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Unthermostated multichannel heat conduction calorimeter

Wadsö, Lars LU (2004) In Cement, Concrete, and Aggregates 26(2). p.85-91
Abstract
Heat conduction calorimetry is a convenient method to detect cement-admixture incompatibility. However, such instruments tend to be used mainly in chemical laboratories. This paper presents the design of a simple unthermostated heat conduction calorimeter that can simultaneously monitor the heat production rate in 14 samples of cement paste or mortar. As it is not thermostated, its performance is governed by the ambient temperature stability and the heat capacity balance between each sample and its reference. The paper shows that the instrument can be used to detect cement-admixture incompatibility and to quantify retardation time.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
paste, cement, instrument design, calorimetry, heat conduction calorimetry, mortar, admixture, retardation
in
Cement, Concrete, and Aggregates
volume
26
issue
2
pages
85 - 91
publisher
ASTM International
external identifiers
  • wos:000226328100008
  • scopus:11844251225
ISSN
0149-6123
DOI
10.1520/CCA12313
language
English
LU publication?
yes
id
796d0ccb-3bce-406f-912b-4a19efe04633 (old id 257626)
date added to LUP
2007-11-05 07:32:12
date last changed
2017-07-30 04:29:53
@article{796d0ccb-3bce-406f-912b-4a19efe04633,
  abstract     = {Heat conduction calorimetry is a convenient method to detect cement-admixture incompatibility. However, such instruments tend to be used mainly in chemical laboratories. This paper presents the design of a simple unthermostated heat conduction calorimeter that can simultaneously monitor the heat production rate in 14 samples of cement paste or mortar. As it is not thermostated, its performance is governed by the ambient temperature stability and the heat capacity balance between each sample and its reference. The paper shows that the instrument can be used to detect cement-admixture incompatibility and to quantify retardation time.},
  author       = {Wadsö, Lars},
  issn         = {0149-6123},
  keyword      = {paste,cement,instrument design,calorimetry,heat conduction calorimetry,mortar,admixture,retardation},
  language     = {eng},
  number       = {2},
  pages        = {85--91},
  publisher    = {ASTM International},
  series       = {Cement, Concrete, and Aggregates},
  title        = {Unthermostated multichannel heat conduction calorimeter},
  url          = {http://dx.doi.org/10.1520/CCA12313},
  volume       = {26},
  year         = {2004},
}