Study on Performance Enhancement Process of Tailings-based Foamed Cement Insulation Material

WEI Weiming; QIU Jianfeng; WANG Lei; TANG Yefeng; HUANG Rongzheng; ZHOU Shaocong

doi:10.13779/j.cnki.issn1001-0076.2021.04.014

2021 Vol. 41, No. 4

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Article navigation > Conservation and Utilization of Mineral Resources > 2021 > 41(4): 119-123

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WEI Weiming, QIU Jianfeng, WANG Lei, TANG Yefeng, HUANG Rongzheng, ZHOU Shaocong. Study on Performance Enhancement Process of Tailings-based Foamed Cement Insulation Material[J]. Conservation and Utilization of Mineral Resources, 2021, 41(4): 119-123. doi: 10.13779/j.cnki.issn1001-0076.2021.04.014

Citation:

WEI Weiming, QIU Jianfeng, WANG Lei, TANG Yefeng, HUANG Rongzheng, ZHOU Shaocong. Study on Performance Enhancement Process of Tailings-based Foamed Cement Insulation Material[J]. Conservation and Utilization of Mineral Resources, 2021, 41(4): 119-123. doi: 10.13779/j.cnki.issn1001-0076.2021.04.014

Study on Performance Enhancement Process of Tailings-based Foamed Cement Insulation Material

State Grid Shaoxing Power Supply Company, Shaoxing 312000, Zhejiang, China

Received Date: 06 August 2021

Publish Date: 25 August 2021

Abstract

Abstract

Tailings can be used to make foamed cement insulation materials, which is an efficient means of utilizing tailings in bulk. However, the addition of tailings may have an impact on the overall performance of foamed cement insulation materials. To resolve this problem, mechanical activation of molybdenum tailings improved their volcanic ash activity, and the activated tailings were then used to make foamed cement insulating materials. The compressive strength, flexural strength, thermal conductivity and bubble pore structure of the samples were characterized to investigate the intrinsic relationship between the tailings activity and the thermal and mechanical properties of the material. The results showed that the thermal insulation properties and mechanical properties of foamed cement were enhanced with the increase of tailings activation index. The tailings were ball milled at 220 r/min for 240 min, and the molybdenum tailings activation effect was better, with the best comprehensive performance of the made foamed cement thermal insulation material.
- foamed cement /
- molybdenum tailings /
- mechanical activation

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References

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