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

被引：3

作者：

Wu, Yi ^{[1
]}

Dai, Jun ^{[1
]}

Li, Dongshuo ^{[1
]}

Shi, Bailei ^{[1
]}

机构：

[1] Xian Univ Sci & Technol, Fac Architecture & Civil Engn, Xian, Peoples R China

来源：

GRADEVINAR | 2021年 / 73卷 / 02期

基金：

中国国家自然科学基金;

关键词：

microwave irradiation; reinforced concrete; damage; failure characteristics; bond slip curve; REINFORCED-CONCRETE; FINITE-ELEMENT; STRENGTH; TEMPERATURE; REBAR; SLIP; BAR;

D O I：

10.14256/JCE.2925.2020

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

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.

引用

页码：107 / 117

页数：11

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