Experimental Study of Cement Mortar Beam Strengthened by SMA Wires

DOI

10.2991/icimm-15.2015.42How to use a DOI?

Keywords

Shape Memory Alloy; High Intelligent Concrete; Heating; Garnet

Abstract

In this study, six highly intelligent reinforced cement mortar (HIRC) test specimens were fabricated by reinforcing the cement mortar with garnet, fiber (nylon and polypropylene), and shape memory alloy (SMA). The objective was to examine the effects of the number and position of the reinforcements on the physical characteristics of the SMA. The SMA-01 and SMA-02 test specimens abruptly failed after their maximum yield strengths were reached, with the latter’s yield strength 54.2% higher than that of the former. In the test specimen with both the garnet and fiber, the yield strength gradually decreased after the maximum yield strength was reached, indicating a very good ductile effect. Under the load, the garnet and fiber first shared the yield strength against the crack resistance and increasing strength, after which the SMA shared the stress to show good structural self-rehabilitation capability. In improving the yield strength and structural self-rehabilitation capability, two or more hybrid fiber, PP and SMA reinforcements, as in SMA-PP-02, SMA-NP-02, and SMA-NP-01, yielded better results than SMA-01, SMA-Ny-01, and SMA-02.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Seung Jo Lee
AU  - Jungmin Park
PY  - 2015/07
DA  - 2015/07
TI  - Experimental Study of Cement Mortar Beam Strengthened by SMA Wires
BT  - Proceedings of the 5th International Conference on Information Engineering for Mechanics and Materials
PB  - Atlantis Press
SP  - 222
EP  - 225
SN  - 2352-5401
UR  - https://doi.org/10.2991/icimm-15.2015.42
DO  - 10.2991/icimm-15.2015.42
ID  - Lee2015/07
ER  -