IN-SITU PH VALUE MONITORING SYSTEM OF CONCRETE PORE SOLUTION

摘要：

A new auto-logger system device of Open-circuit potential(OCP) was introduced in thispaper, a method of melt-oxidation at high temperature was adopted to fabricate lr/lrOx pHelectrode, the new auto-logger and in-situ pH value monitoring system for use in cementbased porous materials has been invented and tested in solution and in concrete blocks. Theresults show that the lr/IrOx pH electrode have excellent sensing, which follow the Nernst lawwith good linearity in a pH range from 2.0 to 14.0, and have a good long-term stability inalkaline medium. The pH values of concrete pore solution measured by in-situ monitoringsystem is in good quantitative agreement with that determined by pore solution expressionmethod. The In-situ monitoring system can collect the date and supply useful information todurability evaluation of reinforced concrete.

作者: Huaxin Zhou Jiaping Liu Jianfang Sha Ru Mu

作者单位: Jiangsu Institute of Building Science Co.,Ltd,Nanjing,China Jiangsu Bote New materials Co.,Ltd,Nanjing,China

会议类型: 国际会议

会议名称: 1st International Conference on Microstructure Related Durability of Cementitious Composites(首届与水泥基复合材料耐久性相关的微观结构国际会议)

会议地点: 南京

会议语种:英文

页码: 1431-1438

在线出版日期: 2008-10-13（万方平台首次上网日期，不代表论文的发表时间）