This study extends previous work and demonstrates that magnetic resonance imaging (MRI) of water allows the internal crack pattern of hardened concrete to be observed along with the internal aggregate structure. The ability to reconstruct three-dimensional images is demonstrated and the importance of image registration is discussed. By using aramid fibre-reinforced plastics (AFRP), it is possible to make reinforced concrete specimens that can be measured by MRI. Plain concrete cylinders and others externally confined by AFRP spirals have been tested in compression and scanned after various amounts of load have been applied to show the progress of fracture development. Samples have also been made with straight AFRP rods cast into the concrete which, when pulled out, give bond failures and internal cracking. It is possible not only to observe the fractures, but also to relate them to the internal concrete structure determined by previous scans of the freshly prepared concrete samples.
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March 2005
Research Article|
March 01 2005
The use of MRI to observe fractures in concrete Available to Purchase
E. Marfisi;
E. Marfisi
*
Department of Engineering, University of Cambridge
Trumpington St, Cambridge CB2 1PZ, UK
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C. J. Burgoyne;
C. J. Burgoyne
*
Department of Engineering, University of Cambridge
Trumpington St, Cambridge CB2 1PZ, UK
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M. H. G. Amin;
M. H. G. Amin
†
Herchel Smith Laboratory for Medicinal Chemistry, University of Cambridge School of Clinical Medicine
Robinson Way, Cambridge CB2 2PZ, UK
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L. D. Hall
L. D. Hall
†
Herchel Smith Laboratory for Medicinal Chemistry, University of Cambridge School of Clinical Medicine
Robinson Way, Cambridge CB2 2PZ, UK
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Publisher: Emerald Publishing
Received:
January 05 2004
Revision Received:
September 09 2004
Accepted:
October 08 2004
Online ISSN: 1751-763X
Print ISSN: 0024-9831
© 2005 Thomas Telford Ltd
2005
Magazine of Concrete Research (2005) 57 (2): 111–121.
Article history
Received:
January 05 2004
Revision Received:
September 09 2004
Accepted:
October 08 2004
Citation
Marfisi E, Burgoyne CJ, Amin MHG, Hall LD (2005), "The use of MRI to observe fractures in concrete". Magazine of Concrete Research, Vol. 57 No. 2 pp. 111–121, doi: https://doi.org/10.1680/macr.2005.57.2.111
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