Structural Engineering Studies on Reinforced Concrete Structure using Neutron Diffraction
H. Suzuki, K. Kusunoki, M. Kanematsu, T. Mukai, S. Harjodownload PDF
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.
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
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.
 Y. Goto, Cracks formed in concrete around deformed tension bars, ACI Journal, 68 (1971) 244-251.
 A. H. Nilson, Internal measurement of bond slip, J. Am. Concr. Inst., 69 (1979) 439-441.
 R. Tepfers, Cracking of concrete cover along anchored deformed reinforcing bars Magazine of Concrete Research 31 (1979) 3-12.
 M. N. S. Hadi, Bond of high strength concrete with high strength reinforcing steel, The Open Civil Engineering Journal, 2 (2008) 143-147.
 H. Suzuki, M. Kanematsu, K. Kusunoki, Neutron diffraction studies on strain evaluation of rebar in reinforced concrete, Powder Diffraction, 24, Issue S1 (2009) S68-S71.
 K. Kusunoki, K. Kabayama, T. Mukai, Y. Hatanaka, H. Suzuki, A. Tasai, Experimental study on bonding action with neutron diffraction technique, 8CUEE CONFERENCE PROCEEDINGS, (2011) 701-705.
 H. Suzuki, K. Kusunoki, Y. Hatanaka, T. Mukai, A. Tasai, M. Kanematsu, K. Kabayama, S. Harjo, Measuring strain and stress distributions along rebar embedded in concrete using time-of-flight neutron diffraction, Measurement Science and Technology, 25 (2014) 025602.
 H. Suzuki, K. Kusunoki, M. Kanematsu, A. Tasai, Y. Hatanaka, N. Tsuchiya, S.C. Bae, S. Shiroishi, S. Sakurai, T. Kawasaki, S. Harjo, Application of neutron stress measurement to reinforced concrete structure, JPS Conference Proceedings, 8 (2015) 031006.
 F. I. Faiyadh, Bond characteristics of oil saturated concrete, Int. J. Cement Composites and Lightweight Concrete, 7 (1985) 115-131.
 S. W. Lee, K. H. Tan, E. H. Yang, Bond-slip response of reinforcing bars embedded in high performance fiber reinforced cement composites, Int. J. Civil Environmental, Structural, Construction and Architectural Engineering, 9 (2015) 626-631.
 S. Harjo, T. Ito, K. Aizawa, H. Arima, J. Abe, A. Moriai, T. Iwahashi, T. Kamiyama, Current status of engineering materials diffractometer at J-PARC, Materials Science Forum, 681 (2011) 443-448.
 R. Oishi, M. Yonemura, Y. Nishimaki, S. Torii, A. Hoshikawa, T. Ishigaki, T. Morishima, K. Mori, T. Kamiyama, Rietveld analysis software for J-PARC, Nuclear Instruments and Methods, A 600 (2009) 94–96.