Durability studies on steelmaking slag concretes

被引：84

作者：

Arribas, I. ^{[1
]}

Vegas, I. ^{[1
]}

San-Jose, J. T. ^{[2
]}

Manso, Juan M. ^{[3
]}

机构：

[1] TECNALIA C Geldo, Derio 48160, Spain

[2] Univ Basque Country, Dep Min Met & Mat Sci, Bilbao 48013, Spain

[3] EPS Univ Burgos, Dept Civil Engn, Burgos 09001, Spain

来源：

MATERIALS & DESIGN | 2014年 / 63卷

关键词：

Aggregate-alkaline; Corrosion; Freeze/thaw; Marine environment; Steel slag; Sulfate resistance; STEEL SLAG; FROST-RESISTANCE; FURNACE SLAG; MECHANICAL-PROPERTIES; PORTLAND-CEMENT; SILICA FUME; EAF SLAG; FLY-ASH; MORTARS; WASTE;

D O I：

10.1016/j.matdes.2014.06.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electric-arc furnace slag is proposed as a substitute for the conventional aggregate used in classical structural concrete. In the present research is studied the durability of these slag aggregate concretes and their resistance to both physical (freeze-thaw, high temperature and relative humidity) and chemical degradation (sulfate attack, alkali-aggregate reaction and marine environment), as well as their resistance to the corrosion of steel reinforcement bars (an assessment of the risks of corrosion) embedded in the concrete matrix. This approach requires laboratory studies. The main objective of this work focuses on evaluating the durability of slag concrete under the conditions specified in the Spanish structural concrete code. In general terms, the behavior of the concrete with slag aggregate was similar to or better than the reference concrete (natural aggregate), except in case of exposure to marine environments and seawater, which resulted in quicker chloride penetration. The study confirms the viability of producing steel-reinforced concrete with slag aggregate. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：168 / 176

页数：9

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