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环氧薄层铺装材料断裂性能试验研究
引用本文:崔树华,卢钢,方星,磨炼同. 环氧薄层铺装材料断裂性能试验研究[J]. 国外建材科技, 2013, 34(2): 38-42
作者姓名:崔树华  卢钢  方星  磨炼同
作者单位:1. 内蒙古自治区锡林郭勒盟公路工程质量监督站,锡林浩特,026000
2. 通辽市交通规划设计院,通辽,028000
3. 武汉理工大学硅酸盐建筑材料国家重点试验室,武汉,430070
摘    要:主要通过与环氧沥青混凝土、SMA沥青混凝土对比分析,研究不同温度(-10~60℃)下环氧铺装材料的断裂力学性能。采用小梁三点弯曲试验分析温度对上述三种材料弯曲强度、最大弯曲应变、弯曲劲度模量和断裂应变能密度的影响。试验结果表明环氧铺装材料的温度依赖性与SMA沥青混凝土和环氧沥青混凝土相似,其弯曲强度和劲度模量介于环氧沥青混凝土与SMA沥青混凝土之间,但其低温弯曲性能和抗裂纹扩展性能优于上述两种材料。

关 键 词:环氧  薄层铺装  弯曲断裂

Experimental Investigation of Fracture Properties of Thin Epoxy Overlay Materials
CUI Shu-hua , LU Gang , FANG Xing , MO Lian-tong. Experimental Investigation of Fracture Properties of Thin Epoxy Overlay Materials[J]. Science and Technology of Overseas Building Materials, 2013, 34(2): 38-42
Authors:CUI Shu-hua    LU Gang    FANG Xing    MO Lian-tong
Affiliation:1.Inner Mongolia’s Xilingol League Highway Engineering Quality Surveillance Station,XiLinhaote 026000,China; 2.Tongliao Constructions Planning and Desing Institute,Tongliao 028000,China;3.State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China)
Abstract:The fracture properties of thin epoxy overlay materials were investigated by comparison with epoxy asphalt concrete and SMA asphalt concrete at different temperatures ranging from-10 ℃ to 60 ℃.Three-point bending testing was performed and the obtained results on flexural strength,maximum flexural strain,flexural stiffness and strain energy density were investigated.Test results showed that thin epoxy overlay materials have a temperature dependency similar to epoxy asphalt concrete and SMA asphalt concrete.The flexural strength and flexural stiffness are between those of epoxy asphalt concrete and SMA asphalt concrete.However,the low-temperature flexural property and cracking resistance are better compared with the above-mentioned concretes.
Keywords:epoxy  thin overlay  flexural fracture
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