Potential modification of hydration of alkali activated mixtures from granulated blast furnace slag and fly ash

0379996 - ÚGN 2013 RIV CZ eng J - Journal Article
Tomková, V. - Ovčačík, F. - Vlček, J. - Ovčačíková, H. - Topinková, M. - Vavro, M. - Martinec, Petr
Potential modification of hydration of alkali activated mixtures from granulated blast furnace slag and fly ash.
Ceramics - Silikáty. Roč. 56, č. 2 (2012), s. 168-176. ISSN 0862-5468. E-ISSN 1804-5847
R&D Projects: GA ČR GA106/09/0588
Institutional support: RVO:68145535
Keywords : alkali-activated materials * blast furnace slag * mechanical activation * fly ash
Subject RIV: DD - Geochemistry
Impact factor: 0.418, year: 2012
http://www.ceramics-silikaty.cz/2012/pdf/2012_02_168.pdf

Alkali activated binders (AAB) and composites from suitable latent hydraulic raw materials represent an alternative to materials based on Portland cements. The paper deals with possibilities to influence functional parameters of AAB by setting the mixtures of GBFS and fly ash to the selected chemical composition or by fly ash reactivity change effected by milling. In this way course of hydration process is modified, the alkali activation products phase composition is changed as well as their final characteristic. The amorphous character of the hydration products limits the evaluation of the composition during the massing phase. Part of the study is the search for possibilities of identifying the differences in composition and properties of specially drafted mixtures of original raw materials after their alkali activation.
Permanent Link: http://hdl.handle.net/11104/0007123