A new test procedure for biogenic sulfuric acid corrosion of concrete

被引：0

作者：

Elke Vincke

Steven Verstichel

Joke Monteny

Willy Verstraete

机构：

[1] University of Ghent,Laboratory of Microbial Ecology & Technology, Faculty of Agricultural and Applied Biological Sciences

[2] University of Ghent,Laboratory Magnel for Concrete Research, Department of Structural Engineering

来源：

Biodegradation | 1999年 / 10卷

关键词：

biogenic sulfuric acid corrosion; concrete; sewer systems;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A new test method is described for biogenic sulfuric acid corrosion of concrete, more specifically in sewer con-ditions.The aim of the new test method is the development of an accelerated and reproducible procedure formonitoring the resistance of different types of concrete with regard to biogenic sulfuric acid corrosion. This exper-imentalprocedure reflects worst case conditions by providing besides H2S, also an enrichment of thiobacilli andbiologically produced sulfur. By simulating the cyclic processes occurring in sewer pipes, significant differencesbetween concrete mixtures could be detected after 51 days. Concrete modified by a styrene-acrylic ester polymerdemonstrated a higher resistance against biogenic sulfuric acid attack.

引用

页码：421 / 428

页数：7

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