Abstract
Different techniques for measuring heat of hydration of cement are discussed, and a sample holder designed specially for measuring isothermal heat of hydration is described. A particular characteristic of the sample holder is the vaccum mixing technique which ensures a momentary and homogeneous mixing of the water and the cement. This enables investigation of the rapid initial cement-water reactions. In addition, measurements at very low watercement ratios are made possible with this technique.
Résumé
On discute des différentes techniques pour mesurer la chaleur d'hydratation du ciment et on décrit un support conçu pour mesurer la chaleur isotherme d'hydratation. Ce support présente une caractérique spécifique qui est la technique de mélange sous vide qui assure un malaxage momentané et homogène de l'eau et du ciment, permettant ainsi l'investigation des réactions initiales ciment-eau. De plus, cette technique rend possible des mesures de la chaleur à de très faibles rapports ciment-eau.
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Freiesleben Hansen, P., Mejlhede Jensen, O. A sample holder for the study of isothermal heat of hydration of cement. Mat. Struct. 31, 133–136 (1998). https://doi.org/10.1007/BF02486476
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DOI: https://doi.org/10.1007/BF02486476