Publication detail

Sulfuric acid attack on various types of fine grained concrete

VYŠVAŘIL, M. ROVNANÍKOVÁ, M.

Original Title

Sulfuric acid attack on various types of fine grained concrete

Type

conference paper

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 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.

Keywords

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

Authors

VYŠVAŘIL, M.; ROVNANÍKOVÁ, M.

RIV year

2015

Released

1. 4. 2015

ISBN

978-3-03835-452-9

Book

Binders, Materials and Technologies in Modern Construction

ISBN

1662-8985

Periodical

Advanced Materials Research (online)

Year of study

2015

Number

1100

State

Swiss Confederation

Pages from

101

Pages to

105

Pages count

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"
}