Detail publikačního výsledku

Use of fluidized bed combustion fly ash as addition reducing shrinkage of concrete

OSUSKÁ, L.; HELA, R.

Originální název

Use of fluidized bed combustion fly ash as addition reducing shrinkage of concrete

Anglický název

Use of fluidized bed combustion fly ash as addition reducing shrinkage of concrete

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Volumetric changes during ageing belong to natural properties of concrete. These changes, either growing or shrinking, can present a problem, which has to be taken into account during design and realization phases. This phenomenon is influenced by various factors and volumetric changes can be eliminated in many ways. One of the possibilities is setting appropriate combination of input materials and use of special additions and admixtures. This paper focused on verification of the method reducing shrinkage of concrete by means of using high temperature combustion fly ash combined with fluidized bed combustion fly ash as addition. The precondition is growth of new forms, in particular primary ettringite and monosulphate, which form because of the content free lime and sulphates in fluidized fly ash. If these minerals are formed in fresh concrete, they can positive prevent shrinkage without destruction of the composite material.

Anglický abstrakt

Volumetric changes during ageing belong to natural properties of concrete. These changes, either growing or shrinking, can present a problem, which has to be taken into account during design and realization phases. This phenomenon is influenced by various factors and volumetric changes can be eliminated in many ways. One of the possibilities is setting appropriate combination of input materials and use of special additions and admixtures. This paper focused on verification of the method reducing shrinkage of concrete by means of using high temperature combustion fly ash combined with fluidized bed combustion fly ash as addition. The precondition is growth of new forms, in particular primary ettringite and monosulphate, which form because of the content free lime and sulphates in fluidized fly ash. If these minerals are formed in fresh concrete, they can positive prevent shrinkage without destruction of the composite material.

Klíčová slova

Shrinkage, high temperature combustion fly ash, fluidized bed combustion fly ash, addition

Klíčová slova v angličtině

Shrinkage, high temperature combustion fly ash, fluidized bed combustion fly ash, addition

Autoři

OSUSKÁ, L.; HELA, R.

Rok RIV

2017

Vydáno

11.08.2016

Nakladatel

Trans Tech Publication

Místo

Switzerland

Kniha

Binders, Materials and Technologies in Modern Construction II

ISSN

1662-9752

Periodikum

Materials Science Forum

Číslo

865

Stát

Švýcarská konfederace

Strany od

141

Strany do

144

Strany počet

4

URL

http://www.scientific.net/MSF.865.141

BibTex

@inproceedings{BUT122710,
  author="Lucia {Ťažká} and Rudolf {Hela}",
  title="Use of fluidized bed combustion fly ash as addition reducing shrinkage of concrete",
  booktitle="Binders, Materials and Technologies in Modern Construction II",
  year="2016",
  journal="Materials Science Forum",
  number="865",
  pages="141--144",
  publisher="Trans Tech Publication",
  address="Switzerland",
  doi="10.4028/www.scientific.net/MSF.865.141",
  issn="1662-9752",
  url="http://www.scientific.net/MSF.865.141"
}