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VYŠVAŘIL, M. ROVNANÍKOVÁ, M. BAYER, P.
Original Title
Sulfate attack on different types of concrete in media simulating sewer system
Type
journal article in Scopus
Language
English
Original Abstract
This paper is focused on the sulfate attack on fine-grained concrete where the effect of 0.5% sulfuric acid, simulating MICC, and a solution simulating sewage water has been investigated on changes of the pH, content of sulfates and the porosity in various types of concrete. The aim of this study is to compare the changes in different types of concrete during the sulfate attack in two kinds of medium represented the bottom part of pipelines (waste water) and the sewer crown (0.5% H2SO4). It was found, that after 1 year in 0.5% H2SO4, a visible degradation of surface occurs in all investigated types of concrete. Samples over the year in waste water became dark. Concentration of sulfates in all studied types of concrete increased six times at least after one year sulfuric acid attack and also the reduction of the pH of their aqueous leaches was determined. The solution simulating sewage water did not cause such changes.
Keywords
sulfate attack, concrete, sulfuric acid, waste water, pH, sulfates, porosity
Authors
VYŠVAŘIL, M.; ROVNANÍKOVÁ, M.; BAYER, P.
Released
30. 9. 2016
ISBN
1013-9826
Periodical
Key Engineering Materials (print)
Number
714
State
Swiss Confederation
Pages from
122
Pages to
127
Pages count
6
BibTex
@article{BUT128672, author="Martin {Vyšvařil} and Markéta {Rovnaníková} and Patrik {Bayer}", title="Sulfate attack on different types of concrete in media simulating sewer system", journal="Key Engineering Materials (print)", year="2016", number="714", pages="122--127", doi="10.4028/www.scientific.net/KEM.714", issn="1013-9826" }