Effects of milling Al(OH)(3) prior to mix with Ca(OH)(2) for a rapid cement hardener

Authors
Kitamura, M Sahara, T Senna, M
Citation
M. Kitamura et al., Effects of milling Al(OH)(3) prior to mix with Ca(OH)(2) for a rapid cement hardener, POWD TECH, 118(3), 2001, pp. 203-208
Citations number
30
Categorie Soggetti
Chemical Engineering
Journal title
POWDER TECHNOLOGY
ISSN journal
00325910 → ACNP
Volume
118
Issue
3
Year of publication
2001
Pages
203 - 208
Database
ISI
SICI code
0032-5910(20010828)118:3<203:EOMAPT>2.0.ZU;2-K
Abstract
Positive effects of milling Al(OH)(3) prior to mix with Ca(OH)(2) are eluci dated to develop a rapid hardener for portland cement. With the hardener th us obtained, compressive strength of portland cement exceeds 5 MPa within 2 h. Rapid formation of calcium aluminate hydrate (CAH) in cement paste is f ound to be a key issue. Milling a mixture of Al(OH)(3) and Ca(OH)(2) in con trast, results in an in situ formation of CAH to decrease considerably the effect of rapid hardening. (C) 2001 Elsevier Science B.V. All rights reserv ed.