2004
DOI: 10.1016/j.cemconres.2004.02.015
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Experimental research and prediction of the effect of chemical and biogenic sulfuric acid on different types of commercially produced concrete sewer pipes

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Cited by 216 publications
(108 citation statements)
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“…Research has also shown that the concentration of H 2 S in the moisture film increases as the pH of the mortar lining of the concrete pipe decreases [13]. In the presence of oxygen the H 2 S reacts to form elemental sulfur or partially oxidised sulfur species [4,9,14,21], which can sometimes be seen in the corrosion products deposited on the concrete surface [18].…”
Section: Sulfate Reducing Bacteriamentioning
confidence: 99%
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“…Research has also shown that the concentration of H 2 S in the moisture film increases as the pH of the mortar lining of the concrete pipe decreases [13]. In the presence of oxygen the H 2 S reacts to form elemental sulfur or partially oxidised sulfur species [4,9,14,21], which can sometimes be seen in the corrosion products deposited on the concrete surface [18].…”
Section: Sulfate Reducing Bacteriamentioning
confidence: 99%
“…The dissolution effect of the hydrogen ion and the separate effect of the sulfate ion combine to create an aggressive set of chemical reactions, threatening the stability of a cement matrix. Debate exists however regarding the mechanisms behind chemical and biological sulfuric acid attacks, and resistance to the former does not necessarily result in resistance to the latter [4,9,48]. Explanations centre on the involvement of the sulfuric acid producing bacteria Thiobacillus where Monteny et al [4] claim that it is the moist conditions in the gypsum corrosion front that constitute an excellent breeding ground for the bacteria to thrive.…”
Section: Attack Mechanismsmentioning
confidence: 99%
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