Cementing efficiency of electric arc furnace dust in mortars

被引：42
|
作者：
Magalhaes, Margareth da Silva [1 ]
Faleschini, Flora [2 ]
Pellegrino, Carlo [2 ]
Brunelli, Katya [3 ]
机构：
[1] Univ Estado Rio de Janeiro, Dept Civil Construct & Transport, Rua Sao Francisco Xavier 524,5005-A, BR-20550900 Rio De Janeiro, RJ, Brazil
[2] Univ Padua, Dept Civil Environm & Architectural Engn, Via Marzolo 9, I-35131 Padua, Italy
[3] Univ Padua, Dept Ind Engn, Via Marzolo 9, I-35131 Padua, Italy
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 157卷
关键词：
Blended cement; Cementing efficiency; Compressive strength; Electric arc furnace dust; k-Value; Supplementary cementing materials; FLY-ASH; HEAVY-METALS; SILICA FUME; K-VALUE; EAFD; STABILIZATION; CONCRETE; IMMOBILIZATION; PERFORMANCE; DURABILITY;
D O I：
10.1016/j.conbuildmat.2017.09.074
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The aim of this study is to evaluate the cementing efficiency (k-value) of an electric arc furnace dust (EAFD), used in as-received conditions, as a supplementary cementing material (SCM). The investigated variables are the amount of EAFD in the mix, water/binder ratio and curing age. Fifteen mixtures are manufactured to estimate the k-values, both considering compressive and flexural strength. In both cases, k-values depend on replacement percentage, and decrease raising the EAFD content in the mix. Water/binder ratio and hydration time significantly influence EAFD efficiency, too. Additionally, results show that flexural k-values are greater than compressive k-values in the analyzed mortars. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：141 / 150
页数：10
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