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Using isothermal calorimetry to predict one day mortar strengths

Frølich, Lasse; Wadsö, Lars LU and Sandberg, Paul LU (2016) In Cement and Concrete Research 88. p.108-113
Abstract

This study investigated whether isothermal calorimetry measurements on cement paste are sufficiently accurate and precise to partially replace compressive strengths measurements on cement mortar as a quality control method at cement production. The study was also designed to provide information on mechanisms that will affect the relationship between heat of hydration and early strength, but not to establish a general empirical relationship. Results show a fairly strong correlation at 24 h between cement paste heat of hydration and mortar compressive strength, and the strength and calorimetry measurements had similar relative repeatability. Isothermal calorimetry may therefore be a viable alternative to early age strength measurements in... (More)

This study investigated whether isothermal calorimetry measurements on cement paste are sufficiently accurate and precise to partially replace compressive strengths measurements on cement mortar as a quality control method at cement production. The study was also designed to provide information on mechanisms that will affect the relationship between heat of hydration and early strength, but not to establish a general empirical relationship. Results show a fairly strong correlation at 24 h between cement paste heat of hydration and mortar compressive strength, and the strength and calorimetry measurements had similar relative repeatability. Isothermal calorimetry may therefore be a viable alternative to early age strength measurements in cement production when allowed by relevant standards.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Cement and Concrete Research
volume
88
pages
6 pages
publisher
Elsevier
external identifiers
  • Scopus:84977261239
  • WOS:000382803300010
ISSN
0008-8846
DOI
10.1016/j.cemconres.2016.06.009
language
English
LU publication?
yes
id
d9ac2763-3c44-4288-bd7a-7149e5e49684
date added to LUP
2016-10-17 08:27:28
date last changed
2017-01-01 08:36:57
@article{d9ac2763-3c44-4288-bd7a-7149e5e49684,
  abstract     = {<p>This study investigated whether isothermal calorimetry measurements on cement paste are sufficiently accurate and precise to partially replace compressive strengths measurements on cement mortar as a quality control method at cement production. The study was also designed to provide information on mechanisms that will affect the relationship between heat of hydration and early strength, but not to establish a general empirical relationship. Results show a fairly strong correlation at 24 h between cement paste heat of hydration and mortar compressive strength, and the strength and calorimetry measurements had similar relative repeatability. Isothermal calorimetry may therefore be a viable alternative to early age strength measurements in cement production when allowed by relevant standards.</p>},
  author       = {Frølich, Lasse and Wadsö, Lars and Sandberg, Paul},
  issn         = {0008-8846},
  language     = {eng},
  month        = {10},
  pages        = {108--113},
  publisher    = {Elsevier},
  series       = {Cement and Concrete Research},
  title        = {Using isothermal calorimetry to predict one day mortar strengths},
  url          = {http://dx.doi.org/10.1016/j.cemconres.2016.06.009},
  volume       = {88},
  year         = {2016},
}