人民长江Issue(13)：72-74,105,4.
冻融环境下混凝土耐久性试验及寿命预测
Durability test and life prediction of concrete in freezing-thawing circumstance
摘要
Abstract
In order to research the durability of concrete after freezing and thawing, the relative dynamic elastic modulus and compressive strength are taken as two important measurement indexes, and five concrete samples are respectively tested in freez-ing-thawing circumstance according to rapid concrete freezing-thawing cycles test method. Furthermore, the test data are pro-cessed by SPSS. The test and analysis results show that with the increasing times of freezing-thawing, the concrete relative dy-namic elastic modulus loss and compressive strength loss increase. The cycling times of freezing-thawing and relative dynamic e-lastic modulus loss rate has a good power function relationship while the cycles and compressive strength loss rate has a good quadratic function relationship. The greater the water-cement ratio of concrete, the more severe degree of damage with the in-creasing cycles of freezing-thawing.关键词
冻融循环/水灰比/相对动弹性模量/抗压强度Key words
freezing-thawing cycle/water-cement ratio/relative dynamic elastic modulus/compressive strength分类
建筑与水利引用本文复制引用
王丽学,单晓婷..冻融环境下混凝土耐久性试验及寿命预测[J].人民长江,2014,(13):72-74,105,4.基金项目
辽宁省水利科学技术项目“寒冷地区大坝耐久性研究与应用” （）
