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Published: Građevinar 73 (2021) 2
Paper type: Scientific research paper
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An experimental study of damage characteristics at bond of RC after microwave heating

Yi Wu, Jun Dai, Dongshuo Li, Bailei Shi

Abstract

With an increase in urban construction waste, and in order to find an effective method of microwave-assisted mechanical RC regeneration, thermal damage characteristics of the interfacial bond between steel rebar and concrete after different microwave irradiations are analysed in this paper. The results show that, with an increase in microwave power, the overall failure mode of the specimen changes from splitting failure to pull-out failure. Bond slip curves and the corresponding fitting equations were obtained at various levels of microwave irradiation. By analysing characteristic points of the curve, 3500W was determined as a reasonable irradiation power.

Keywords
microwave irradiation, reinforced concrete, damage, failure characteristics, bond slip curve

HOW TO CITE THIS ARTICLE:

Wu, Y., Dai, J., Li, D., Shi, B.: An experimental study of damage characteristics at bond of RC after microwave heating, GRAĐEVINAR, 73 (2021) 2, pp. 107-117, doi: https://doi.org/10.14256/JCE.2925.2020

OR:

Wu, Y., Dai, J., Li, D., Shi, B. (2021). An experimental study of damage characteristics at bond of RC after microwave heating, GRAĐEVINAR, 73 (2), 107-117, doi: https://doi.org/10.14256/JCE.2925.2020

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This paper is licensed under a Creative Commons Attribution 4.0 International License.
Authors:
wuyi
Yi Wu
Xi'an University of Science and Technology, China
daijun
Jun Dai
Xi'an University of Science and Technology, China
lidongshuo
Dongshuo Li
Xi'an University of Science and Technology, China
shibailei
Bailei Shi
Xi'an University of Science and Technology, China