A Mechanism Study of Loess Reinforcing by Electricity-modified Sodium Silicate

doi:10.11896/j.issn.1005-023X.2017.022.027

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	A Mechanism Study of Loess Reinforcing by Electricity-modified Sodium Silicate
	Fang, Sheng 2,3; Huang, Xuefeng 2,3; Zhang, Pengcheng 1; Zhou, Junpeng 2,3; Guo, Nan 4
刊名	Cailiao Daobao/Materials Review
	2017-11-25
卷号	31 期号:11 页码:135-141
关键词	Chemical analysis Compressive strength Electricity Image enhancement Pore size Reinforcement Sediments Silica Silicates Sodium metallography Chemical compositions Control experiments Diffraction intensity Loess Mineral composition Reinforcing Sodium silicate Unconfined compressive strength
ISSN号	1005023X
DOI	10.11896/j.issn.1005-023X.2017.022.027
英文摘要	In this paper, the reinforcing of loess by electricity-modified sodium silicate was studied through the orthogonal test and single factor control experiment. From the aspects of chemical composition, mineral composition and microstructure perspectives, the paper further analyzed and discussed the mechanism of loess reinforced by electricity-modified sodium silicate. The experimental results indicated that the unconfined compressive strength of the reinforced loess was proportional to the voltage and electrifying time; as the content of Na2O and modulus kept increasing, the strength of the reinforced loess firstly decreased, then reached the lowest extreme point before it increased; amorphous phase peak groups appeared in the X-ray diffraction pattern, and as the Na2O content kept increasing, the amorphous phase and the diffraction intensity experienced a fall before a rise; the SEM images suggested that the voltage of sodium silicate can accelerate the generation of silica, which would tighten the particle skeleton and improved the soil strength by covering the soil particles and filling the gaps between particles; the accelerated surface area-porosimetry system (BET) showed that with the increase of the voltage and the electrifying time, the small pores, pore volume and pore surface area were augmented while the scale of pore size was narrowed, and the average pore size remained hardly changed. © 2017, Materials Review Magazine. All right reserved.
语种	中文
出版者	Cailiao Daobaoshe/ Materials Review
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150221]
专题	土木工程学院
作者单位	1.Department of Chemistry and Material Engineering, Logistic Engineering University, Chongqing; 401311, China; 2.Chongqing Key Laboratory of Geomechanics & Geoenvironmental Protection, Chongqing; 401311, China; 3.Department of Civil Engineering, Logistic Engineering University, Chongqing; 401311, China; 4.School of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Fang, Sheng,Huang, Xuefeng,Zhang, Pengcheng,et al. A Mechanism Study of Loess Reinforcing by Electricity-modified Sodium Silicate[J]. Cailiao Daobao/Materials Review,2017,31(11):135-141.
APA	Fang, Sheng,Huang, Xuefeng,Zhang, Pengcheng,Zhou, Junpeng,&Guo, Nan.(2017).A Mechanism Study of Loess Reinforcing by Electricity-modified Sodium Silicate.Cailiao Daobao/Materials Review,31(11),135-141.
MLA	Fang, Sheng,et al."A Mechanism Study of Loess Reinforcing by Electricity-modified Sodium Silicate".Cailiao Daobao/Materials Review 31.11(2017):135-141.