尹博, 贾晓磊, 黄平平,等.功率超声与碱激发协同强化粉煤灰膏体充填材料力学特性实验研究[J].河南理工大学学报（自然科学版）,2026,45(2):64-75.

YIN B, JIA X L, HUANG P P,et al.Experimental study on the mechanical properties of fly ash paste filling material synergistically enhanced  by high-power ultrasound and alkali activation[J].Journal of Henan Polytechnic University(Natural Science) ,2026,45(2):64-75.

功率超声与碱激发协同强化粉煤灰膏体充填材料力学特性实验研究

尹博1,2, 贾晓磊1, 黄平平2, 连全东3, 周楠4, 李先峰5, 吴祥6, 杨瑞宙7, 杨晓艳8

1.内蒙古工业大学 资源与环境工程学院，内蒙古 呼和浩特  010051；2.内蒙古自治区雷达技术与应用重点实验室，内蒙古 呼和浩特  010051；3.鄂尔多斯市国源矿业开发有限责任公司，内蒙古 鄂尔多斯  010300；4.中国矿业大学 矿业工程学院，江苏 徐州  221116；5.新汶矿业集团有限责任公司，山东 泰安  271200；6.内蒙古自治区能源技术中心，内蒙古 呼和浩特  010098；7.内蒙古煤矿设计研究院有限责任公司，内蒙古 呼和浩特  010020；8.内蒙古自治区计量测试研究院，内蒙古 呼和浩特  010030

摘要: 目的 为了解决粉煤灰膏体充填材料早期强度低的缺点，开展超声-碱激发协同改性机理与效果研究。  方法 通过单因素试验，分析超声作用时间、超声功率、Na₂SiO₃浓度和NaOH浓度等改性因素对粉煤灰膏体充填材料1，3，7 d峰值强度的影响。基于响应面法中3因素5水平中心组合设计（CCD）试验对超声-碱激发协同改性参数进行优化分析，进一步研究改性后微观性质变化和超声-碱激发协同改性机理。 结果 结果表明，粉煤灰膏体充填材料的峰值强度随超声作用时间、超声功率、Na₂SiO₃浓度和NaOH浓度增加先增大后减小。4个因素对粉煤灰膏体充填材料峰值强度的影响顺序为Na₂SiO₃浓度＞超声作用时间＞超声功率＞NaOH浓度。超声-碱激发协同实验的最佳测试条件为超声作用时间28.62 min，超声功率700 W，Na₂SiO₃浓度0.57 mol/L。超声-碱激发协同作用提高了粉煤灰膏体充填材料的峰值强度，其中碱激发起主要作用，功率超声起强化作用。  结论 超声-碱激发协同作用进一步提高了粉煤灰膏体充填材料的水化反应速率，增加了水化产物的生成量，降低了材料孔隙率，从而提高了粉煤灰膏体充填材料的力学性能。

关键词:粉煤灰膏体充填材料;功率超声;碱激发;协同效应

doi:10.16186/j.cnki.1673-9787.2024100026

基金项目:国家自然科学基金资助项目（52264009）；内蒙古自治区自然科学基金资助项目（2020LH05006）；内蒙古自治区“草原英才”工程青年创新创业人才项目（2022年）；内蒙古自治区直属高校基本科研业务费项目（ZTY2023062）

收稿日期:2025/07/20

修回日期:2025/10/25

出版日期:2026/01/28

Experimental study on the mechanical properties of fly ash paste filling material synergistically enhanced  by high-power ultrasound and alkali activation

Yin Bo1,2, Jia Xiaolei1, Huang Pingping2, Lian Quandong3, Zhou Nan4, Li Xianfeng5, Wu Xiang6, Yang Ruizhou7, Yang Xiaoyan8

1.School of Resource and Environmental Engineering， Inner Mongolia University of Technology， Hohhot  010051， Inner Mongolia， China；2.Inner Mongolia Key Laboratory of Radar Technology and Application， Hohhot  010051， Inner Mongolia， China；3.Ordos Guoyuan Mining Development Co.， Ltd.， Ordos  010300， Inner Mongolia， China；4.School of Mines， China University of Mining and Technology， Xuzhou  221116， Jiangsu， China；5.Xinwen Mining Group Co.， Ltd.， Taian  271200， Shandong， China；6.Energy Technology Center of Inner Mongolia Autonomous Region， Hohhot  010098， Inner Mongolia， China；7.Inner Mongolia Coal Mine Design and Research Institute Co.， Ltd.， Hohhot  010020， Inner Mongolia， China；8.Inner Mongolia Institute of Metrology and Testing， Hohhot  010030， Inner Mongolia， China

Abstract: Objectives To address the problem of low early strength of fly ash paste filling material， this study investigates the mechanism and effectiveness of synergistic modification using high-power ultrasound and alkali activation.  Methods Single-factor experiments were conducted to analyze the effects of ultrasound time， ultrasound power， Na₂SiO₃ concentration， and NaOH concentration on the 1 d， 3 d， and 7 d peak strengths of fly ash paste filling material. Based on a three-factor， five-level central composite design （CCD） within the response surface methodology， the synergistic modification parameters of ultrasound and alkali activation were optimized. Furthermore， the microstructural changes after modification and the synergistic modification mechanism were systematically investigated.  Results The results indicate that the peak strength of fly ash paste filling material first increases and then decreases with increasing ultrasound time， ultrasound power， Na₂SiO₃ concentration， and NaOH concentration. The degree of influence of the four factors on peak strength follows the order： Na₂SiO₃ concentration; ultrasound time; ultrasound power; NaOH concentration. The optimal experimental conditions for the synergistic modification were an ultrasound time of 28.62 min， an ultrasound power of 700 W， and a Na₂SiO₃ concentration of 0.57 mol·L-1. The synergistic action of high-power ultrasound and alkali activation significantly enhanced the peak strength of the fly ash paste filling material， in which alkali activation played a dominant role， while high-power ultrasound exerted a strengthening effect.  Conclusions The synergistic effect of high-power ultrasound and alkali activation further accelerates the hydration reaction rate of fly ash paste filling material， increases the formation of hydration products， reduces material porosity， and consequently improves its mechanical properties.

Key words: fly ash paste filling material; high-power ultrasound; alkali activation; synergistic effect