Volume stability of calcium hydroxide in aggressive solutions

Authors
Beaudoin, JJ Catinaud, S Marchand, J
Citation
Jj. Beaudoin et al., Volume stability of calcium hydroxide in aggressive solutions, CEM CONCR R, 31(1), 2001, pp. 149-151
Citations number
10
Categorie Soggetti
Material Science & Engineering
Journal title
CEMENT AND CONCRETE RESEARCH
ISSN journal
00088846 → ACNP
Volume
31
Issue
1
Year of publication
2001
Pages
149 - 151
Database
ISI
SICI code
0008-8846(200101)31:1<149:VSOCHI>2.0.ZU;2-0
Abstract
The role of calcium hydroxide in processes affecting the durability of conc rete exposed to aggressive media was examined. Compacted calcium hydroxide specimens were immersed in various solutions: including MgCl2 and MySO(4) a nd length changes were continuously monitored. The view that the formation of crystalline phases in cement systems is in itself not an a priori condit ion for expansion is discussed. Evidence for a dissolution/precipitation-ba sed expansive mechanism is presented. (C) 2001 Elsevier Science Ltd. All ri ghts reserved.