Finite Element Stress Computations Applied to Images of Damaged Concrete: A Possible New Diagnostic Tool for Concrete Petrography

Reference: P.E. Stutzman, D.S. Bright, E.J. Garboczi, Proceedings of the Twenty-Third International Conference on Cement Microscopy, April 29-May 4, 2001, Albuquerque, New Mexico, 2001.

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FINITE ELEMENT STRESS COMPUTATIONS APPLIED TO IMAGES OF DAMAGED CONCRETE: A POSSIBLE NEW DIAGNOSTIC TOOL FOR CONCRETE PETROGRAPHY

P.E. Stutzman^a, D.S. Bright^b, and E.J. Garboczi^a

National Institute of Standards and Technology

^{aBuilding Materials and ^bSurface and Microanalysis Science Divisions
Gaithersburg, Maryland 20899 USA

ABSTRACT
Concrete petrography is used to assess damaged concrete in order to
determine the probable mechanism of damage. However, using traditional
petrographic analyses, it is often difficult to say what mechanisms caused the
crack damage, since many deterioration mechanisms produce cracks. This article
describes a hybrid imaging-finite element modelling technique that can be
used to help determine the mechanism of damage in such cases. This
application is intended to assist concrete petrographers in the assessment
of degradation mechanisms.

Introduction
Technique and Example
Discussion
References

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