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     王稷良1 ,2 ,  朱繁濤1 ,2  ,  辛懿韜3  ,  徐偉東4

( 1 .  河北工程大學 土木工程學院 ，邯鄲 056038 ;  2.  交通運輸部公路科學研究院 ，北京 100088 ;

3 .  內(nèi)蒙古交通集團有限公司項目管理分公司 ，呼和浩特 010051 ;

4.  內(nèi)蒙古雷石環(huán)保科技有限公司 ，烏海 016040)

摘   要 ：粉煤灰的品質(zhì)良莠不齊制約了粉煤灰氣泡輕質(zhì)土的大規(guī)模應用 ，為了揭示不同種類和摻量下的粉 煤灰對氣泡輕質(zhì)土性能的影響 ，通過系統(tǒng)綜述粉煤灰的顆粒特征 、化學組分和火山灰活性 ，深入探討了粉煤灰 對氣泡輕質(zhì)土物理性能 、力學性能和耐久性能的作用機制。結(jié)果表明： 摻加適量的粉煤灰可以降低氣泡輕質(zhì)土 的吸水率 、干密度和孔隙率 ，有利于改善流動度和孔隙結(jié)構(gòu) ，能夠進一步增強無側(cè)限抗壓強度 、抗硫酸鹽侵蝕 性能和抗凍性能。以期為粉煤灰在氣泡輕質(zhì)土中的大規(guī)模推廣利用提供參考。

關(guān)鍵詞：粉煤灰 ；氣泡輕質(zhì)土 ；物理性能 ；力學性能 ；耐久性能

中圖分類號：TU528 . 2           文獻標志碼：A            

文章編號： 1005- 8249   (2025)  03- 0028- 08 

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

WANG Jiliang^1,2，ZHU Fantao^1,2，XIN Yitao³，XU 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 016040，China;)

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

基金項目： 內(nèi)蒙古自治區(qū)交通運輸科技項目  (NJ - 2022 - 13 ,  NJ - 2020 - 28) 。

作者簡介： 王稷良  (1978—) ,  男 ，博士 ，研究員 ，研究方向： 高性能水泥基材料。

通信作者：朱繁濤  (1998—) ,  男 ，碩士研究生 ，研究方向：大宗固廢利用。

收稿日期：2024 - 02- 18