STUDY OF BELITE STRUCTURE CHANGES INFLUENCED BY POTASSIUM

Fridrichová M.; Dvořák K.; Gazdič D.

Ceramics-Silikáty (Dec 2013)

STUDY OF BELITE STRUCTURE CHANGES INFLUENCED BY POTASSIUM

Fridrichová M.,
Dvořák K.,
Gazdič D.

Affiliations

Fridrichová M.: Brno University of Technology, Faculty of Civil Engineering, Institute of Technology of Building Materials and Components, Veveří 95, 602 00 Brno, Czech Republic
Dvořák K.: Brno University of Technology, Faculty of Civil Engineering, Institute of Technology of Building Materials and Components, Veveří 95, 602 00 Brno, Czech Republic
Gazdič D.: Brno University of Technology, Faculty of Civil Engineering, Institute of Technology of Building Materials and Components, Veveří 95, 602 00 Brno, Czech Republic

Journal volume & issue: Vol. 57, no. 4
pp. 336 – 341

Abstract

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The production of clinker is carried out by burning process of raw material mixture modified by potassium ions in the form of potash (K2CO3). The potash carbonate is dosed in amounts ranging from 0 % to 3 mass %. Potassium ions are involved in clinker creation process and causing microstructure defects. These defects lead to increase of reactivity and thus increase of velocity of hydration process. Due to temperature instability of potassium ions at usual temperature of clinker burning process around 1250°C, temperature regimes of 950 and 1100°C were tested with isothermal times of 1, 3, 5 hours. Phase composition, physico-mechanical properties and hydration process were observed.

Published in Ceramics-Silikáty

ISSN: 0862-5468 (Print); 1804-5847 (Online)
Publisher: University of Chemistry and Technology, Prague
Country of publisher: Czechia
LCC subjects: Technology: Chemical technology: Clay industries. Ceramics. Glass
Website: http://www.ceramics-silikaty.cz/

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