Utilization of steel slag for Portland cement clinker production

被引:477
作者
Tsakiridis, P. E. [1 ]
Papadimitriou, G. D. [1 ]
Tsivilis, S. [2 ]
Koroneos, C. [3 ]
机构
[1] Natl Tech Univ Athens, Sch Mining & Met Engn, Met Phys Lab, GR-15773 Athens, Greece
[2] Natl Tech Univ Athens, Sch Chem Engn, Inorgan & Analyt Chem Lab, GR-15773 Athens, Greece
[3] Aristotle Univ Thessaloniki, Sch Mech Engn, Lab Heat Transfer & Environm Engn, Thessaloniki 54124, Greece
关键词
steel slag; sintering; cement; hydration;
D O I
10.1016/j.jhazmat.2007.07.093
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The aim of the present research work is to investigate the possibility of adding steel slag, a by-product of the conversion of iron to steel process, in the raw meal for the production of Portland cement clinker. Two samples of raw meals were prepared, one with ordinary raw materials, as a reference sample ((PC)(Ref)), and another with 10.5% steel slag ((PC)(s/s)). Both raw meals were sintered at 1450 degrees C. The results of chemical and mineralogical analyses as well as the microscopic examination showed that the use of the steel slag did not affect the mineralogical characteristics of the so produced Portland cement clinker. Furthermore, both clinkers were tested by determining the grindability, setting times, compressive strengths and soundness. The hydration products were examined by XRD analysis at 2, 7, 28 and 90 days. The results of the physico-mechanical tests showed that the addition of the steel slag did not negatively affect the quality of the produced cement. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:805 / 811
页数:7
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