A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Influence of cement and admixture on autogeneous shrinkage of cement paste
Autogenous shrinkage has been introduced here, mainly regarding the phenomenology based on experimental data. The simple fact that autogenous shrinkage increases as the water cement ratio decreases indicates that it is a phenomenon totally different from drying shrinkage. Part of normal drying shrinkage is understood as autogenous shrinkage. Though autogenous shrinkage is directly triggered by hydration, it is not correlated with the amount of hardening shrinkage at all. As pointed out above, it seems to be strongly related with the hydration of aluminate phase. This is quite suggestive. In this connection, it should be remembered that the importance of (3CaO)(Al2O3) was pointed out with regard to the amount of drying shrinkage. The beginning of autogenous shrinkage becomes earlier as the water cement ratio decreases. Meanwhile, the cracks due to thermal stress and plastic shrinkage can hardly be independent of autogenous shrinkage. It is hoped that these problems will be clarified by future study on autogenous shrinkage.
Influence of cement and admixture on autogeneous shrinkage of cement paste
Autogenous shrinkage has been introduced here, mainly regarding the phenomenology based on experimental data. The simple fact that autogenous shrinkage increases as the water cement ratio decreases indicates that it is a phenomenon totally different from drying shrinkage. Part of normal drying shrinkage is understood as autogenous shrinkage. Though autogenous shrinkage is directly triggered by hydration, it is not correlated with the amount of hardening shrinkage at all. As pointed out above, it seems to be strongly related with the hydration of aluminate phase. This is quite suggestive. In this connection, it should be remembered that the importance of (3CaO)(Al2O3) was pointed out with regard to the amount of drying shrinkage. The beginning of autogenous shrinkage becomes earlier as the water cement ratio decreases. Meanwhile, the cracks due to thermal stress and plastic shrinkage can hardly be independent of autogenous shrinkage. It is hoped that these problems will be clarified by future study on autogenous shrinkage.
Influence of cement and admixture on autogeneous shrinkage of cement paste
Einfluß von Zement und Zusatzstoffen auf die autogene Schwindung einer Zementpaste
Tazawa, E.i. (author) / Miyazawa, S. (author)
Cement and Concrete Research ; 25 ; 281-287
1995
7 Seiten, 11 Bilder, 8 Quellen
Article (Journal)
English
Hochofenschlacke , Tonerdezement , Zement , Schwindung , Verformung , Siliciumoxid , Korngröße , Siliciumdioxid , Hydratisieren , hydraulisches Bindemittel , Wasser-Zement-Wert , Tonerdeschmelzbeton , Hochofenzement , Wasserabbinden von Zement , Abbinderegulierer , Erhärten (Zementabbinden) , Mahlfeinheit , Rauminhalt , geometrischer Parameter , Tricalciumaluminat , hydraulischer Zement , Zementpaste , Superplastifizierer
Chemical shrinkage and autogeneous shrinkage of hydrating cement paste
| Tema Archive | 1995
Numerical modelling of autogeneous shrinkage of hardening cement paste
| Tema Archive | 1997
Influence of Cement and Admixture on Autogenous Shrinkage of Cement Paste
| Online Contents | 1995
Influence of Cement and Admixture on Autogenous Shrinkage of Cement Paste
| British Library Online Contents | 1995
Autogeneous shrinkage of CARDIFRC
| British Library Conference Proceedings | 2005