کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4913703 1428768 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of corrosion on bond behaviors of rebar embedded in ultra-high toughness cementitious composite
ترجمه فارسی عنوان
اثر خوردگی بر رفتار پیوندی آبرفت تعبیه شده در کامپوزیت سیمان با مقاومت بالا
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
The bond between corroded rebar and ultra-high toughness cementitious composite (UHTCC) is a key factor in the mechanical properties of corroded reinforced concrete members repaired using UHTCC. This paper presents an experimental study on bond behaviors of UHTCC and corroded reinforcement obtained in a concrete environment through central pull-out tests. The experimental results revealed that all the UHTCC specimens failed in pull-out and that almost all showed an apparent average slip plateau. The post-peak bond behavior was improved with an increase in corrosion ratio. The change in bond strength with corrosion ratio is related to bond length. Bond toughness first rose and then decreased with corrosion ratio, but still remained close to that of non-corroded samples at about 15% of corrosion ratio. An empirical model was proposed to predict the bond strength between corroded rebar and UHTCC, and a good agreement was obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 138, 1 May 2017, Pages 141-150
نویسندگان
, , , , ,