Detail publikace

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

MERUŇKA, M. ŤAŽKÁ, L. HELA, R.

Originální název

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

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

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

Autoři

MERUŇKA, M.; ŤAŽKÁ, L.; HELA, R.

Vydáno

11. 10. 2021

Nakladatel

Trans Tech Publications

Místo

Switzerland

ISBN

978-3-0357-1870-6

Kniha

Binders, Materials and Technologies in Modern Construction VII

ISSN

1662-9779

Periodikum

Solid State Phenomena

Ročník

325

Stát

Švýcarská konfederace

Strany od

125

Strany do

130

Strany počet

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"
}