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Test Procedure for Pavement Crack Fillers
The purpose of the work reported was to investigate test procedures for bond extension tests for pavement crack fillers. A review of existing physical tests for crack fillers indicated a need for other than the standard AASHTO Test T187 and modifications made by researchers to the standard method. Two devices were built to test joints or cracks filled with sealants that have been used to keep water from entering a pavement system through surface cracks. Asphaltic concrete beams 12 x 5 x 3 inches in dimension were grooved and broken, and the grooves filled with sealants to serve as test specimens. The bonded beams were strained with two modes: one, under continuous elongation of the filler until failure occurred, and two, under a repeated tensile-compressive deformation until the joint was failed. Variables to the tests included temperature, dimensions of the groove, and amount of repeated deformation. Test results did not show a particular trend for the slow extensibility as affected by the ratio of width/depth (shape factor) of the joint.
Test Procedure for Pavement Crack Fillers
The purpose of the work reported was to investigate test procedures for bond extension tests for pavement crack fillers. A review of existing physical tests for crack fillers indicated a need for other than the standard AASHTO Test T187 and modifications made by researchers to the standard method. Two devices were built to test joints or cracks filled with sealants that have been used to keep water from entering a pavement system through surface cracks. Asphaltic concrete beams 12 x 5 x 3 inches in dimension were grooved and broken, and the grooves filled with sealants to serve as test specimens. The bonded beams were strained with two modes: one, under continuous elongation of the filler until failure occurred, and two, under a repeated tensile-compressive deformation until the joint was failed. Variables to the tests included temperature, dimensions of the groove, and amount of repeated deformation. Test results did not show a particular trend for the slow extensibility as affected by the ratio of width/depth (shape factor) of the joint.
Test Procedure for Pavement Crack Fillers
R. A. Jimenez (author)
1988
55 pages
Report
No indication
English
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