) device is used to measure the bond strength between the asphalt emulsion and aggregate substrate based on the AASHTO TP-91. In order to conduct all the tests in controled condition, all test procedures are performed in the environmental chamber. The CRS-2L and the SBS CRS-2P emulsions are used as a polymer-modified emulsion, and then unmodified emulsion, the CRS-2, is compared for the evaluation of chip seal performance. For the fog seal performance evaluation, two types of polymer-modified emulsions and one of unmodified emulsion, the CSS-1H, are employed. For chip seal study, the BBS tests are performed at 30, 60, 120, and 240 minutes of curing times with curing and testing temperatures of $15^{\circ}C$, $25^{\circ}C$, and $35^{\circ}C$. The fog seal tests are conducted at 30, 60, 90, 120, 180 minutes, and 24 hours with curing and testing temperatures of $25^{\circ}C$, $30^{\circ}C$, and $35^{\circ}C$. RESULTS AND CONCLUSIONS : Overall, chip seal emulsions and fog seal emulsions show the similar bond strength trend. At the same testing condition, polymer-modified emulsions show better bond strength than unmodified emulsions. Also, there is no significant difference between polymer-modified emulsions. One of important findings is that the most bond strength reaches their final bond strength within one hour of curing time. Therefore, the early curing time plays a vital role in the performance of chip seals and fog seals.
목차
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참고문헌 (9)
참고문헌 신청
American Association of State and Highway Transportation Officials / Standard Test Method of Test for Dertermining Asphalt Binder Strength by Means of the Asphalt Bond Strength (ABS) Test / AASHTO TP:91-11
McLeod, N. W. / 1969 / A General Method of Design for Seal Coats and Surface Treatments / Proceedings of the Association of Asphalt Paving Technologists 38
Gransberg, D. D. / 2005 / Chip Seal Best Practices
Shuler, S. / 1990 / Chip Seal for High Traffic Pavements / Transportation Research Record: Journal of the Transportation Research Board (1259)
California Department of Transportation / 2003 / Maintenance Technical Advisory Guide (TAG). In Caltrans Division of Maintenance
McLeod, N. W. / 1969 / A General Method of Design for Seal Coats and Surface Treatments / Proceedings of the Association of Asphalt Paving Technologists 38
Gransberg, D. D. / 2005 / Chip Seal Best Practices
Shuler, S. / 1990 / Chip Seal for High Traffic Pavements / Transportation Research Record: Journal of the Transportation Research Board (1259)
California Department of Transportation / 2003 / Maintenance Technical Advisory Guide (TAG). In Caltrans Division of Maintenance
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