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Evaluation of sulfate ions in degrading armed concrete structures of a sewage treatment station: case study

Evaluation of sulfate ions in degrading armed concrete structures of a sewage treatment station:... Concrete is susceptible to attack in places considered aggressive, such as wastewater treatment stations. Sulfate ions attack is very common in these places, resulting in accelerated degradation of the concrete, which can compromise any reinforced concrete structure. In this context, the present research aims to evaluate the pathological manifestations caused by these ions, analyzing the sulfate content in concrete samples taken from a station and their porosity. The result obtained in the sulfate content analysis was an average of 7.84%, values well above the acceptable maximum limit that would be on average 0.5%. In relation to the porosity of the sample, an increase of 10% was observed, on average, considering a sample of reinforced concrete without attack. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Building Pathology and Rehabilitation Springer Journals

Evaluation of sulfate ions in degrading armed concrete structures of a sewage treatment station: case study

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Publisher
Springer Journals
Copyright
Copyright © 2019 by Springer Nature Switzerland AG
Subject
Engineering; Building Repair and Maintenance; Structural Materials; Engineering Thermodynamics, Heat and Mass Transfer; Energy Efficiency; Building Materials
ISSN
2365-3159
eISSN
2365-3167
DOI
10.1007/s41024-019-0056-6
Publisher site
See Article on Publisher Site

Abstract

Concrete is susceptible to attack in places considered aggressive, such as wastewater treatment stations. Sulfate ions attack is very common in these places, resulting in accelerated degradation of the concrete, which can compromise any reinforced concrete structure. In this context, the present research aims to evaluate the pathological manifestations caused by these ions, analyzing the sulfate content in concrete samples taken from a station and their porosity. The result obtained in the sulfate content analysis was an average of 7.84%, values well above the acceptable maximum limit that would be on average 0.5%. In relation to the porosity of the sample, an increase of 10% was observed, on average, considering a sample of reinforced concrete without attack.

Journal

Journal of Building Pathology and Rehabilitation – Springer Journals

Published: Jun 12, 2019

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