Publication detail

The Influence of Shrinkage-Reducing Additives on Volume Changes and Mechanical Parameters of a Concrete Composite

MERUŇKA, M. ŤAŽKÁ, L. HELA, R.

Original Title

The Influence of Shrinkage-Reducing Additives on Volume Changes and Mechanical Parameters of a Concrete Composite

Type

conference paper

Language

English

Original Abstract

Cement hydration is a process during which the setting and hardening of cement stone occur. This process is linked to the significant development of heat of hydration, which is accompanied by volume changes of concrete composite (i.e. shrinkage). Due to this, cracks in a concrete composite can arise and influence not only its durability, mechanical parameters or aesthetics but, in the case of water-tight concretes (e.g. the so-called white boxes), also its function. The extent of volume changes can be influenced not only by the composite structure itself or the selection and amount of cement but also by using suitable active additions, e.g. high-temperature fly ash. As a result, it is possible to reduce the amount of cement required while maintaining identical mechanical parameters of concrete and, at the same time, slow down the progress of heat of hydration during cement hydration. One of the other options to eliminate volume changes in concrete composites is the use of shrinkage-reducing additives (SRA). This article focuses on the SRA influence on volume changes of high-performance concretes and their impact on the development of hydration temperatures and mechanical parameters of composites.

Keywords

Volume changes, shrinkage of concrete, shrinkage-reducing additives, hydration of cement, hydration temperatures

Authors

MERUŇKA, M.; ŤAŽKÁ, L.; HELA, R.

Released

11. 10. 2021

Publisher

Trans Tech Publications

Location

Switzerland

ISBN

978-3-0357-1870-6

Book

Binders, Materials and Technologies in Modern Construction VII

ISBN

1662-9779

Periodical

Solid State Phenomena

Year of study

325

State

Swiss Confederation

Pages from

125

Pages to

130

Pages count

6

URL

https://www.scientific.net/SSP.325.125.pdf

BibTex

@inproceedings{BUT176188,
  author="Milan {Meruňka} and Lucia {Ťažká} and Rudolf {Hela}",
  title="The Influence of Shrinkage-Reducing Additives on Volume Changes
and Mechanical Parameters of a Concrete Composite",
  booktitle="Binders, Materials and Technologies in Modern Construction VII",
  year="2021",
  journal="Solid State Phenomena",
  volume="325",
  pages="125--130",
  publisher="Trans Tech Publications",
  address="Switzerland",
  doi="10.4028/www.scientific.net/SSP.325.125",
  isbn="978-3-0357-1870-6",
  issn="1662-9779",
  url="https://www.scientific.net/SSP.325.125.pdf"
}