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Long-term cement hydration studies with isothermal calorimetry

Linderoth, Oskar LU orcid ; Wadsö, Lars LU and Jansen, Daniel (2021) In Cement and Concrete Research 141(March 2021).
Abstract
The purpose of this study was to investigate for how long the thermal power of hydration can be measured with isothermal calorimetry, which is a general measurement technique with stable properties that, in many cases, can detect low rates of processes. Measurements were conducted for 365 days on cement paste with Portland cement, fly ash blended Portland cement and different water-to-binder ratios. The results showed that all the tested systems still produced a measureable signal after one year. The samples with Portland cement were also analyzed by XRD after 365 days, and phase composition calculations were made with GEMS. Together with the calorimetric results, these results were used to determine the degree of hydration by five... (More)
The purpose of this study was to investigate for how long the thermal power of hydration can be measured with isothermal calorimetry, which is a general measurement technique with stable properties that, in many cases, can detect low rates of processes. Measurements were conducted for 365 days on cement paste with Portland cement, fly ash blended Portland cement and different water-to-binder ratios. The results showed that all the tested systems still produced a measureable signal after one year. The samples with Portland cement were also analyzed by XRD after 365 days, and phase composition calculations were made with GEMS. Together with the calorimetric results, these results were used to determine the degree of hydration by five methods, the results of which showed good agreement. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Cement and Concrete Research
volume
141
issue
March 2021
article number
106344
publisher
Elsevier
external identifiers
  • scopus:85098957489
ISSN
0008-8846
DOI
10.1016/j.cemconres.2020.106344
project
Hydration, pore structure, and related moisture properties of fly ash blended cement-based materials
language
English
LU publication?
yes
id
db67aa45-c4af-476b-96fd-ea2dba762192
date added to LUP
2021-01-18 10:47:24
date last changed
2025-04-04 14:42:08
@article{db67aa45-c4af-476b-96fd-ea2dba762192,
  abstract     = {{The purpose of this study was to investigate for how long the thermal power of hydration can be measured with isothermal calorimetry, which is a general measurement technique with stable properties that, in many cases, can detect low rates of processes. Measurements were conducted for 365 days on cement paste with Portland cement, fly ash blended Portland cement and different water-to-binder ratios. The results showed that all the tested systems still produced a measureable signal after one year. The samples with Portland cement were also analyzed by XRD after 365 days, and phase composition calculations were made with GEMS. Together with the calorimetric results, these results were used to determine the degree of hydration by five methods, the results of which showed good agreement.}},
  author       = {{Linderoth, Oskar and Wadsö, Lars and Jansen, Daniel}},
  issn         = {{0008-8846}},
  language     = {{eng}},
  number       = {{March 2021}},
  publisher    = {{Elsevier}},
  series       = {{Cement and Concrete Research}},
  title        = {{Long-term cement hydration studies with isothermal calorimetry}},
  url          = {{http://dx.doi.org/10.1016/j.cemconres.2020.106344}},
  doi          = {{10.1016/j.cemconres.2020.106344}},
  volume       = {{141}},
  year         = {{2021}},
}