Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Assessment and prediction of drying shrinkage cracking in bonded mortar overlays
Restrained drying shrinkage cracking was investigated on composite beams consisting of substrate concrete and bonded mortar overlays, and compared to the performance of the same mortars when subjected to the ring test. Stress development and cracking in the composite specimens were analytically modeled and predicted based on the measurement of relevant time-dependent material properties such as drying shrinkage, elastic modulus, tensile relaxation and tensile strength. Overlay cracking in the composite beams could be very well predicted with the analytical model. The ring test provided a useful qualitative comparison of the cracking performance of the mortars. The duration of curing was found to only have a minor influence on crack development. This was ascribed to the fact that prolonged curing has a beneficial effect on tensile strength at the onset of stress development, but is in the same time not beneficial to the values of tensile relaxation and elastic modulus.
Assessment and prediction of drying shrinkage cracking in bonded mortar overlays
Restrained drying shrinkage cracking was investigated on composite beams consisting of substrate concrete and bonded mortar overlays, and compared to the performance of the same mortars when subjected to the ring test. Stress development and cracking in the composite specimens were analytically modeled and predicted based on the measurement of relevant time-dependent material properties such as drying shrinkage, elastic modulus, tensile relaxation and tensile strength. Overlay cracking in the composite beams could be very well predicted with the analytical model. The ring test provided a useful qualitative comparison of the cracking performance of the mortars. The duration of curing was found to only have a minor influence on crack development. This was ascribed to the fact that prolonged curing has a beneficial effect on tensile strength at the onset of stress development, but is in the same time not beneficial to the values of tensile relaxation and elastic modulus.
Assessment and prediction of drying shrinkage cracking in bonded mortar overlays
Beushausen, Hans (Autor:in) / Chilwesa, Masuzyo (Autor:in)
Cement and Concrete Research ; 53 ; 256-266
2013
11 Seiten, 31 Quellen
Aufsatz (Zeitschrift)
Englisch
Assessment and prediction of drying shrinkage cracking in bonded mortar overlays
| Online Contents | 2013
Assessment and prediction of drying shrinkage cracking in bonded mortar overlays
| British Library Online Contents | 2013
Characterisation of differential shrinkage of bonded mortar overlays subjected to drying
Online Contents | 2009
Characterisation of differential shrinkage of bonded mortar overlays subjected to drying
| Springer Verlag | 2009
Characterisation of differential shrinkage of bonded mortar overlays subjected to drying
| British Library Online Contents | 2010