Benefits of using steel slag in cement clinker production for environmental conservation and economic revenue generation

When steel slag, a by-product of steel making in impurity catching process, is added, the forming process of cement clinker and the major reactions in that process are changed. Since there are dramatic differences between the chemical components and mineral compositions of steel slag and that of natural cement raw materials, the empirical equation for the calculating forming heats of cement clinker made of limestone and clay is no longer applied for those made of steel slag. In this paper, the empirical equation for forming heat calculation of steel slag added cement clinker was promoted, and testified by acid dissolution experiments. Results showed that the change of raw materials had great influence on the forming heat of cement clinker. When the traditional raw materials were replaced with steel slag, the forming heat of cement clinker reduced. Calculating the forming heat by our revised empirical equation can help reduce errors and bring great convenience for the calculation and evaluation of heat efficiency. This research provides theoretical underpinning for the study and calculation of forming heat of steel slag added cement clinker.

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Structure of dodecacalcium potassium fluoride dioxide tetrasilicate bis(sulphate), KF.2[Ca6(SO4)(SiO4)2O]: a fluorine-containig phase encountered in cement clinker production process

Acta Crystallographica Section C Crystal Structure Communications ◽

10.1107/s0108270185005625 ◽

1985 ◽

Vol 41 (6) ◽

pp. 814-816 ◽

Cited By ~ 4

Author(s):

J. Fayos ◽

F. P. Glasser ◽

R. A. Howie ◽

E. Lachowski ◽

M. Perez-Mendez

Keyword(s):

Production Process ◽

Potassium Fluoride ◽

Cement Clinker ◽

Clinker Production

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Study on using steel slag as a raw meal component for cement clinker

2011 International Conference on Materials for Renewable Energy & Environment ◽

10.1109/icmree.2011.5930551 ◽

2011 ◽

Author(s):

Tao Dong ◽

ZhenDong Tao ◽

Chang Qing

Keyword(s):

Steel Slag ◽

Cement Clinker

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The Activation of Steel Slag and its Application in Construction and Building Materials

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.884-885.702 ◽

2014 ◽

Vol 884-885 ◽

pp. 702-705 ◽

Cited By ~ 1

Author(s):

Lan Lan Li ◽

Feng Qing Zhao ◽

Shao Jie Liu

Keyword(s):

Building Materials ◽

Steel Slag ◽

Concrete Block ◽

Cement Clinker ◽

Research Progress ◽

Hydration Reaction ◽

Crude Steel ◽

Volume Stability ◽

Industrial Solid Waste ◽

Combined Use

Steel slag as the discharged residue during steelmaking process is a kind of industrial solid waste, accounting for about 15 to 20 percent of crude steel in production. Steel slag is mainly similar with cement clinker in mineral and chemical composition, and possesses potential hydration reaction activity. The properties of steel slag, the research progress of activation and volume stability were summarized in this paper. Several approaches of steel slag utilization in construction and building materials were introduced. The combined use of various activation methods and proper treatment will increase the volume of steel slag in autoclaved tailings bricks and aerated concrete block.

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Addition of large amount of municipal sewage sludge as raw material in cement clinker production

Environmental Science and Pollution Research ◽

10.1007/s11356-017-9949-6 ◽

2017 ◽

Vol 24 (36) ◽

pp. 27862-27869 ◽

Cited By ~ 5

Author(s):

Minrui Huang ◽

Huajun Feng ◽

Na Li ◽

Dongsheng Shen ◽

Yuyang Zhou ◽

...

Keyword(s):

Sewage Sludge ◽

Raw Material ◽

Cement Clinker ◽

Municipal Sewage ◽

Municipal Sewage Sludge ◽

Clinker Production

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CaF2and CaSO4in white cement clinker production

Advances in Cement Research ◽

10.1680/adcr.1997.9.35.105 ◽

1997 ◽

Vol 9 (35) ◽

pp. 105-113 ◽

Cited By ~ 13

Author(s):

M. T. Blanco-Varela ◽

A. Palomo ◽

F. Puertas ◽

T. Vázquez

Keyword(s):

Cement Clinker ◽

White Cement ◽

Clinker Production

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Utilization of Iron Ore Tailings as Raw Material for Portland Cement Clinker Production

Advances in Materials Science and Engineering ◽

10.1155/2016/1596047 ◽

2016 ◽

Vol 2016 ◽

pp. 1-6 ◽

Cited By ~ 8

Author(s):

Li Luo ◽

Yimin Zhang ◽

Shenxu Bao ◽

Tiejun Chen

Keyword(s):

Portland Cement ◽

Iron Ore ◽

Mechanical Performance ◽

Mineralogical Composition ◽

Cement Industry ◽

Raw Material ◽

Cement Clinker ◽

Iron Ore Tailings ◽

Portland Cement Clinker ◽

Clinker Production

The cement industry has for some time been seeking alternative raw material for the Portland cement clinker production. The aim of this research was to investigate the possibility of utilizing iron ore tailings (IOT) to replace clay as alumina-silicate raw material for the production of Portland cement clinker. For this purpose, two kinds of clinkers were prepared: one was prepared by IOT; the other was prepared by clay as a reference. The reactivity and burnability of raw meal, mineralogical composition and physical properties of clinker, and hydration characteristic of cement were studied by burnability analysis, differential thermal analysis, X-ray diffraction, and hydration analysis. The results showed that the raw meal containing IOT had higher reactivity and burnability than the raw meal containing clay, and the use of IOT did not affect the formation of characteristic mineralogical phases of Portland cement clinker. Furthermore, the physical and mechanical performance of two cement clinkers were similar. In addition, the use of IOT was found to improve the grindability of clinker and lower the hydration heat of Portland cement. These findings suggest that IOT can replace the clay as alumina-silicate raw material for the preparation of Portland cement clinker.

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