Experimental Study on Bond Strength of Deformed Steel Bars in Recycled Glass Aggregate Concrete

被引：11

作者：

Wang, Fengchi ^{[1
]}

Wu, Xingming ^{[1
]}

Guo, Chao ^{[1
]}

Song, Wen ^{[1
]}

机构：

[1] Shenyang Jianzhu Univ, Sch Civil Engn, 9 Hunnan Rd, Shenyang 110168, Liaoning, Peoples R China

来源：

KSCE JOURNAL OF CIVIL ENGINEERING | 2018年 / 22卷 / 09期

基金：

中国国家自然科学基金;

关键词：

glass aggregate concrete; replacement level; semi beam specimen; bond stress; REINFORCING BARS; WASTE GLASS; FINE AGGREGATE; BEHAVIOR; PERFORMANCE; REPLACEMENT;

D O I：

10.1007/s12205-018-0051-5

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper reports on an investigation of Glass Aggregate (GA) concrete bond behavior. Nine pullout tests were carried out on 16-mm-diameter deformed steel bars eccentrically embedded in GA concrete; rectangular semi beam specimens were designed using equivalent mix proportions with Glass Coarse Aggregate (GCA) and Glass Fine Aggregate (GFA) at replacement levels of 25%, 50%, 75%, and 100%. Analysis of the measured bond-slip relationships indicates mechanisms of bond resistance in the GA similar to Natural Aggregate (NA) concrete and was used to acquire the most accurate and conservative predictions of measured bond strengths. The failure mode of NA and GCA concretes' bonds with rebar is a split failure, whereas the failure mode of GFA concrete's bond with rebar changes from a split to a pullout failure with increasing GFA replacement levels. The normalized ultimate bond strengths of the GFA concretes are higher than those of the GCA concretes and the normalized ultimate bond strengths of GCA concrete and the GA replacement level relationship are almost linear. The test results show that reasonable GFA replacement levels can improve the bond behavior of concrete with steel rebar.

引用

页码：3409 / 3418

页数：10

共 31 条

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