Record details

Title
    Identification of Phase Composition of Binders from Alkali-Activated Mixtures of Granulated Blast Furnace Slag and Fly Ash
Author
    Drongová, L.
    Kukutschová, J.
    Matějka, V.
    Tomková, V.
    Topinková, M.
    Vavro, Martin
    Vlček, J.
Language
    anglicky
Publication type
    článek v odborném periodiku
Source title - serial
    Ceramics - Silikáty
Vol./nr.
    Roč. 58, č. 1
Pages
    s. 79-88
Year
    2014
Notes
    Autoři celkem: 7
    Rozsah: 10 s. : E
Subject category
    alkali activation
    binders
    hydration products
Keyword
    Alkali-Activated
    Ash
    Binders
    Blast
    Composition
    Fly
    Furnace
    Granulated
    Identification
    Mixtures
    Phase
    Slag
Abstract (in english)
   The prepared alkali-activated binders (AAB) and composites using suitable latent hydraulic raw materials represent an alternative to materials based on Portland cements. This paper deals with ways how to influence the functional parameters of AAB by setting up mixtures of granulated blast furnace slag (GBFS) and fly ash with selected chemical compositions. In this way the course of hydration process is modified and the phase composition of products of alkali activation is changed as well as their final properties. The amorphous character of the hydration products makes evaluation of the phase composition of hardened AAB difficult and significantly limits the number of experimental techniques suitable to characterise their phase composition. It was observed that measuring the pH of water extracts obtained from the alkali-activated mixtures can give supplementary information about the process of hardening of alkali-activated mixtures of GBFS and fly ash.
Contributor
    AV ČR Brno, Ústav geoniky
Contributor code
    AV ČR, ÚG
Source format
    U
Import date
    24. 10. 2014