Bond between steel reinforcement bars and Electric Arc Furnace slag concrete

被引：36
|
作者：
Faleschini, Flora [1 ]
Santamaria, Amaia [2 ]
Zanini, Mariano Angelo [1 ]
San Jose, Jose-Tomas [2 ]
Pellegrino, Carlo [1 ]
机构：
[1] Univ Padua, Dept Civil Environm & Architectural Engn, Via F Marzolo 9, I-35131 Padua, Italy
[2] Univ Basque Country, Min Met & Mat Sci Dept, Alameda Urquijo S-N, Bilbao 48013, Spain
来源：
MATERIALS AND STRUCTURES | 2017年 / 50卷 / 03期
关键词：
Bond; EAF slag; Pull-out test; Recycled aggregate concrete; Splitting; HIGH-STRENGTH CONCRETE; RECYCLED AGGREGATE CONCRETE; HIGH-PERFORMANCE CONCRETE; SELF-COMPACTING CONCRETE; EAF SLAG; MECHANICAL-PROPERTIES; BEHAVIOR; DURABILITY; REBARS;
D O I：
10.1617/s11527-017-1038-2
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper deals with the bond between steel reinforcement and recycled aggregate concrete, including Electric arc furnace (EAF) slag as full replacement of natural coarse aggregates. Pull-out tests were carried out according to RILEM standard on specimens made with six concrete mixtures, characterized by different w/c ratios and types of aggregates. Plain and ribbed steel reinforcement bars were used to observe the influence of steel roughness. Experimental bond-slip relationships were analyzed, and results show similar bond mechanisms between the reference and EAF concrete specimens. Significant bond strength enhancement is observed in concretes with low w/c ratio, when EAF slag is used as recycled coarse aggregate. Experimental results in terms of bond strength were also compared to analytical predictions, obtained with empirical formulations.
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收藏
页数：13
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