环境温度对聚丙烯酸酯改性混凝土抗压性能的影响  

Influence of ambient temperature on compressive properties of polyacrylate modified concrete

作　　者：张琳 王伯昕[1,2] 耿珺 汤泊洋 崔量轶 郭嘉欢 ZHANG Lin;WANG Boxin;GENG Jun;TANG Boyang;CUI Liangyi;GUO Jiahuan(College of Construction Engineering,Jilin University,Changchun 130021,China;State Key Laboratory of Frozen Soil Engineering,Lanzhou 730000,China)

机构地区：[1]吉林大学建设工程学院,吉林长春130021 [2]冻土工程国家重点实验室,甘肃兰州730000

出　　处：《混凝土》2020年第5期8-11,共4页Concrete

基　　金：国家自然科学基金项目(41430642,51108207);中国博士后科学基金项目(2015M581403);冻土工程国家重点实验室开放基金(SKLFSE201514)。

摘　　要：针对不同环境温度下不同聚合物掺量的聚丙烯酸酯改性混凝土的抗压性能进行了试验研究,获得聚丙烯酸酯改性混凝土在不同条件下的弹性模量、轴心抗压强度,并得到了弹性模量-温度-聚灰比曲面.试验表明,聚丙烯酸酯改性混凝土弹性模量、轴心抗压强度受环境温度的影响较为显著。此外,聚丙烯酸酯的最佳力学性能掺量宜控制在10%左右。Compression tests were conducted under different ambient temperatures to investigate the compressive properties of polymer modified concrete with different polymer content levels.The elastic modulus and axial compressive strength of polyacrylate modified concrete were obtained under different conditions,and the figure of elastic module-ambient temperature-polymer cement ratio was derived from the data.The results show that the elastic modulus and axial compressive strength of polyacrylate modified concrete are affected by ambient temperature more significantly.In addition,the percentage of polyacrylate should be controlled at about 10%for the optimum mechanical properties.

关 键 词：聚合物改性混凝土 力学性能 环境温度 聚灰比 

分 类 号：TU528.064[建筑科学—建筑技术科学]