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Chemical Shrinkage and Self-Desiccation in Portland Cement Based Mortars.

Persson, Bertil LU (1999) In Concrete Science and Engineering 1(4). p.228-237
Abstract
This article outlines an experimental and numerical study of self-desiccation and chemical shrinkage in Portland cement mortars, with or without silica fume. For this purpose 9 different cement mortars were cast in 90 pycnometers (study of chemical shrinkage and hydration) or 180 glass flasks (study of self-desiccation and hydration). Chemical shrinkage was observed for 14 days and self-desiccation for 70 days. Parallel studies were carried out on evaporable water (only cement mortar with sealed curing) and hydration. The results indicate that silica fume slightly affects the specific volume of the hydrated water. The silica fume also had a substantial (physical) effect on the self-desiccation when used in Portland cement mortars.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
self-desiccation, hydration, chemical shrinkage, Cement
in
Concrete Science and Engineering
volume
1
issue
4
pages
228 - 237
publisher
RILEM
ISSN
1295-2826
language
English
LU publication?
yes
id
084eda1a-b53a-476b-a3f0-76798c0c4a53 (old id 118583)
date added to LUP
2007-07-09 14:35:53
date last changed
2016-09-14 14:39:14
@article{084eda1a-b53a-476b-a3f0-76798c0c4a53,
  abstract     = {This article outlines an experimental and numerical study of self-desiccation and chemical shrinkage in Portland cement mortars, with or without silica fume. For this purpose 9 different cement mortars were cast in 90 pycnometers (study of chemical shrinkage and hydration) or 180 glass flasks (study of self-desiccation and hydration). Chemical shrinkage was observed for 14 days and self-desiccation for 70 days. Parallel studies were carried out on evaporable water (only cement mortar with sealed curing) and hydration. The results indicate that silica fume slightly affects the specific volume of the hydrated water. The silica fume also had a substantial (physical) effect on the self-desiccation when used in Portland cement mortars.},
  author       = {Persson, Bertil},
  issn         = {1295-2826},
  keyword      = {self-desiccation,hydration,chemical shrinkage,Cement},
  language     = {eng},
  number       = {4},
  pages        = {228--237},
  publisher    = {RILEM},
  series       = {Concrete Science and Engineering},
  title        = {Chemical Shrinkage and Self-Desiccation in Portland Cement Based Mortars.},
  volume       = {1},
  year         = {1999},
}