Detail publikačního výsledku

Sulfate attack on different types of concrete in media simulating sewer system

VYŠVAŘIL, M.; ROVNANÍKOVÁ, M.; BAYER, P.

Originální název

Sulfate attack on different types of concrete in media simulating sewer system

Anglický název

Sulfate attack on different types of concrete in media simulating sewer system

Druh

Článek Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

sulfate attack, concrete, sulfuric acid, waste water, pH, sulfates, porosity

Klíčová slova v angličtině

sulfate attack, concrete, sulfuric acid, waste water, pH, sulfates, porosity

Autoři

VYŠVAŘIL, M.; ROVNANÍKOVÁ, M.; BAYER, P.

Rok RIV

2017

Vydáno

30.09.2016

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Číslo

714

Stát

Švýcarská konfederace

Strany od

122

Strany do

127

Strany počet

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"
}