Concrete with EAF steel slag as aggregate: A comprehensive technical and environmental characterisation

被引：113
|
作者：
Rondi, Luca [1 ]
Bregoli, Guido [1 ]
Sorlini, Sabrina [1 ]
Cominoli, Luca [1 ]
Collivignarelli, Carlo [1 ]
Plizzari, Giovanni [1 ]
机构：
[1] Univ Brescia, Dept Civil Engn Architecture Land Environm & Math, Via Branze 43, I-25123 Brescia, Italy
来源：
COMPOSITES PART B-ENGINEERING | 2016年 / 90卷
关键词：
Mechanical properties; Strength; Recycling; ARC FURNACE SLAG; BY-PRODUCTS; MECHANICAL-PROPERTIES; DURABILITY; ASH;
D O I：
10.1016/j.compositesb.2015.12.022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper concerns comprehensive experimental study to evaluate properties and environmental suitability of Electric Arc Furnace (EAF) steel slag as well as mechanical behaviour of concrete designed with 100% of EAF slag as aggregate. Several tests were carried out on samples of fresh and aged slag, as required by standard specifications. In addition, the leaching behaviour and the volumetric stability were investigated. Concrete mixtures were designed with aged slag as aggregate having a diameter up to 31.5 mm. The concrete mechanical properties were then compared with the properties of reference mixtures having only natural aggregates. The concrete with EAF slag showed mechanical properties compatible with their use in civil constructions (compressive strength 35-45 MPa and modulus of elasticity up to 46 GPa). (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：195 / 202
页数：8
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