Preparation for Ultra-high Strength Concrete with Tailings by Using Micro-ball Effects

Metal Mine ›› 2010, Vol. 39 ›› Issue (12): 162-166.

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Preparation for Ultra-high Strength Concrete with Tailings by Using Micro-ball Effects

Xu Li¹,Wu Hui^2,3,Guo Zhenni^2,3,Zheng Yongchao⁴,Ni Wen^2,3

1.China Electric Power Research Institute；2.University of Science and Technology Beijing；3.Key Laboratory of the Ministry of Education of China for High Efficient Mining and Safety of Metal Mines；4.State Key Laboratory of Solid Waste Utilization in Building Materials

Online:2010-12-15 Published:2010-11-10

Abstract

Abstract: Taking Miyun iron tailings as raw materials，the tailing concrete with ultrahigh strength was prepared by adopting micro-ball effects between different materials in gradient grinding process.The product has good stability and durability and owns total ratio of iron tailings up to 70% in weight，average compressive strength of 109.13 MPa and flexural strength of 15.53 MPa.

Key words: Iron ore tailing, Gradient grinding, Micro-ball effect, Ultra-high strength concrete

XU Li, WU Hui, GUO Zhen-Ni, ZHENG Yong-Chao, NI Wen. Preparation for Ultra-high Strength Concrete with Tailings by Using Micro-ball Effects[J]. Metal Mine, 2010, 39(12): 162-166.

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