摘要
由于具有弹性模量高、稳定性好、强度高等优点,水泥稳定碎石基层被广泛应用于高等級路西工程中,但在高寒地区低温环境下,水泥稳定碎石基层易出现开裂、冻胀等问题,对其性能造成严重影响。基于此,本文从开裂机理、抗裂性能影响因素、冻融损伤机理、抗冻性能影响因素及防治措施等角度入手,对水泥稳定碎石基层性能进行综合评价,并提出目前研究存在的不足及下一步研究重点,以期为高寒地区水泥稳定碎石基层应用与推广捉供有益参考。
Due to the advantages of high elastic modulus,good stability and high strength,cement-stabilized macadam base has been widely used in high grade pavement engineering.However,in the low temperature environment of alpine regions,cement-stabilized macadam base is prone to cracking,frost heaving and other problems,which have a serious impact on its performance.Based on this,in this paper,the crack mechanism,the influence factors of crack resistance,the freeze-thaw damage mechanism,the influence factors of frost resistance and the prevention and treatment measures were discussed.The application status of cement-stabilized macadam base was evaluated and the shortcomings of current research were putted forward,in order to provide useful reference for the research and application of cement-stabilized macadam base in alpine area.
作者
韩龙
张兆华
李世军
Long Han;Zhaohua Zhang;Shijun Li(Qinghai Huangyuan Highway Engineering Construction Co.,Ltd.,Xining 810000,China)
出处
《青海交通科技》
2021年第5期83-89,共7页
Qinghai Transportation Science and Technology
基金
青海省交通科技项目(JG-CM-2021-1)。
关键词
道路工程
水泥稳定碎石
抗裂性能
冻融损伤
综述
cement-stabilized crushed stone
crack resistance
freeze-thaw damage
antifreeze performance
review
