Title: High-dynamic compressive and tensile strength of specimens made of cementitious materials
Language: English
Authors: Binder, Eva
Reihsner, Roland
Yuan, Yong
Mang, Herbert A. 
Pichler, Bernhard L.A. 
Category: Research Article
Forschungsartikel
Issue Date: 2020
Journal: Cement and Concrete Research
ISSN: 0008-8846
Abstract: 
The strength of specimens made of cementitious materials increases with increasing loading rate. Herein, the
model of Fischer et al. (CCR 58, 2014, 186–200) is revisited in the context of high-dynamic compression and
extended to high-dynamic tension. The model is based on the assumptions (i) that cracking will start if the quasistatic
material strength is reached, and (ii) that the high-dynamic strength gain refers to the increase of the stress
during the failure process of the tested specimen. The model explains the behavior of cylindrical specimens made
of dry cement paste, mortar, and concrete, subjected to high-dynamic compression. It also elucidates the performance
of cylindrical specimens made of dry mortar and concrete, subjected to high-dynamic tension. It is
concluded that the high-dynamic strength gain is a structural effect and that structures will be damaged if the
dynamic stress exceeds the quasi-static strength, no matter how fast the stress is increased and how short the
stress pulse lasts.
Keywords: High-dynamic strength increase; Cement paste; Mortar; Concrete
DOI: 10.1016/j.cemconres.2019.105890
Library ID: AC15573070
URN: urn:nbn:at:at-ubtuw:3-8420
Organisation: E202 - Institut für Mechanik der Werkstoffe und Strukturen 
Publication Type: Article
Artikel
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