Bond Properties between Concrete and Corrosion-Resistant Reinforcing Steels

被引：13

作者：

Moen, Cristopher D. ^{[1
]}

Sharp, Stephen R. ^{[2
]}

机构：

[1] Virginia Polytech Inst & State Univ, Charles E Via Jr Dept Civil & Environm Engn, Blacksburg, VA 24061 USA

[2] Virginia Ctr Transportat Innovat & Res, Virginia Dept Transportat Res Div, Charlottesville, VA USA

来源：

ACI STRUCTURAL JOURNAL | 2016年 / 113卷 / 02期

关键词：

beam end test; bond strength; bridge deck; corrosion-resistant reinforcement; reinforced concrete; stainless steel;

D O I：

10.14359/51688628

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Bond-slip characteristics of corrosion-resistant reinforcing steel bars embedded in concrete were determined with a beam-end test conducted in accordance with ASTM A944. The reinforcing steel bar types considered included solid stainless steel bars (316LN, N32, and 2205) and Grade 60 carbon steel bar with the exterior surface clad with 316L stainless steel (NX), epoxy-coated steel with a zinc undercoating, high-chromium heat-treated steel, and two control groups of ASTM A615 Grade 60 and Grade 75 steel. Observed beam-end test failure modes were yielding, concrete splitting, and pullout. Key conclusions are that bond strength and stiffness increased with increasing relative rib area, stainless steel had a lower pullout bond stiffness when compared to black ASTM A615 steel, and the presence of an epoxy coating decreased the adhesion strength but did not appreciably affect mechanical load-slip response or peak bond strength.

引用

页码：383 / 392

页数：10

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