Preparation and Properties of Coal-Based Solid Waste Geopolymer Grouting Materials

被引：0

作者：

Guo L. ^{[1
,2
]}

Zhou M. ^{[1
,2
]}

Wang L. ^{[3
]}

Xie P. ^{[3
]}

Zhang X. ^{[3
]}

机构：

[1] College of Civil Engineering, Liaoning Technical University, Fuxin

[2] Liaoning Provincial Key Laboratory of Coal Gangue Resource Utilization and Energy‑Saving Building Materials, Liaoning Technical University, Fuxin

[3] Hebei Green Park Testing & Certification Group Co.， Ltd., Handan

来源：

Jianzhu Cailiao Xuebao/Journal of Building Materials | 2022年 / 25卷 / 10期

关键词：

alkali‑activated; coal‑based solid waste; geopolymer grouting material; modifier; response surface;

D O I：

10.3969/j.issn.1007-9629.2022.10.014

中图分类号：

学科分类号：

摘要：

Coal‑based solid waste geopolymer grouting materials were prepared with coal gangue and fly ash as the main cementitious components， desulfurized gypsum and alkali activator as ligands， with a small amount of admixtures.Twenty‑five sets of experiments were carried out by response surface method to find the quantitative relation among each index and every factor versus the optimal ratio of each factor level. The results show that the regression model and response surface established by the response surface method reflect well the degree of the influence of the modifier on the slurry performance. At the same time， the slurry ratio of the compound modifier can be optimized. Under the compound effect of modifier， the geopolymer grouting material prepared with large content of coal‑based solid waste has low viscosity and good fluidity. In addition， setting time， compressive strength and impermeability meet the requirements of mine grouting material， and has good engineering application effect. © 2022 Tongji University. All rights reserved.

引用

页码：1092 / 1100

页数：8

共 23 条

[21] ZHANG Z Q, TIAN Z N, ZHANG K W, Et al., Preparation and characterization of the greener alkali‑activated grouting materials based on multi‑index optimization［J］, Construction and Building Materials, 269, (2021)
[22] BADOGIANNIS E, TSIVILIS S., Exploitation of poor Greek kaolins：Durability of meta‑kaolin concrete［J］, Cement and Concrete Composites, 31, 2, (2009)
[23] YANG J, SU Y, HE X Y, Et al., Pore structure evaluation of cementing composites blended with coal by‑products：Calcined coal gangue and coal fly ash［J］, Fuel Processing Technology, 181, (2018)

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