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Mechanical Analysis and Asphalt Layer Subdivision of Long Life Asphalt Pavement Structures
Based on asphalt pavement design theory and criterions in China, and referring to successful long life asphalt pavement structures in foreign countries, the stress-strain data in different depths were calculated by using B1SAR3.0 program taking different structures and materials such as structure thickness, modulus and Poisson ratio, etc. The data analysis results show that (1) there is a high compound stress area in depth under surface in asphalt layer which easy to emerge various damages in long life asphalt pavement structures and materials; (2) the maximum tensile strain, which induces surface cracking and bottom fatigue cracking, easily appears in surface or the bottom of asphalt layer. The asphalt layer was subdivided to three layers as wearing course, binding course and sub surface, and each sub divisional layer’s mechanical demands and thickness demands were put forward.
Mechanical Analysis and Asphalt Layer Subdivision of Long Life Asphalt Pavement Structures
Based on asphalt pavement design theory and criterions in China, and referring to successful long life asphalt pavement structures in foreign countries, the stress-strain data in different depths were calculated by using B1SAR3.0 program taking different structures and materials such as structure thickness, modulus and Poisson ratio, etc. The data analysis results show that (1) there is a high compound stress area in depth under surface in asphalt layer which easy to emerge various damages in long life asphalt pavement structures and materials; (2) the maximum tensile strain, which induces surface cracking and bottom fatigue cracking, easily appears in surface or the bottom of asphalt layer. The asphalt layer was subdivided to three layers as wearing course, binding course and sub surface, and each sub divisional layer’s mechanical demands and thickness demands were put forward.
Mechanical Analysis and Asphalt Layer Subdivision of Long Life Asphalt Pavement Structures
Nie, Yihua (author) / Zhang, Qisen (author)
2008-11-14
52008-01-01 pages
Article (Journal)
Electronic Resource
English
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