Effects of Water Glass Modified Cement on the Performances of Cemented Fine Tailings

Li Ruoyun; Liu Qing; Feng Yanfei; Lyu Xianjun; Wang Junxiang

doi:10.3969/j.issn.1000-6532.2023.06.017

2023 No. 6

Article Contents

Article navigation > Multipurpose Utilization of Mineral Resources > 2023 > 44(6): 114-119

Next Article Previous Article

Li Ruoyun, Liu Qing, Feng Yanfei, Lyu Xianjun, Wang Junxiang. Effects of Water Glass Modified Cement on the Performances of Cemented Fine Tailings[J]. Multipurpose Utilization of Mineral Resources, 2023, 44(6): 114-119. doi: 10.3969/j.issn.1000-6532.2023.06.017

Citation:

Li Ruoyun, Liu Qing, Feng Yanfei, Lyu Xianjun, Wang Junxiang. Effects of Water Glass Modified Cement on the Performances of Cemented Fine Tailings[J]. Multipurpose Utilization of Mineral Resources, 2023, 44(6): 114-119. doi: 10.3969/j.issn.1000-6532.2023.06.017

Effects of Water Glass Modified Cement on the Performances of Cemented Fine Tailings

1.
College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, Shandong, China
2.
Huicheng Environmental Protection Technology Co., Ltd, Qingdao, Shandong, China
3.
Moutai Institute, Zunyi, Guizhou, China

More Information

Corresponding author: Wang Junxiang, wangjunxiang1018@sdust.edu.cn

Received Date: 24 April 2021

Publish Date: 25 December 2023

Abstract

Abstract

This is an essay in the field of ceramics and composites. To study the effect of water glass on the hydration reaction of cement and performances of cemented fine tailings backfilling materials (CTB), compressive strength test, X-ray diffraction (XRD), thermogravimetric (TG), scanning electron microscope (SEM) were used to investigate the effects of water glass dosage on the compressive strength of CTB, hydration products, and microstructure of cement pastes. The results showed that, for a given range, the addition of water glass consumed the Ca(OH)₂ in samples and generated large amounts of calcium silicate hydrate (C-S-H) gels, forming a compact microstructure, which was beneficial for the rapid development of strength. However, the further increase in the water glass dosage did not significantly improve the quantities of C-S-H gels because the Ca(OH)₂ in cement system was completely consumed, leading to a weak enhancement in the strength of CTB.
- Ceramics and composites /
- Cemented tailings backfilling /
- Water glass /
- Compressive strength /
- C-S-H gels

FullText(HTML)

