Analysis of early-age cracking of cementitious materials by combination of various non destructive testing methods

Author(s): S. Pirskawetz, F. Weise and P. Fontana
Paper category: Conference
Book title: 2nd International Conference on Microstructural-related Durability of Cementitious Composites
Editor(s): Guang Ye, K. van Breugel, Wei Sun and Changwen Miao
Print ISBN: 978-2-35158-129-2
e-ISBN: 978-2-35158-123-0
Publisher: RILEM Publications SARL
Pages: 350 – 359
Total Pages: 10
Language: English

Abstract: High performance concrete shows high proneness to autogenous shrinkage and micro cracking due to the low water-binder-ratio and high content of microsilica. An internal restraint of the shrinkage caused by aggregate and reinforcement presence, or the external restraint due to adjacent structural members, causes high tensile stress development in the concrete matrix. The commonly used existing measurement methods enable characterization of the degree of damage only at discrete points in time. The ongoing research work presented in this paper looks into combining the acoustic emission and ultrasonic measurements with the existing experimental techniques (such as shrinkage, tensile strength development, etc.) to potentially better illustrate crack formation in cementitious matrix.

Online publication: 2012
Publication Type: full_text
Public price (Euros): 0.00