A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Chemical shrinkage and autogeneous shrinkage of hydrating cement paste
It is well known that the absolute volume of cement plus water decreases with progressive hydration. In this study, chemical shrinkage of cement was calculated from chemical equation of hydration, it was compared with observed one. Definition of chemical shrinkage and autogenous shrinkage was made and relationship between them was clearly described. The observed value of chemical shrinkage coincided well with the theoretical value calculated from chemical equations. If the final chemical shrinkage at 100 % hydration is precisely determined, it becomes possible to predict the degree of hydration of cement at a certain ageby this proposed method. In order to measure chemical shrinkage correctly, it is important to adopt a proper experimental procedure with clear definition of chemical and autogenous shrinkages.
Chemical shrinkage and autogeneous shrinkage of hydrating cement paste
It is well known that the absolute volume of cement plus water decreases with progressive hydration. In this study, chemical shrinkage of cement was calculated from chemical equation of hydration, it was compared with observed one. Definition of chemical shrinkage and autogenous shrinkage was made and relationship between them was clearly described. The observed value of chemical shrinkage coincided well with the theoretical value calculated from chemical equations. If the final chemical shrinkage at 100 % hydration is precisely determined, it becomes possible to predict the degree of hydration of cement at a certain ageby this proposed method. In order to measure chemical shrinkage correctly, it is important to adopt a proper experimental procedure with clear definition of chemical and autogenous shrinkages.
Chemical shrinkage and autogeneous shrinkage of hydrating cement paste
Durch chemische Reaktion bedingte und autogene Schwindung von hydratisierenden Zementpasten
Tazawa, E.i. (author) / Miyazawa, S. (author) / Kasai, T. (author)
Cement and Concrete Research ; 25 ; 288-292
1995
5 Seiten, 4 Bilder, 9 Quellen
Article (Journal)
English
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