期刊
MATERIALS & DESIGN
卷 86, 期 -, 页码 878-886出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2015.07.077
关键词
Ternary activators; Slag; Taguchi experiment design; Reaction kinetics; FTIR; Compressive strength
资金
- China Scholarship Council [201306950030]
- Rijkswaterstaat Grote Projecten en Onderhoud
- Graniet-Import Benelux
- Kijlstra Betonmortel
- Struyk Verwo
- Attero
- Enci
- Rijkswaterstaat Zee en Delta - District Noord
- Van Gansewinkel Minerals
- BTE
- V.d. Bosch Beton
- Selor
- GMB
- Geochem Research
- Icopal
- BN International
- Eltomation
- Knauf Gips
- Hess AAC Systems
- Kronos
- Joma
- CRH Europe Sustainable Concrete Centre
- CementBetonCentrum
- Heros
- Inashco
This study investigates the reaction kinetics, the reaction products and the compressive strength of slag activated by ternary activators, namely waterglass, sodium hydroxide and sodium carbonate. Nine mixtures are designed by the Taguchi method considering the factors of sodium carbonate content (SCC), water to solid ratio (WSR), waterglass modulus (WGM) and waterglass content (WGC), and the experimental results are evaluated by applying the analysis of variance (ANOVA) method. The results show that ternary activators determine the reaction kinetics, sodium carbonate dominates the gel structure of reaction products, while the waterglass dosage is a determinant of the compressive strength. Based on the analyzed results, an optimal proportion of ternary alkali activators (SCC 4%, WGC 2.5%, WGM 1.1-1.5 and WSR 0.4) is proposed. (C) 2015 Elsevier Ltd. All rights reserved.
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