A new test procedure for biogenic sulfuric acid corrosion of concrete

被引：62
作者：
Vincke, E
Verstichel, S
Monteny, J
Verstraete, W
机构：
[1] State Univ Ghent, Fac Agr & Appl Biol Sci, Lab Microbial Ecol & Technol, B-9000 Ghent, Belgium
[2] State Univ Ghent, Dept Struct Engn, Lab Magnel Concrete Res, B-9052 Ghent, Belgium
来源：
BIODEGRADATION | 1999年 / 10卷 / 06期
关键词：
biogenic sulfuric acid corrosion; concrete; sewer systems;
D O I：
10.1023/A:1008309320957
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
A new test method is described for biogenic sulfuric acid corrosion of concrete, more specifically in sewer conditions. The aim of the new test method is the development of an accelerated and reproducible procedure for monitoring the resistance of different types of concrete with regard to biogenic sulfuric acid corrosion. This experimental procedure reflects worst case conditions by providing besides H2S, also an enrichment of thiobacilli and biologically produced sulfur. By simulating the cyclic processes occurring in sewer pipes, significant differences between concrete mixtures could be detected after 51 days. Concrete modified by a styrene-acrylic ester polymer demonstrated a higher resistance against biogenic sulfuric acid attack.
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页码：421 / 428
页数：8
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