References

[1]	刘俊杰, 梁钰, 曾宇, 等. 利用铁尾矿制备免烧砖的研究[J]. 矿产综合利用, 2020(5):136-141. LIU J J, LIANG Y, ZENG Y, et al. Preparation of baking-free bricks by iron tailings[J]. Multipurpose Utilization of Mineral Resources, 2020(5):136-141. doi: 10.3969/j.issn.1000-6532.2020.05.021 CrossRef Google Scholar LIU J J, LIANG Y, ZENG Y, et al. Preparation of baking-free bricks by iron tailings[J]. Multipurpose Utilization of Mineral Resources, 2020(5): 136-141. doi: 10.3969/j.issn.1000-6532.2020.05.021 CrossRef Google Scholar
[2]	杨晓炳, 王永定, 高谦, 等. 利用脱硫灰渣和粉煤灰开发充填胶凝材料[J]. 矿产综合利用, 2019(4):130-134. YANG X B, WANG Y D, GAO Q, et al. Research on a new cementitious materials with desulphurization ash and fly ash[J]. Multipurpose Utilization of Mineral Resources, 2019(4):130-134. doi: 10.3969/j.issn.1000-6532.2019.04.028 CrossRef Google Scholar YANG X B, WANG Y D, GAO Q, et al. Research on a new cementitious materials with desulphurization ash and fly ash[J]. Multipurpose Utilization of Mineral Resources, 2019(4): 130-134. doi: 10.3969/j.issn.1000-6532.2019.04.028 CrossRef Google Scholar
[3]	CHEN X, SHI X, ZHOU J, et al. Effect of overflow tailings properties on cemented paste backfill[J]. Journal of Environmental Management, 2019, 235:133-144. Google Scholar
[4]	吕宪俊, 金子桥, 胡术刚, 等. 细粒尾矿充填料浆的流变性及充填能力研究[J]. 金属矿山, 2011(5):32-35. LYU X J, JIN Z Q, HU S G, et al. Study on the rheological property and filling capacity of the filling slurry with fine tailings[J]. Metal Mine, 2011(5):32-35. Google Scholar LV X J, JIN Z Q, HU S G, et al. Study on the rheological property and filling capacity of the filling slurry with fine tailings[J]. Metal Mine, 2011(5): 32-35. Google Scholar
[5]	吕生华, 张佳, 殷海荣, 等. 氧化石墨烯调控水化产物增强增韧水泥基复合材料的研究进展[J]. 陕西科技大学学报, 2019, 37(3):136-145. LYU S H, ZHANG J, YIN H R, et al. Research progress of graphene oxide reinforced and toughened cement-based composites[J]. Journal of Shaanxi University of Science and Technology, 2019, 37(3):136-145. doi: 10.3969/j.issn.1000-5811.2019.03.022 CrossRef Google Scholar LV S H, ZHANG J, YIN H R, et al. Research progress of graphene oxide reinforced and toughened cement-based composites[J]. Journal of Shaanxi University of Science and Technology, 2019, 37(3): 136-145. doi: 10.3969/j.issn.1000-5811.2019.03.022 CrossRef Google Scholar
[6]	叶青, 张泽南, 孔德玉, 等. 掺纳米SiO₂和掺硅粉高强混凝土性能的比较[J]. 建筑材料学报, 2003, 6(4):381-385. YE Q, ZHANG Z N, KONG D Y, et al. Comparison of properties of high strength concrete with nano-SiO₂ and silica fume added[J]. Journal of Building Materials, 2003, 6(4):381-385. doi: 10.3969/j.issn.1007-9629.2003.04.008 CrossRef Google Scholar YE Q, ZHANG Z N, KONG D Y, et al. Comparison of properties of high strength concrete with nano-SiO₂ and silica fume added[J]. Journal of Building Materials, 2003, 6(4): 381-385. doi: 10.3969/j.issn.1007-9629.2003.04.008 CrossRef Google Scholar
[7]	刘兵科, 陈城. 超细水泥-水玻璃双液浆的性能研究[J]. 建筑技术, 2018, 49(11):1191-1193. LIU B K, CHEN C. Study on super-fine cement-sodium silicate mortar performance[J]. Architecture Technology, 2018, 49(11):1191-1193. doi: 10.3969/j.issn.1000-4726.2018.11.019 CrossRef Google Scholar LIU B K, CHEN C. Study on super-fine cement-sodium silicate mortar performance[J]. Architecture Technology, 2018, 49(11): 1191-1193. doi: 10.3969/j.issn.1000-4726.2018.11.019 CrossRef Google Scholar
[8]	QIU J P, GUO Z B, YANG L, et al. Effect of tailings fineness on flow, strength, ultrasonic and microstructure characteristics of cemented paste backfill[J]. Construction and Building Materials, 2020, 263:1-10. Google Scholar
[9]	XUE G L, YILMAZ E, SONG W D, et al. Fiber length effect on strength properties of polypropylene fiber reinforced cemented tailings backfill specimens with different sizes[J]. Construction and Building Materials, 2020, 241:1-10. Google Scholar
[10]	ALY M, HASHMIMSJ, OLABIAG, et al. Effect of colloidal nano-silica on the mechanical and physical behaviour of waste-glass cement mortar[J]. Materials and Design, 2012, 33:127-135. doi: 10.1016/j.matdes.2011.07.008 CrossRef Google Scholar
[11]	WANG L G, ZHENG D P, ZHANG S P, et al. Effect of nano-SiO₂ on the hydration and microstructure of Portland cement[J]. Nanomaterials, 2016, 6:1-15. Google Scholar
[12]	叶青, 张泽南, 陈荣升, 等. 纳米SiO₂与水泥硬化浆体中Ca(OH) ₂的反应[J]. 硅酸盐学报, 2003, 5(5):517-522. YE Q, ZHANG Z N, CHEN R S, et al. Reaction of nano-SiO₂ with Ca(OH)₂ in cement pastes[J]. Bulletin of the Chinese Ceramic Society, 2003, 5(5):517-522. doi: 10.3321/j.issn:0454-5648.2003.05.020 CrossRef Google Scholar YE Q, ZHANG Z N, CHEN R S, et al. Reaction of nano-SiO₂ with Ca(OH)₂ in cement pastes[J]. Bulletin of the Chinese Ceramic Society, 2003, 5: 517-522. doi: 10.3321/j.issn:0454-5648.2003.05.020 CrossRef Google Scholar