This paper presents some recent research on the microstructural development during alkaline activation of slag pastes. Pastes of different slags activated with a range of activators have been prepared and some preliminary results from the study of the pastes activated with sodium hydroxide and water
Hydration of alkali-activated slag: comparison with ordinary Portland cement
β Scribed by Holzer, L.; Figi, R.; Gruskovnjak, A.; Lothenbach, B.; Winnefeld, F.
- Book ID
- 120191724
- Publisher
- Thomas Telford
- Year
- 2006
- Tongue
- English
- Weight
- 928 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0951-7197
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This paper compares three methods for activation of OPC-slag mortars (OSM): (1) prolonged grinding of binders (mechanical method), (2) elevated temperature curing of mortars (thermal method), and (3) use of chemical activators such as NaOH, KOH, and Na 2 SiO 3 , 9.35H 2 O (chemical method). The prop
Although the use of slag has many benefits, its low hydration at early stages causes the strength to be low. Hence, the uses of slag are restricted, even before it needs to be activated. In this investigation, a chemical method was used to activate the ordinary Portland cement-slag mortars (OSM). 37