碱渣-粉煤灰稳定土力学性能研究

doi:10.16552/j.cnki.issn1001-1625.2024.1551

硅酸盐通报 ›› 2025, Vol. 44 ›› Issue (4): 1504-1512.DOI: 10.16552/j.cnki.issn1001-1625.2024.1551

碱渣-粉煤灰稳定土力学性能研究

赵晓晴¹, 蒋成¹, 黄勃², 战楚南², 周子萌¹, 赵明睿¹, 杨天风¹

1.江苏海洋大学土木与港海工程学院,连云港 222005;
2.中核生态环境有限公司,连云港 222000

收稿日期:2024-12-16 修订日期:2025-01-22 出版日期:2025-04-15 发布日期:2025-04-18
通信作者: 杨天风,硕士研究生。E-mail:2022220446@jou.edu.cn
作者简介:赵晓晴(1981—),女,博士,教授。主要从事固废资源化利用及地基处理新技术方向的研究。E-mail:zxqjhd@jou.edu.cn
基金资助:
国家自然科学基金(51809101);江苏省高等学校自然科学研究项目(23KJA580003);产学研合作项目(JOUH24407);连云港市重点研发计划项目(CG2434);江苏省研究生科研与实践创新计划项目(SJCX24-2081)

Mechanical Properties of Soda Residue-Fly Ash Stabilized Soil

ZHAO Xiaoqing¹, JIANG Cheng¹, HUANG Bo², ZHAN Chunan², ZHOU Zimeng¹, ZHAO Mingrui¹, YANG Tianfeng¹

1. School of Civil and Ocean Engineering, Jiangsu Ocean University, Lianyungang 222005, China;
2. CNNC Ecology Environment Co., Ltd., Lianyungang 222000, China

Received:2024-12-16 Revised:2025-01-22 Published:2025-04-15 Online:2025-04-18

摘要/Abstract

摘要： 为提高碱渣利用率,减少碱渣堆存对环境带来的危害,本文提出用碱渣、粉煤灰稳定黏土,外掺水泥、石灰,制备碱渣-粉煤灰稳定土填料。以最大干密度、最优含水率、无侧限抗压强度(UCS)、抗剪强度参数为指标,利用正交矩阵分析法进行分析,根据影响权重探究碱渣、粉煤灰、水泥、石灰对碱渣-粉煤灰稳定土力学性质的影响规律。结果表明,粉煤灰掺量对最大干密度影响最大;碱渣掺量对最优含水率、7 d无侧限抗压强度和7 d抗剪强度内摩擦角影响最大;石灰掺量对7 d抗剪强度黏聚力影响最大。碱渣-粉煤灰稳定土具有良好的强度性能。可基于碱渣-粉煤灰稳定土级配机理和胶凝材料胶结机理,利用正交矩阵分析法推荐配合比适用范围,使碱渣-粉煤灰稳定土能够更好地服务实际工程。

关键词: 碱渣-粉煤灰稳定土, 正交矩阵分析法, 击实性质, 力学性能, 级配机理, 胶结机理, 配合比

Abstract: In order to improve the utilization rate of soola residue and reduce the harm to the environment caused by soda residue storage, this paper proposed to use soda residue and fly ash stabilized clay, and add cement and lime to prepare soda residue-fly ash stabilized soil. Taking the maximum dry density, optimal water content, unconfined compressive strength (UCS) and shear strength parameters as the indexes, the orthogonal matrix analysis method was used to analyze the influence of soda residue, fly ash, cement and lime on the mechanical properties of soda residue-fly ash stabilized soil according to the influence weight. The results show that the fly ash content has the greatest influence on the maximum dry density. The soda residue content has the greatest influence on the optimum water content, 7 d UCS and the internal friction angle of 7 d shear strength. The lime content has the greatest influence on the cohesion of 7 d shear strength. The soda residue-fly ash stabilized soil has good strength performance. Based on the gradation mechanism of soda residue-fly ash stabilized soil and the cementation mechanism of cementitious materials, the orthogonal matrix analysis method is used to recommend the scope of application of the mix ratio, so that the soda residue-fly ash can better serve the actual project.

Key words: soda residue-fly ash stabilized soil, orthogonal matrix analysis method, compaction property, mechanical property, gradation mechanism, cementation mechanism, proportion recommendation

中图分类号:

X781

赵晓晴, 蒋成, 黄勃, 战楚南, 周子萌, 赵明睿, 杨天风. 碱渣-粉煤灰稳定土力学性能研究[J]. 硅酸盐通报, 2025, 44(4): 1504-1512.

ZHAO Xiaoqing, JIANG Cheng, HUANG Bo, ZHAN Chunan, ZHOU Zimeng, ZHAO Mingrui, YANG Tianfeng. Mechanical Properties of Soda Residue-Fly Ash Stabilized Soil[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(4): 1504-1512.

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碱渣-粉煤灰稳定土力学性能研究

Mechanical Properties of Soda Residue-Fly Ash Stabilized Soil

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