Effect of Diatomite on Properties of Cement- Copper Tailing Powder Cementitious Materials

Fu Xiang; Li Xianglan; Guo Hui; Peng Xiaoying; Liu Fanghua; Feng Shenglei

doi:10.3969/j.issn.1000-6532.2022.03.005

2022 No. 3

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Article navigation > Multipurpose Utilization of Mineral Resources > 2022 > 43(3): 27-31, 69

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Fu Xiang, Li Xianglan, Guo Hui, Peng Xiaoying, Liu Fanghua, Feng Shenglei. Effect of Diatomite on Properties of Cement- Copper Tailing Powder Cementitious Materials[J]. Multipurpose Utilization of Mineral Resources, 2022, 43(3): 27-31, 69. doi: 10.3969/j.issn.1000-6532.2022.03.005

Citation:

Fu Xiang, Li Xianglan, Guo Hui, Peng Xiaoying, Liu Fanghua, Feng Shenglei. Effect of Diatomite on Properties of Cement- Copper Tailing Powder Cementitious Materials[J]. Multipurpose Utilization of Mineral Resources, 2022, 43(3): 27-31, 69. doi: 10.3969/j.issn.1000-6532.2022.03.005

Effect of Diatomite on Properties of Cement- Copper Tailing Powder Cementitious Materials

1.
School of Civil Engineering, Jiangxi University of Technology, Nanchang, Jiangxi, China
2.
Institute of Green Architecture, Jiangxi University of Technology, Nanchang, Jiangxi, China
3.
School of Civil Engineering, Hebei University of Engineering, Handan, Hebei, China

More Information

Corresponding author: Feng Shenglei, 37143565@qq.com

Received Date: 25 April 2020

Publish Date: 25 June 2022

Abstract

Abstract

To overcome the poor mechanical strength of copper tailing powders- Portland cement, diatomite was added into this cementitious system.Diatomite replaced the copper tailing powders- Portland cement with 0.5%, 1.0%, 1.5% and 2.0% in weight.The fluidity, setting time, water absorption, porosity, bulk density, mechanical properties and microscopic properties of the composite cement materials were tested. The results showed that with the increase of the dosage of diatomite, the fluidities of the pastes decrease, the setting time shortens, water absorptions and porosities decrease, bulk densities increase, compressive strength and flexural strength of the mortars increase. After curing for 28 days, the addition of diatomite makes the SiO₂ and Ca(OH)₂ content in the hydration products decrease, the C-S-H (Calcium Silicate Hydrate) gels increase, and the whole is denser.
- Diatomite /
- Copper tailing powder /
- Portland cement /
- Cementitious material /
- Mechanical strength

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References

[1]	刘振宇. 硅藻土-钢渣基复合胶凝材料的制备及机理研究[D]. 邯郸: 河北工程大学, 2019. Google Scholar LIU Z Y. Preparation and characterization of composite cementitious materials based on diatomite [D]. Handan: Hebei University of Engineering, 2019. Google Scholar
[2]	田键, 申盛伟, 叶斌, 等. 铜尾矿资源化利用与处置新工艺[J]. 矿产综合利用, 2016(3):5-9. doi: 10.3969/j.issn.1000-6532.2016.03.002 CrossRef Google Scholar TIAN J, SHEN S W, YE B, et al. New technology for utilization and disposal of copper tailings[J]. Multipurpose Utilization of Mineral Resources, 2016(3):5-9. doi: 10.3969/j.issn.1000-6532.2016.03.002 CrossRef Google Scholar
[3]	陈甲斌, 李瑞军, 余良晖. 铜尾矿资源调查评价方法及其应用[J]. 自然资源学报, 2012, 27(8):1373-1381. doi: 10.11849/zrzyxb.2012.08.011 CrossRef Google Scholar CHEN J B, LI R J, YU L H. Investigation and evaluation method of copper tailings resources and its application[J]. Journal of Natural Resources, 2012, 27(8):1373-1381. doi: 10.11849/zrzyxb.2012.08.011 CrossRef Google Scholar
[4]	宋军伟, 朱街禄, 刘方华, 等. 铜尾矿粉对复合胶凝体系强度和微结构的影响[J]. 建筑材料学报, 2019, 22(6):846-852. doi: 10.3969/j.issn.1007-9629.2019.06.002 CrossRef Google Scholar SONG J W, ZHU J L, LIU F H, et al. Effect of copper-tailing powder on the strength and microstructure of composite cementification system[J]. Journal of Building Materials, 2019, 22(6):846-852. doi: 10.3969/j.issn.1007-9629.2019.06.002 CrossRef Google Scholar
[5]	成奖国. 球磨混合硅藻土/坡缕石的吸附性能研究[J]. 矿产综合利用, 2018(2):130-134. doi: 10.3969/j.issn.1000-6532.2018.02.029 CrossRef Google Scholar CHENG J G. Study on the adsorption performance of mixed diatomite/palozozite by ball mill[J]. Multipurpose Utilization of Mineral Resources, 2018(2):130-134. doi: 10.3969/j.issn.1000-6532.2018.02.029 CrossRef Google Scholar
[6]	Lamastra F R, Mori S, Cherubini V, et al. A new green methodology for surface modification of diatomite filler in elastomers[J]. Materials Chemistry and Physics, 2017, 194:253-260. doi: 10.1016/j.matchemphys.2017.03.050 CrossRef Google Scholar
[7]	任子杰, 高惠民, 柳溪. 硅藻土提纯及制备助滤剂研究进展[J]. 矿产综合利用, 2013(5):9-13+16. Google Scholar REN Z J, GAO H M, LIU X. Research progress of purification of diatomite and preparation of filtration aid[J]. Multipurpose Utilization of Mineral Resources, 2013(5):9-13+16. Google Scholar
[8]	Han L, Li F, Deng X, et al. Foam-gelcasting preparation, microstructure and thermal insulation performance of porous diatomite ceramics with hierarchical pore structures[J]. Journal of the European Ceramic Society, 2017, 37(7):2717-2725. doi: 10.1016/j.jeurceramsoc.2017.02.032 CrossRef Google Scholar
[9]	白春华, 徐志永, 李光辉, 等. 纳米TiO2负载硅藻土及改性研究进展[J]. 矿产综合利用, 2016(6):8-12. doi: 10.3969/j.issn.1000-6532.2016.06.002 CrossRef Google Scholar BAI C H, XU Z Y, LI G H, et al. Research progress of nano-TiO₂ supported diatomite and its modification[J]. Multipurpose Utilization of Mineral Resources, 2016(6):8-12. doi: 10.3969/j.issn.1000-6532.2016.06.002 CrossRef Google Scholar
[10]	Aydin A C, Gül R. Influence of volcanic originated natural materials as additive on the setting time and some mechanical properties of concrete. Construction and Building Materials, 2007(21): 1277-1281. Google Scholar
[11]	罗小宝, 马芹永, 顾皖庆, 等. 硅藻土掺量和硅粉掺量对混凝土抗压强度影响的试验与分析[J]. 科学技术与工程, 2018(18):315-319. Google Scholar LUO X B, MA Q Y, GU W Q, et al. Experimental and analysis of the influence of diatomite and silica powder on the compressive strength of concrete[J]. Science Technology and Engineering, 2018(18):315-319. Google Scholar