Electric arc furnace slag as natural aggregate replacement in concrete production

被引：98

作者：

Monosi, Saveria ^{[1
]}

Ruello, Maria Letizia ^{[1
]}

Sani, Daniela ^{[1
]}

机构：

[1] Univ Politecn Marche, Ancona, Italy

来源：

CEMENT & CONCRETE COMPOSITES | 2016年 / 66卷

关键词：

EAF slag; Mechanical properties; Durability; Substitution; Raw materials; Recycling; STEEL SLAG; EAF SLAG; DURABILITY;

D O I：

10.1016/j.cemconcomp.2015.10.004

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Recycled materials in the building industry represent an attractive alternative to the consumption of natural resources. The paper shows results obtained by adding electric arc furnace slag (EAFs) as partial replacement of natural aggregates in concrete production. EAFs determines a significant increase in the compressive strength of concrete while it does not seem to affect the bending strength and drying shrinkage of cement mixtures. The concrete durability was approached by a careful chemical analysis and microstructural investigation of EAFs. The tendency to deteriorate seems negligible due to a low presence of amorphous and expansive compounds leading to an increase in volume. Moreover, the metals released, compared with the national legislation requirements, meet environmental standards. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：66 / 72

页数：7

共 28 条

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