Structural Behaviour and Strength Prediction of Recycled Aggregate Concrete Beams

被引：23
|
作者：
Khan, Asad-ur-Rehman [1 ]
Khan, Muhammad Saad [1 ]
Fareed, Shamsoon [1 ]
Xiao, Jianzhuang [2 ]
机构：
[1] NED Univ Engn & Technol, Karachi, Pakistan
[2] Tongji Univ, Shanghai, Peoples R China
来源：
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING | 2020年 / 45卷 / 05期
关键词：
Recycled aggregate concrete; Shear critical; Flexure critical; MECHANICAL-PROPERTIES;
D O I：
10.1007/s13369-019-04195-w
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
This paper presents an experimental study done on the structural behaviour of recycled aggregate concrete (RAC) beam specimens. Longitudinally reinforced beams with and without transverse reinforcement were tested under two-point bending, at four replacement levels of recycled aggregates (30%, 50%, 70% and 100%). RAC beam specimens exhibited up to 30% higher ultimate deflections and up to 40% lower initial stiffness; however, ultimate load-carrying capacities did not vary significantly. Lastly, different code formulations were used to predict ultimate load-carrying capacities of all beam specimens and were found to be adequate in this regard.
引用
收藏
页码：3611 / 3622
页数：12
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