Structural Engineering Studies on Reinforced Concrete Structure using Neutron Diffraction

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Structural Engineering Studies on Reinforced Concrete Structure using Neutron Diffraction

H. Suzuki, K. Kusunoki, M. Kanematsu, T. Mukai, S. Harjo

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Abstract. It has been demonstrated in our past studies that neutron diffraction can be an alternative method to conventional strain gauges for measuring the stress distribution along rebar embedded in concrete. The current study investigated the possibility of the bond stress evaluation using neutron diffraction in order to find a further capability of neutron diffraction for the structural engineering study on the reinforced concrete structure. Several peaks appeared in the bond stress distribution measured by neutron diffraction, showing the inhomogeneous bond variation along the embedded rebar. This result suggests that the neutron diffraction technique with high spatial resolution makes it possible to investigate local bond resistance caused by the transverse ribs. The bond stress distribution measured by the neutron diffraction technique is expected to bring detailed understanding of the bond mechanism between rebar and concrete for the reinforced concrete structure.

Keywords
Neutron Diffraction, Reinforced Concrete, Transverse Rib, Bond Stress

Published online 12/22/2016, 6 pages
Copyright © 2016 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: H. Suzuki, K. Kusunoki, M. Kanematsu, T. Mukai, S. Harjo, ‘Structural Engineering Studies on Reinforced Concrete Structure using Neutron Diffraction’, Materials Research Proceedings, Vol. 2, pp 25-30, 2017

DOI: http://dx.doi.org/10.21741/9781945291173-5

The article was published as article 5 of the book Residual Stresses 2016

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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