Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Improvement of Crack Resistance of Slag Concrete by Utilizing High Alite Cement
In this study, microcracks in slag concretes with water-to-binder ratio (w/b) of 0.5 and 0.3 were subjected to temperature regime-simulated steam curing in early ages and were characterized by the combination of acoustic emission (AE) technique and mechanical tests. By using a new-shaped wave-guide, which reduced the distance from cracking points to wave-guide, effect of attenuation in detecting AE signals was significantly mitigated. Due to analysis of AE parameters, crack mode in slag concretes was clarified. The result showed that they were very different in each stage of temperature history and in each type of concrete. This research also revealed the capacity of high alite cement (HAC) in improving resistance against microcracking of slag concrete. However, cracking resistance of HAC slag concrete in case of w/b of 0.3 was higher than that in case of w/b of 0.5.
Improvement of Crack Resistance of Slag Concrete by Utilizing High Alite Cement
In this study, microcracks in slag concretes with water-to-binder ratio (w/b) of 0.5 and 0.3 were subjected to temperature regime-simulated steam curing in early ages and were characterized by the combination of acoustic emission (AE) technique and mechanical tests. By using a new-shaped wave-guide, which reduced the distance from cracking points to wave-guide, effect of attenuation in detecting AE signals was significantly mitigated. Due to analysis of AE parameters, crack mode in slag concretes was clarified. The result showed that they were very different in each stage of temperature history and in each type of concrete. This research also revealed the capacity of high alite cement (HAC) in improving resistance against microcracking of slag concrete. However, cracking resistance of HAC slag concrete in case of w/b of 0.3 was higher than that in case of w/b of 0.5.
Improvement of Crack Resistance of Slag Concrete by Utilizing High Alite Cement
Nam, Huynh Phuong (Autor:in) / Hosoda, Akira (Autor:in)
Ninth International Conference on Creep, Shrinkage, and Durability Mechanics (CONCREEP-9) ; 2013 ; Cambridge, Massachusetts, United States
23.09.2013
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Mechanical properties , Creep , Concrete , Cement , Durability , Cracking , Slag , Shrinkage
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