[1]许利惟,陈韩,蒋远,等.碱激发富镁镍渣淤泥固化土USC及机理分析[J].华侨大学学报(自然科学版),2024,45(2):248-254.[doi:10.11830/ISSN.1000-5013.202310023]
　XU Liwei,CHEN Han,JIANG Yuan,et al.USC and Mechanism Analysis of Alkali-Activated Magnesium-Rich Nickel Silt-Cured Soil[J].Journal of Huaqiao University(Natural Science),2024,45(2):248-254.[doi:10.11830/ISSN.1000-5013.202310023]
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碱激发富镁镍渣淤泥固化土USC及机理分析()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第45卷
期数:
2024年第2期
页码:
248-254
栏目:
出版日期:
2024-03-20

文章信息/Info

Title:
USC and Mechanism Analysis of Alkali-Activated Magnesium-Rich Nickel Silt-Cured Soil
文章编号:
1000-5013(2024)02-0248-07
作者:
许利惟1; 2;  陈韩1; 2;  蒋远1; 2;  吴毅轩1; 2;  刘雨菲3;  毛文宫4
1. 福建理工大学 地下工程福建省高校重点实验室, 福建 福州 350118;2. 福建理工大学 土木工程学院, 福建 福州 350118;3. 福建理工大学 建筑与城乡规划学院, 福建 福州 350118;4. 福建省凯景投资集团有限公司, 福建 福州 350002
Author(s):
XU Liwei1; 2;  CHEN Han1; 2;  JIANG Yuan1; 2; WU Yixuan1; 2;  LIU Yufei3;  MAO Wengong4
1. Key Laboratory of Underground Engineering of Fujian Province University, Fujian University of Technology, Fuzhou 350118, China; 2. School of Civil Engineering, Fujian University of Technology, Fuzhou 350118, China; 3. College of Architecture and Urban and Rural Planning, Fujian University of Technology, Fuzhou 350118, China; 4. Fujian Kaijing Investment Group Limited Company, Fuzhou 350002, China
关键词:
富镁镍渣;  碱激发;  淤泥;  无侧限抗压强度;  微观机理
Keywords:
magnesium-rich nickel residue;  alkali-activation;  silt;  unconfined compressive strength;  micro-mechanisms
分类号:
TU43
DOI:
10.11830/ISSN.1000-5013.202310023
文献标志码:
A
摘要:
研究固化剂质量分数(固化剂掺量)、淤泥水的质量分数及碱激发剂种类等因素对淤泥固化土无侧限抗压强度(UCS)的影响,采用扫描电镜(SEM)、X射线能谱(EDS)分析、X射线衍射(XRD)和压汞仪(MIP)分析淤泥固化土的微观结构,并揭示其作用机理。试验结果表明:碱激发富镁镍渣固化剂能有效固化淤泥土,最高强度可达702 kPa;由淤泥固化土水化反应生成了钠镁硅铝酸盐聚合物凝胶产物(N-M-A-S),凝胶产物通过黏结土体颗粒并填充土体孔隙,使淤泥固化土的结构更加致密紧实。
Abstract:
The effect of factors such as mass fraction of curing agent(dosage of curing agent), mass fraction of sludge water and alkali-activator type on the unconfined compressive strength(UCS)of silt-cured soil was investigated, and the microstructure of silt-cured soil was analyzed using scanning electron microscope(SEM), X-ray energy dispersive spectroscope(EDS)analysis, X-ray diffraction(XRD)and mercury pressure instrument(MIP), and the mechanism of the action was revealed. The experimental results show that the silt soil is solidified effectively by the alkali-activated magnesium-rich nickel residue curing agent,and the highest strength reaches 702 kPa. Sodium magnesium silicate aluminate polymer gel product(N-M-A-S)is generated from the hydration reaction of silt-cured soil, which makes the structure of the silt-cured soil more compact by bonding -收稿日期:2023-10-03通信作者:毛文宫(1972-),男,高级工程师,主要从事土木工程材料的研究。E-mail:463493634@qq.com。基金项目:福建省自然科学基金资助项目(2023J01937); 福建省住房和城乡建设厅科学技术计划项目(2022-K-21 4); 大学生创新创业训练计划项目(202310388028)soil particles and filling the pores of the soil body.

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备注/Memo

备注/Memo:
收稿日期: 2023-10-03
通信作者: 毛文宫(1972-),男,高级工程师,主要从事土木工程材料的研究。E-mail:463493634@qq.com。
基金项目: 福建省自然科学基金资助项目(2023J01937); 福建省住房和城乡建设厅科学技术计划项目(2022-K-21 4); 大学生创新创业训练计划项目(202310388028)
更新日期/Last Update: 2024-03-20