IN-SITU PH VALUE MONITORING SYSTEM OF CONCRETE PORE SOLUTION

被引：0

作者：

Zhou, Huaxin ^{[1
]}

Liu, Jiaping ^{[1
]}

Sha, Jianfang ^{[1
]}

Mu, Ru ^{[1
]}

机构：

[1] Jiangsu Inst Bldg Sci Co Ltd, Nanjing, Peoples R China

来源：

MICROSTRUCTURE RELATED DURABILITY OF CEMENTITIOUS COMPOSITES, VOLS 1 AND 2 | 2008年 / 61卷

关键词：

D O I：

暂无

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

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

引用

页码：1431 / +

页数：3

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