Conventional Concrete and UHPC Performance–Damage Relationships Identified Using Computed Tomography
Publication: Journal of Engineering Mechanics
Volume 142, Issue 12
Abstract
To make significant advances in concrete engineering, it will be necessary to understand the behavior of cementitious materials at the microscale. To achieve this goal, the nature of damage initiation and growth needs to be understood at very small scales. This research program sought to increase that understanding through the collection of microscale data using X-ray computed tomography (CT). The tensile and compression behavior of both ultra-high performance concrete (UHPC) and conventional concrete were investigated as a part of this program. Relationships were identified between mechanical performance parameters, such as stiffness degradation and work of load, and cracking parameters, such as crack volume and crack surface area, that could be quantified mathematically and implemented into future finite element analysis (FEA) models. The results of this research program have the potential to improve the accuracy and resiliency of numerical models and to provide insight to the materials engineering community concerning the optimal use of UHPC.
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Acknowledgments
This research was funded by the U.S. Army Military Engineering Basic Research (6.1) program under the Material Modeling for Force Protection work package. This work package was directly managed by the U.S. Army Engineer Research and Development Center (ERDC) in Vicksburg, Mississippi.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 142 • Issue 12 • December 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Oct 27, 2015
Accepted: Aug 1, 2016
Published online: Sep 16, 2016
Published in print: Dec 1, 2016
Discussion open until: Feb 16, 2017
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