Detail publikačního výsledku

Effect of a Combination Fly Ash and Shrinkage-Reducing Additives on the Properties of Alkali-Activated Slag-Based Mortars

BÍLEK Jr., V.; KALINA, L.; KOPLÍK, J.; MONČEKOVÁ, M.; NOVOTNÝ, R.

Originální název

Effect of a Combination Fly Ash and Shrinkage-Reducing Additives on the Properties of Alkali-Activated Slag-Based Mortars

Anglický název

Effect of a Combination Fly Ash and Shrinkage-Reducing Additives on the Properties of Alkali-Activated Slag-Based Mortars

Druh

Článek WoS

Originální abstrakt

This study is aimed at reducing the drying shrinkage of alkali-activated slag (AAS) through the use of low-calcium fly ash (FA) and commercially available shrinkage-reducing additives (SRAs) originally developed for OPC-based binders, since there are no such admixtures tailored for AAS systems. Generally, all the SRAs tested are based on modified alcohols. All the mortars were based on slag activated by waterglass, with the water-to-slag ratio equal to 0.40 and the sand-to-binder ratio 2:1. In the first step, the effect of the partial replacement of slag by FA (25, 50 and 75) % of mass fractions on the drying shrinkage and compressive strength was investigated. On the basis of the obtained results a mortar with 50 % FA in the binder was chosen for subsequent experiments, where the influence of three types of SRAs on the drying-shrinkage behaviour was examined.

Anglický abstrakt

This study is aimed at reducing the drying shrinkage of alkali-activated slag (AAS) through the use of low-calcium fly ash (FA) and commercially available shrinkage-reducing additives (SRAs) originally developed for OPC-based binders, since there are no such admixtures tailored for AAS systems. Generally, all the SRAs tested are based on modified alcohols. All the mortars were based on slag activated by waterglass, with the water-to-slag ratio equal to 0.40 and the sand-to-binder ratio 2:1. In the first step, the effect of the partial replacement of slag by FA (25, 50 and 75) % of mass fractions on the drying shrinkage and compressive strength was investigated. On the basis of the obtained results a mortar with 50 % FA in the binder was chosen for subsequent experiments, where the influence of three types of SRAs on the drying-shrinkage behaviour was examined.

Klíčová slova

alkali-activated slag, fly ash, shrinkage reducing additives, shrinkage, strength

Klíčová slova v angličtině

alkali-activated slag, fly ash, shrinkage reducing additives, shrinkage, strength

Autoři

BÍLEK Jr., V.; KALINA, L.; KOPLÍK, J.; MONČEKOVÁ, M.; NOVOTNÝ, R.

Rok RIV

2017

Vydáno

01.09.2016

Nakladatel

Inštitut za kovinske materiale in tehnologije Ljublana

Místo

Ljublana

ISSN

1580-2949

Periodikum

Materiali in Tehnologije

Svazek

50

Číslo

5

Stát

Slovinská republika

Strany od

813

Strany do

817

Strany počet

5

URL

http://mit.imt.si/Revija/izvodi/mit165/bilek_v.pdf

BibTex

@article{BUT129139,
  author="Vlastimil {Bílek} and Lukáš {Kalina} and Jan {Koplík} and Miroslava {Mončeková} and Radoslav {Novotný}",
  title="Effect of a Combination Fly Ash and Shrinkage-Reducing Additives on the Properties of Alkali-Activated Slag-Based Mortars",
  journal="Materiali in Tehnologije",
  year="2016",
  volume="50",
  number="5",
  pages="813--817",
  doi="10.17222/mit.2015.133",
  issn="1580-2949",
  url="http://mit.imt.si/Revija/izvodi/mit165/bilek_v.pdf"
}