Preparation and Utilization of Ceramsite Made of Low Silica Iron Tailings

Metal Mine ›› 2013, Vol. 42 ›› Issue (09): 163-166.

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Preparation and Utilization of Ceramsite Made of Low Silica Iron Tailings

Wang Demin ^1,2，Lei Guoyuan ^1,2，Song Junping³，Wang Tao3 Liu Bohua³，Luo Wenbin³，Cheng Yijin³，Liu Shu³

1.College of Resources and Environmental Engineering，Wuhan University of Science and Technology；2.Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources，Wuhan University of Science and Technology；3.Wuhan Iron and Steel Group Minerals Co.，Ltd.

Online:2013-09-16 Published:2013-11-22

Abstract

Abstract: Taking a low silicon iron tailings as the main raw material，the paper studies the dosage of iron tailings ceramsite，and investigates the performance of tailings ceramsite in applications as lightweight concrete aggregate.The results showed that: the suitable formula for iron tailings ceramsite is the mass ratio of iron tailings，industrial powdery wastes，and KD is 75∶17∶8，finished ceramsite dosage of 920 kg/m3，cement dosage of 220 kg/m3，water-cement ratio of 0.37 (excluding water for pre-wetting ceramsite).Under the formula above，the iron tailings ceramsite concrete owns the density of 1 200, the compressive strength at LC5.0，which meet the requirement for the Insulation structure of lightweight aggregate concrete in JGJ51-2002 standard.The product owns a good insulation performance.

Key words: Low silica iron tailings, Ceramsite, Concrete

WANG De-Min, LEI Guo-Yuan, SONG Jun-Ping, WANG Tao, LIU Bo-Hua, LUO Wen-Bin, CHENG Yi-Jin, LIU Shu. Preparation and Utilization of Ceramsite Made of Low Silica Iron Tailings[J]. Metal Mine, 2013, 42(09): 163-166.

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