The rate dependency of concrete in tension – New data for wet, normal and dry conditions

Issue		DYMAT 2009 Volume 1, 2009 DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading


Page(s)		95 - 101
Section		Experimental Techniques
DOI		http://dx.doi.org/10.1051/dymat/2009013
Published online		15 September 2009

DYMAT 2009 (2009) 95-101
DOI: 10.1051/dymat/2009013

The rate dependency of concrete in tension – New data for wet, normal and dry conditions

J. Weerheijm^{1, 2}, I. Vegt^{1, 2} and K. van Breugel²

¹ TNO Defence Security and Safety, 2280 AA Rijswijk, The Netherlands
² TU-Delft, Civil Engineering and Geosciences, 2260 AA Delft, The Netherlands

Published online: 15 September 2009

Abstract
The rate dependency of concrete in tension is studied in a combined experimental and computational research program. The aim is to develop a physically realistic material model describing the response and failure mechanisms at meso-level. This paper presents the applied experimental techniques and obtained results for three loading rates at three moisture levels for one type of concrete. New and unique data is obtained for (i) the dynamic fracture energy at high loading rates, (ii) the moisture distribution in the gel- and micro pores and its effect on rate dependency and (iii) data on crack distribution and width of the fracture zone which is obtained by microscopic research.

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