Detail publikace

Sulfuric acid attack on various types of fine grained concrete

VYŠVAŘIL, M. ROVNANÍKOVÁ, M.

Originální název

Sulfuric acid attack on various types of fine grained concrete

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

This paper is focused on the sulfate attack on fine grained concrete where the effect of 0.5% sulfuric acid, simulating biogenic sulfuric acid corrosion, on changes of pH and content of sulfates in various types of concrete has been investigated. After 3 and 6 months of the corrosive treatment, the content of sulfate ions and pH values in several layers of specimens were determined. It was found that the sulfate ions penetrate into concrete to the maximum depth of 20 mm and the pH of the aqueous leaches of particular layers of the samples was reduced to 11.4 at the most. Thus, the conditions for the depassivation of reinforcement were not met. The GL and GBFS concrete samples showed the least changes of their pH and therefore they had the best resistivity to the six months sulfate attack.

Klíčová slova

sulfuric acid, sulfates, pH, ettringite, gypsum, concrete

Autoři

VYŠVAŘIL, M.; ROVNANÍKOVÁ, M.

Rok RIV

2015

Vydáno

1. 4. 2015

ISBN

978-3-03835-452-9

Kniha

Binders, Materials and Technologies in Modern Construction

ISSN

1662-8985

Periodikum

Advanced Materials Research (online)

Ročník

2015

Číslo

1100

Stát

Švýcarská konfederace

Strany od

101

Strany do

105

Strany počet

6

BibTex

@inproceedings{BUT114510,
  author="Martin {Vyšvařil} and Markéta {Rovnaníková}",
  title="Sulfuric acid attack on various types of fine grained concrete",
  booktitle="Binders, Materials and Technologies in Modern Construction",
  year="2015",
  journal="Advanced Materials Research
 (online)",
  volume="2015",
  number="1100",
  pages="101--105",
  doi="10.4028/www.scientific.net/AMR.1100.101",
  isbn="978-3-03835-452-9",
  issn="1662-8985"
}