Reactivity of blast-furnace slag in Portland cement blends hydrated under different conditions

Citation
Ji. Escalante et al., Reactivity of blast-furnace slag in Portland cement blends hydrated under different conditions, CEM CONCR R, 31(10), 2001, pp. 1403-1409
Citations number
20
Categorie Soggetti
Material Science & Engineering
Journal title
CEMENT AND CONCRETE RESEARCH
ISSN journal
00088846 → ACNP
Volume
31
Issue
10
Year of publication
2001
Pages
1403 - 1409
Database
ISI
SICI code
0008-8846(200110)31:10<1403:ROBSIP>2.0.ZU;2-8
Abstract
Pastes of blended cements, with 30% and 50% slag and water:solids ratios (w /s) of 0.50 and 0.35, were hydrated at 10 degreesC, 30 degreesC and 50 degr eesC for up to 6 months. The reactivity of the slag fraction increased with the hydration temperature, w/s ratio and with a reduction of the replaceme nt level of the slag. The more reactive of two slags used was that having t he highest vitreous fraction; its highest degree of reaction observed was 5 0%, at 50 degreesC, 30% slag and w/s ratio of 0.50, while the lowest degree of hydration was approximately 20% at 10 degreesC, 50% slag and w/s ratio of 0.35. (C) 2001 Elsevier Science Ltd. All rights reserved.