Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental Study on APP Modified Asphalt Felt Used as Interlayer between Old Cement Concrete Pavement and Asphalt Overlay
To study the mechanisms and effects of atactic polypropylene (APP) modified asphalt felt preventing crack, which is used as interlayer between old cement concrete pavement and asphalt overlay, authors carried through the tests of level tension, field road, and direct shearing. A new test-bed machine, named level tension for interlayer, was developed, and its mechanical composition and work principle were also set forth. Using the new machine, level tension tests were conducted with APP modified asphalt felt as interlayer materials, which indicated that the test-bed has favorable mechanical behaviors and the felt has better performance to prevent cracks than any other materials. APP modified asphalt felt was applied to field road, moreover, its favorable interlayer bonding and working performances were proved by field drill cores. The direct shear tests accounted that the shearing destruction displacement comes to 7.5mm, 3.0mm more than that without the specific interlayer, with the cores from the road. The test results showed that APP modified asphalt felt has good road service performances, with evident effect of anti-cracking when it is used as an interlayer material between asphalt overlay and old cement concrete pavement.
Experimental Study on APP Modified Asphalt Felt Used as Interlayer between Old Cement Concrete Pavement and Asphalt Overlay
To study the mechanisms and effects of atactic polypropylene (APP) modified asphalt felt preventing crack, which is used as interlayer between old cement concrete pavement and asphalt overlay, authors carried through the tests of level tension, field road, and direct shearing. A new test-bed machine, named level tension for interlayer, was developed, and its mechanical composition and work principle were also set forth. Using the new machine, level tension tests were conducted with APP modified asphalt felt as interlayer materials, which indicated that the test-bed has favorable mechanical behaviors and the felt has better performance to prevent cracks than any other materials. APP modified asphalt felt was applied to field road, moreover, its favorable interlayer bonding and working performances were proved by field drill cores. The direct shear tests accounted that the shearing destruction displacement comes to 7.5mm, 3.0mm more than that without the specific interlayer, with the cores from the road. The test results showed that APP modified asphalt felt has good road service performances, with evident effect of anti-cracking when it is used as an interlayer material between asphalt overlay and old cement concrete pavement.
Experimental Study on APP Modified Asphalt Felt Used as Interlayer between Old Cement Concrete Pavement and Asphalt Overlay
Applied Mechanics and Materials ; 193-194 ; 544-547
24.08.2012
4 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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