外加剂对膨胀充填材料性能的影响

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (5736KB)
Export: BibTeX | EndNote (RIS)

Abstract Backfill mining method is widely used in domestic and foreign metal mines due to its advantages such as high ore recovery rate, small ore loss dilution and effective control of mining site pressure. However, the goaf cannot be fully filled due to the bleeding and sedimentation of the filled filler slurry and the irregular shape of the empty area, which will seriously affect the safety of underground production and the stability of surface structures. In order to solve such problems, this work prepared the active top-up of the expansive filler by adding additives to the slurry, and explores the fluidity, UCS,apparent density and porosity of cemented paste backfill (CPB). The results show that within the range of the amount selected in the experiment, the thickener and foaming agent will reduce the fluidity and apparent density of the slurry. When the thickener content is 0.6%(mass fraction, the same below), the UCS content reaches a maximum 1.16 MPa. Foam stabilizer affects the strength of the filler by improving the stability of the bubble. When the content of foam stabilizer is 0.5%—0.7%, the UCS of CPB increases by about 2.7%. The volu-me expansion of the CPB basically stops within 30 min. With foam agent increasing from 1.5% to 3%, the strength(28 d) of CPB decreases by 37.3% and the porosity of CPB increases by 13.9%.

Key words： expansive cemented paste backfill slurry fluidity porosity thickener foam stabilizer

Published: 05 June 2022 Online: 2022-06-08

CLC number:

TD853

Fund:National Natural Science Foundation of China(51774066) and the National Key R & D Program of China(2018YFC0604603).

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YAO Wei
	ZHENG Bokun
	QIU Jingping
	HUANG Tenglong
	YIN Xuyan

Cite this article:

YAO Wei,ZHENG Bokun,QIU Jingping, et al. The Influence of Additives on the Properties of Expansion Filling Materials[J]. Materials Reports, 2022, 36(Z1): 20070045-5.

URL:

http://www.mater-rep.com/EN/ OR http://www.mater-rep.com/EN/Y2022/V36/IZ1/20070045

1 蔡美峰,薛鼎龙,任奋华. 工程科学学报,2019,41(4),417.
2 冯帆.岩石力学与工程学报,2019,38(7),1512.
3 靳西传,周宗红,龙刚,等.中国矿业,2019,28(6),104
4 何满潮,谢和平,彭苏萍.岩石力学与工程学报,2005(16),2803.
5 Sellers E J, Klerck P. Tunneling and Underground Space Technology, 2000, 15 (4),463.
6 Sharma R S, Al-Busaidi T S. Engineering Geology, 2001, 60(1-4), 235.
7 杨超,郭利杰,王劼.中国矿业,2019,28(S1),194.
8 谢学斌,李建坤,董宪久,等.岩土力学,2018,39(11),4183.
9 王强,胡世利,邱景平,等.金属矿山,2018(7),50.
10 周乐,许卫军,姚维,等.中国矿业,2019,28(10),138.
11 陆玉根,陈建宏,蒋权,等.矿业研究与开发,2011,31(5),18.
12 Xu S, Suorineni F T, Li K, et al. International Journal of Mining, Reclamation and Environment, 2017, 31(8), 544.
13 胡磊,任高峰,钱兆明,等.金属矿山,2014(11),127.
14 张月侠. 基于膨胀材料的充填接顶技术研究.硕士学位论文,东北大学,2014.
15 Ghasemi Y, Emborg M, Cwirzen A. Materials and Structures, 2019, 52(3), 62.
16 Chen X, Shi X, Zhou J, et al. Construction and Building Materials, 2018, 190(30),211.
17 Fu X, Lai Z, Lai X, et al. Construction and Building Materials,2016,127,712.
18 Tehmina A, Ullah K S, Ahmed M F. The Scientific World Journal, 2014,2014,875082.
19 Sang G, Zhu Y, Yang G, et al. Construction and Building Materials, 2015, 91, 133.
20 雷东移,郭丽萍,孙伟.材料导报:研究篇,2016,30(10),122.
21 左迎峰,王健,肖俊华,等.建筑材料学报,2018,21(3),394.
22 樊丽辉,赵庆国,张君纬,等.河北水利电力学院学报,2019(3),26.
23 Zhao J, Wang X, Peng K, et al. Advances in Materials Science and Engineering, 2017, 2017,1 .
24 Falliano D, De Domenico D, Ricciardi G, et al. Construction and Buil-ding Materials, 2018, 165, 735.
25 殷祥男,王长安,王伟智,等.水泥,2019(S1),145.
26 赵金侠,黄亮,谢建和.中国公路学报,2019,32(7),111.