路基工程Issue(1)：56-59,4.DOI:10.13379/j.issn.1003-8825.2018.01.13
紫外老化对沥青混合料低温性能及力学性能的影响研究
Study on Influence of Ultraviolet Aging on Low Temperature and Mechanical Property of Asphalt Mixture
王立军 1胡耀宗1
作者信息
- 1. 东北林业大学土木工程学院,哈尔滨 150040
- 折叠
摘要
Abstract
In this paper,in order to study the influence of ultraviolet aging on the low temperature and mechanical property of the asphalt mixture,the ultraviolet aging test on the asphalt mixture is simulated artificially.The low temperature tensile resistance of the aged mixture was evaluated by the bending test.The elastic modulus and the Poisson's ratio of the asphalt mixture under different UV irradiation time were obtained by uniaxial compression test.The results show that the tensile resistance property of asphalt mixture decreases with the aging time and is not significantly changed after 110 h of UV aging.The flexural modulus of asphalt mixture is not suitable for evaluating the bending performance of the mixture.The elastic modulus of the asphalt mixture is gradually increasing and the Poisson's ratio does not show obvious regular change.关键词
沥青混合料/紫外老化/弯曲试验/弹性模量Key words
asphalt mixture/UV aging/bending test/elastic modulus分类
交通工程引用本文复制引用
王立军,胡耀宗..紫外老化对沥青混合料低温性能及力学性能的影响研究[J].路基工程,2018,(1):56-59,4.
