کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
776153 1463506 2011 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of heating rate on bond failure of rebars into concrete using polymer adhesives to simulate exposure to fire
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Effect of heating rate on bond failure of rebars into concrete using polymer adhesives to simulate exposure to fire
چکیده انگلیسی

The high bonding capacity of polymer adhesives has encouraged their application for anchoring steel bars into concrete for structural purposes. However, high temperatures have the effect of weakening the bond and endangering the construction under a fire situation. This paper evaluates bond resistance to temperature by means of pull-out tests performed with a constant tensile load on the steel bar and a progressive temperature increase of the bond throughout the test until a failure temperature is reached. Two testing programs were performed using separate heating technologies: electric oven and gas furnace, which mainly differ by their heating speed, in order to assess the influence on bond failure at high temperature. The study describes thermal characteristics and phenomena such as vaporization in different concrete zones near the anchor in both of the testing devices (electric and gas).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Adhesion and Adhesives - Volume 31, Issue 8, December 2011, Pages 851–861
نویسندگان
, , , , ,