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Unthermostated multichannel heat conduction calorimeter

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Author

Summary, in English

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.

Publishing year

2004

Language

English

Pages

85-91

Publication/Series

Cement, Concrete, and Aggregates

Volume

26

Issue

2

Document type

Journal article

Publisher

ASTM International

Topic

  • Materials Engineering

Keywords

  • paste
  • cement
  • instrument design
  • calorimetry
  • heat conduction calorimetry
  • mortar
  • admixture
  • retardation

Status

Published

ISBN/ISSN/Other

  • ISSN: 0149-6123