Detail publikace

Effect of plasticizing admixtures on the behavior and properties of alkali activated materials

KALINA, L. BÍLEK, V. NOVOTNÝ, R. ŠOUKAL, F.

Originální název

Effect of plasticizing admixtures on the behavior and properties of alkali activated materials

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Plasticizers and superplasticizers has been the one of the most important improvement in concrete technology during the last century. The effect of different types of plasticizing admixtures was widely studied in the ordinary Portland cement (OPC) systems, but much less in the case of the alkali activated systems. The aim of this work is to clarify the efficiency of lignosulfonate based plasticizer and polycarboxylate-based superplasticizer on the behaviour of alkali activated blast furnace slag. The workability, mechanical properties as well as hydration mechanism with different kind of admixtures had been determined. Subsequently, the stability affecting the efficiency of the plasticizing admixtures in a high alkaline environment has been studied using X-ray photoelectron spectroscopy (XPS) to investigate the chemical changes in the structure of plasticizing additives.

Klíčová slova

alkali-activated slag, plasticizer, lignosulfonate, polycarboxylate, XPS

Autoři

KALINA, L.; BÍLEK, V.; NOVOTNÝ, R.; ŠOUKAL, F.

Vydáno

16. 9. 2019

Nakladatel

Research Institute of Binding Materials Prague

Místo

Prague

ISSN

2523-935X

Periodikum

5th International Congress on the Chemistry of Cement (ICCC 2019) Congress proceedings – Papers and Posters Proceedings

Stát

Česká republika

Strany od

-

Strany do

-

Strany počet

7