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Influence of cement and admixture on autogenous shrinkage of cement paste

โœ Scribed by Ei-ichi Tazawa; Shingo Miyazawa


Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
416 KB
Volume
25
Category
Article
ISSN
0008-8846

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๐Ÿ“œ SIMILAR VOLUMES


Chemical shrinkage and autogenous shrink
โœ Ei-ichi Tazawa; Shingo Miyazawa; Tetsurou Kasai ๐Ÿ“‚ Article ๐Ÿ“… 1995 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 325 KB

It is well known that the absolute volume of cement plus water decrease 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 an

Hydration kinetics of cement paste conta
โœ M.R. Ismail; S.A.S. El-Hemaly ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 390 KB

The influence of the presence of concrete admixtures on the hydration reaction of cement pastes has been investigated. Two admixtures acting as (1) an accelerator and (2) a retarder, have been added to the cement pastes in various dosages and then cured at different ages between 1 and 28 days in 100

Analyses and models of the autogenous sh
โœ C. Hua; P. Acker; A. Ehrlacher ๐Ÿ“‚ Article ๐Ÿ“… 1995 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 931 KB

After having studied phenomena linked to hydration and self-desiccation, one notes that capillary depression is the main origin of the autogenous shrinkage of hardening cement paste. Based on this mechanism, modelling at macroscopic scale is undertaken for a commonly used cement paste (CPA 55) with

Shrinkage mechanisms of hardened cement
โœ S. Chatterji ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 140 KB

In this paper the authors tried to analyze their drying shrinkage data in terms of the Munich model. They have attributed the shrinkage below 40% RH to a change in the surface free energy (socalled Bangham shrinkage) and the shrinkage above 40% RH to the disjoining pressure. As the authors are propo

Formation of shrinkage cracks in thin sp
โœ S. Chatterji; N. Thaulow; P. Christensen ๐Ÿ“‚ Article ๐Ÿ“… 1981 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 204 KB

Whilst being dried a cement paste is simultaneously subjected to peripherical tensile and radial compressive stresses. This combination may lead to relaxation or cracking. It is a general belief that these macroscopic stresses can be ignored if one uses thin specimens. Fluorescence microscopy of 1.5