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The Influence of Heat and Steam Curing on the Properties of One-Part Fly Ash/Slag Alkali Activated Materials: Preliminary results.
- Source :
- AIP Conference Proceedings; 2019, Vol. 2196 Issue 1, p020038-1-020038-4, 4p
- Publication Year :
- 2019
-
Abstract
- This paper presents the preliminary results of an experimental research on the influence of heat and steam curing on the performances of one-part alkali-activated mortars based on low calcium fly ash (FA) and ground granulated blast furnace slag (GGBFS) with different GGBFS/FA ratios. The mortars were manufactured at equal water to precursor ratio and were activated by sodium silicate, potassium hydroxide and sodium carbonate in powder form. In general, by growing the GGBFS/FA ratio, the workability of fresh mortars decreases and the elasto-mechanical performance increases, independently of curing conditions. The heat and/or steam curing temperatures equal to 40°C or 60°C promote the development of higher early compressive strength respect to standard curing conditions (20°C), especially at high GGBFS/FA ratios, while no advantages were detected at longer ages. [ABSTRACT FROM AUTHOR]
- Subjects :
- FLY ash
SLAG
SOLUBLE glass
HEAT
POTASSIUM hydroxide
SODIUM hydroxide
MORTAR
Subjects
Details
- Language :
- English
- ISSN :
- 0094243X
- Volume :
- 2196
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- AIP Conference Proceedings
- Publication Type :
- Conference
- Accession number :
- 140340220
- Full Text :
- https://doi.org/10.1063/1.5140311