Optimization Chemical Composition of the Blast Furnace Slag with Uniform Design

Abstract:

Using the industrial limestone, fly ash and pure chemical reagents as raw materials, the blast furnace slag was prepared in the simulation condition of the actual slag-making process. Using uniform design method, the influence of blast furnace slag composition factors such as quaternary alkalinity, ratio of CaO/MgO and ratio of SiO₂/Al₂O₃ on the glass content of blast furnace slag were studied in the present in investigation, the relationship between glass content and the various factors has been obtained through regression analysis, and the main influence factors and the optimum blast furnace slag compositions been found out. The results showed that, the impact of various factors on the glass content of granulated blast furnace slag was quaternary alkalinity > ratio of SiO₂/Al₂O₃ > ratio of CaO/MgO. According to the significance test of the regression equation and the verification experiment, it was concluded that the optimum compositions of granulated blast furnace slag were: the quaternary alkalinity was 0.85, the ratios of CaO/MgO and SiO₂/Al₂O₃ were 11.5 and 6.5 respectively, and in this condition, the glass content of granulated blast furnace slag reached to 98.47%.

• Periodical: Materials Science Forum (Volumes 743-744)
• Pages: 210-215
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.743-744.210
• Online since: January 2013
• Authors: Hui Wang, Su Ping Cui, Xiao Long Shang
• Keywords: Blast Furnace Slag Composition, Glass Content, Regression Analysis, Uniform Design

References

[1] Xin Ying, Lu Xiaoshu, Investigation and application of comprehensive utilizing the ground granulated blast furnace slag, Journal of Liaoning institute of science and technology. 4 (2006) 37-38.

[2] Jiang Fenghua, Xu Delong, Analysis in materials and phases of hydraulic production of slag cement with high volume slag, Construction conserves energy. 198 (2007) 38-40.

[3] Rafat. Siddique, Ground Granulated Blast Furnace Slag, in: Rafat. Siddique, Waste Materials and By-Products in Concrete, Application of statistics and management, India, 2008, pp.1-39.

DOI: 10.1007/978-3-540-74294-4_1

[4] Rakesh Kumar, Sanjay Kumar, S. Badjena, Hydration of Mechanically Activated Granulated Blast Furnace Slag, Metallurgical and Materials Transactions B. 36B (2005) 873-883.

DOI: 10.1007/s11663-005-0089-x

[5] Sun Peng, Che Yuman, Guo Tianyong, Present Situation and Forecast of Blast Furnace Slag Comprehensive Utilization, Angang Technology. 3 (2008) 6-9.

[6] Hao Hongshun, Xu Lihua, Zhang Zuoshun, Development of Green Inorganic Material from Blast Furnace Slag, Materials Review. 24 (2010) 97-100.

[7] Zhu Xiaoli, Zhou Meiru, Comprehensive utilization of Granulated blast furnace slag, China resources comprehensive utilization. 7 (2005) 8-10.

[8] Quadnin Niua，Naiqinan Feng，JingYang, et al, Eeffct of superfine slag powder on cement properties, Cement and Conceret Research. 32 (2002) 615-621.

DOI: 10.1016/s0008-8846(01)00730-x

[9] Xing Hongwei, Wei Hangyu, Hu Changqing, Discussion about surplus energy recovery of blast furnace slag, Hebei Metallurgy. 4 (2008) 87-89.

[10] Huiting Shen, An overview of recovery of metals from slags, Waste Management. 23 (2003) 933-949.

DOI: 10.1016/s0956-053x(02)00164-2

[11] Xu Yongtong, Ding Yi, Cai Zhangping, Development of Heat Recovery from Blast Furnace Slag Using Dry Granulation Methods, China Metallurgy. 17 (2007) 1-8.

[12] Dr. A. Ehrenberg, Granulated blast furnace slag: reaction potential and production of optimized cements, Cement International. 6 (2008) 90-95.

[13] Heinz-Gunter Smolczyk, Effect of the chemistry of the slag on the strengths of blast furnace cements, Zem. -kalk-Gips. 31 (1978) 294-296.

[14] Fan Lianhua, The Influence of Ground Granulated Blast Furnace Slag on Cement Concrete Performance, Xi An: Xian university of architecture and technology, (2007).

[15] Wan Huiwen, Chen Xuebing, Wang Jun, Influence of the Composition and Structure of Slag on Its Activity, Journal of Wuhan University of Technology. 31 (2009) 101-103.

[16] Sanjay Kumar, Rakesh Kumar, S. P. Mehrotra, Influence of granulated blast furnace slag on the reaction, Structure and properties of fly ash based geopolymer, J Mater Sci. 45 (2010) 607–615.

DOI: 10.1007/s10853-009-3934-5

[17] Fang Kaitai, Uniform design and application, Application of statistics and management. 1 (1994) 57-63.

[18] Li Zhixi, Du Shuangkui, Optimization of experimental design and statistical analysis, Science Press, Bei Jing, (2010).

[19] Pan Lijun, Chen Jinquan, Experimental design and data processing, Southeast university press, Nan Jing, (2008).