CORROSION OF MORTAR BY SULFURIC ACID-EXPERIMENT AND THEORETIC ANALYSIS
A long time immersion test of mortar specimens in dilute sulfuric acid is carried out, in which the specimens with water/cement (w/c) ratios ranging from 0.5 to 0.7 are socked in sulfuric acid with pH value 3.5 and 4.0 for 150 days. pH meter are used to monitor the pH changing of the soak solution. The titrating sulfuric acid with concentration of 0.125 mol/L is added to maintain the original pH value of the solution and then acid consumption of specimens is recorded. Based on concentration boundary layer theory, a theoretical reaction rate model is proposed and whose validity is proved by experiment datum.
sulphuric acid mortar corrosion durability boundary durability
Xuesong ZHANG Zhigang SONG Hongguang MING
College of Architectural Engineering, Kunming University of Science & Technology, China
国际会议
The Second Asia-Pacific Young Researchers and Graduates Symposium(第二届亚太地区结构青年专家研讨会)
杭州
英文
187-195
2010-03-27（万方平台首次上网日期，不代表论文的发表时间）