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Fly Ash Comprehensive Utilization
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粉煤灰特性及其对气泡轻质土性能影响研究
Study on the Characteristics of Fly Ash and Their Effects on the Performance of Foam Concrete
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     王稷良1 ,2 ,  朱繁涛1 ,2  ,  辛懿韬3  ,  徐伟东4

( 1 .  河北工程大学 土木工程学院 ,邯 056038 ;  2.  交通运输部公路科学研究院 ,北京 100088 ;

3 .  内蒙古交通集团有限公司项目管理分公司 ,呼和浩特 010051 ;

4.  内蒙古雷石环保科技有限公司 ,乌海 016040)

   :粉煤灰的品质良莠不齐制约了粉煤灰气泡轻质土的大规模应用 ,为了揭示不同种类和掺量下的粉 煤灰对气泡轻质土性能的影响 ,通过系统综述粉煤灰的颗粒特征 、化学组分和火山灰活性 ,深入探讨了粉煤灰 对气泡轻质土物理性能 、力学性能和耐久性能的作用机制。结果表明: 掺加适量的粉煤灰可以降低气泡轻质土 的吸水率 、干密度和孔隙率 ,有利于改善流动度和孔隙结构 ,能够进一步增强无侧限抗压强度 、抗硫酸盐侵蚀 性能和抗冻性能。以期为粉煤灰在气泡轻质土中的大规模推广利用提供参考。


关键词:粉煤灰 ;气泡轻质土 ;物理性能 ;力学性能 ;耐久性能


中图分类号:TU528 . 2           文献标志码:A            


文章编号: 1005- 8249   (2025)  03- 0028- 08 


DOI:10. 19860/j.cnki.issn1005 - 8249.2025 .03 .006


WANG Jiliang1,2ZHU Fantao1,2XIN Yitao3XU Weidong4

(1. School of Civil Engineering, Hebei University of Engineering, Handan 056038, China; 2. Research Institute of Highway, Ministry of Transport, Beijing 100088, China; 3. Inner Mongolia Transportation Group Co. Ltd., Project Management Branch, Hohhot 010051, China; 4. Inner Mongolia Leishi Environmental Protection Technology Co., Ltd., Wuhai 016040China;)

Abstract: The utilization of fly ash to prepare lightweight foamed concrete can not only reduce the use cost of lightweight foamed concrete, but also effectively dispose of solid waste, and improve the performance of lightweight foamed concrete to a raw coal and treatment methods, resulting in a certain volatility in the performance of fly ash based lightweight foamed concrete. In order to reveal the influence of fly ash on the performance of lightweight foamed concrete, based on the characteristics of fly ash as an admixture, the particle characteristics, chemical composition and pozzolanic activity of fly ash are summarized, and the influence law of fly ash as an admixture on the physical properties, mechanical properties, durability and other properties of lightweight foamed concrete is summarized and analyzed. And the future development trend of fly ash used in lightweight foamed concrete is prospected, in order to provide reference for the large-scale popularization and utilization of fly ash in lightweight foamed concrete.

Keywords: fly ash; lightweight foamed concrete; physical properties; mechanical properties; durability


基金项目: 内蒙古自治区交通运输科技项目  (NJ - 2022 - 13 ,  NJ - 2020 - 28) 。

作者简介: 王稷良  (1978—) ,  男 ,博士 ,研究员 ,研究方向: 高性能水泥基材料。


通信作者:朱繁涛  (1998—) ,  男 ,硕士研究生 ,研究方向:大宗固废利用。


收稿日期:2024 - 02- 18