Open AccessStudy of factors affecting bond behavior between stainless steel rebar and concrete
Author(s) -
Qingfu Li,
Qunhua Xiang,
Jinwei Wang,
Lina Jia
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/780/4/042037
Subject(s) - rebar , materials science , steel bar , ductility (earth science) , bond strength , metallurgy , composite material , corrosion , structural engineering , layer (electronics) , adhesive , engineering , creep
With the improvement of smelting process of stainless steel, stainless steel has great advantages in economy, rigidity and durability, so it has been widely used in recent years. However, the properties of stainless steel rebar are very different from those of traditional steel rebar. The stainless steel rebar has no obvious yield strength, and its ductility is excellent. It is essential to determine whether stainless steel rebar can be used in building structures. The bond behavior between stainless rebar and concrete is the basic issue to study before the application of stainless steel. Therefore, the effects of concrete strength, diameter of reinforcement, relative thickness of protective layer, anchorage length of stainless steel bar and casting method on the bond force between the stainless steel bar and concrete were analyzed through central pulling tests of 39 specimens. The results showed that the stainless steel rebar has high bond force with concrete and the empirical formula of bond force between stainless steel rebar and concrete was established based on the regression analysis of the experimental data.