环境Cl^-浓度对混凝土渗透性试验的影响  

THE INFLUENCE OF ENVIRONMENTAL CHLORIDE ION CONCENTRATION ON THE PERMEABILITY EXPERIMENT OF CONCRETE

作　　者：刘星伟[1,2] 李秋义[1,2] 史迪[1] 赵铁军[1] 

机构地区：[1]青岛理工大学土木工程学院,山东青岛266033 [2]山东省混凝土耐久性重点实验室,山东青岛266033

出　　处：《低温建筑技术》2010年第4期1-3,共3页Low Temperature Architecture Technology

基　　金：国家自然科学基金重点资助项目(50739001)

摘　　要：通过三水平三因素的正交试验,研究了不同掺合料制备的9组不同强度等级混凝土在3%~9%NaCl溶液浓度下RCM的试验结果。研究结果表明:在浓度为3%、5%、7%、9%时,混凝土的氯离子扩散系数DRCM随着NaCl溶液浓度的提高而增加,且9组试验结果的正交分析结果基本一致的。Based on three levels of three factors in orthogonal test,nine groups of concretes with different strength levels have been prepared with different admixtures, DRCM was determined in the 3% - 9% NaC1 solution concentration. The results showed that： in the concentration of 3 %, 5 %,7 % and 9%, the chloride dif- fusion coefficient DRcM increased with NaC1 concentration and 9 groups of orthogonal analysis of test results were basically same.

关 键 词：NaQ浓度 Cl-扩散系数 正交 极差 

分 类 号：TU528.0[建筑科学—建筑技术科学]