An experimental study of damage characteristics at bond of RC after microwave heating

Građevinar

article

Yi Wu¹  Jun Dai¹  Dongshuo Li¹  Bailei Shi¹ 

[1] Xi’an University of Science and Technology, China Faculty of Architecture and Civil Engineering

关键词: microwave irradiation;    reinforced concrete;    damage;    failure characteristics;    bond slip curve;   

DOI  :  10.14256/JCE.2925.2020

学科分类：社会科学、人文和艺术（综合）

来源: Hrvatsko Drustvo Gradevinskih Inzenjera

【 摘 要 】

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.

【 授权许可】

CC BY