Alkali activation of electric arc furnace slag: Mechanical properties and micro analyzes

被引：59

作者：

Ozturk, Murat ^{[1
]}

Bankir, Muzeyyen Balcikanli ^{[1
]}

Bolukbasi, Omer Saltuk ^{[2
]}

Sevim, Umur Korkut ^{[1
]}

机构：

[1] Iskenderun Tech Univ, Dept Civil Engn, Iskenderun, Turkey

[2] Iskenderun Tech Univ, Dept Met & Mat Engn, Iskenderun, Turkey

来源：

JOURNAL OF BUILDING ENGINEERING | 2019年 / 21卷

关键词：

Alkali activation; Sodium concentration; Silicate modulus; Electrical arc furnace slag; Micro structure; MICROSTRUCTURE; STRENGTH; CEMENT;

D O I：

10.1016/j.jobe.2018.10.005

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Research on sustainable concrete has drawn scientist's attentions on industrial by-products and wastes. Thus, consumption of raw materials would be diminished. In this study alkali activation of electric arc furnace slag (EAFS) was studied with a comprehensive test program. Different silicate modulus, sodium concentrations, curing conditions, curing temperatures and relative humidity condition variables were selected. Their effects on mechanical and micro structural behaviors of the mortar were investigated through SEM - XRD analyses. Result of this study, EAFS was activated with sodium hydroxide and sodium silicate solutions. Test results also revealed that increase in relative humidity, curing temperature and curing time had positive effects on strength parameters due to diminishing micro cracks and altering hydration reactions. With the current study utilization of EAFS is thought to be successfully disposed.

引用

页码：97 / 105

页数：9

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