contributor author | Hou Lijun;Guo Shang;Zhou Bingxuan;Xu Shilang;Chen Da | |
date accessioned | 2019-02-26T07:46:11Z | |
date available | 2019-02-26T07:46:11Z | |
date issued | 2018 | |
identifier other | %28ASCE%29MT.1943-5533.0002324.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4249239 | |
description abstract | Corroded reinforced concrete (RC) members are repaired using ultrahigh toughness cementitious composite (UHTCC), and the bonding between corroded rebar and UHTCC has a significant effect on the mechanical properties of repaired members. In the present paper, the bond behaviors of UHTCC and corroded reinforcement obtained in a concrete environment were investigated via central pullout tests. Parameters including the corrosion ratio and the ratio of the cover thickness to the rebar diameter (c/d) were varied. The experimental results revealed that, compared with concrete specimens, UHTCC specimens exhibited a higher nominalized bond strength and full bond-slip response with a slip plateau near the peak bond stress. The dependence of the bond strength on the corrosion ratio was correlated with c/d. Furthermore, at the considered corrosion levels, the residual bond strength and the bond toughness of the corroded rebar were higher than that of the noncorroded rebar. A bond-slip constitutive model derived from the existing models was proposed, and the predicted curves provided a reasonable description of the bond characteristics. | |
publisher | American Society of Civil Engineers | |
title | Bond-Slip Behavior of Corroded Rebar Embedded in Ultrahigh Toughness Cementitious Composite | |
type | Journal Paper | |
journal volume | 30 | |
journal issue | 7 | |
journal title | Journal of Materials in Civil Engineering | |
identifier doi | 10.1061/(ASCE)MT.1943-5533.0002324 | |
page | 4018132 | |
tree | Journal of Materials in Civil Engineering:;2018:;Volume ( 030 ):;issue: 007 | |
contenttype | Fulltext | |