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陈思豫1  ,  石恩华1  ,  周永贵1  ,  李    欣2  ,  卢   亚2

( 1 .  航天宏图信息技术股份有限公司 ，北京 100195 ;  2.  北京建筑大学 土木与交通工程学院 ，北京 100044)

摘   要 ：为提升建筑垃圾资源化利用水平 ，开展物理发泡工艺制备再生微粉泡沫混凝土的研究。固定再生 微粉掺量为胶凝材料总量的 10% 。分析再生微粉泡沫混凝土 X 射线衍射图 ，揭示了水胶比对再生微粉泡沫混凝 土强度的影响规律 ，分析了掺入胶粉和纤维对再生微粉泡沫混凝土性能的提升效果。结果表明：再生微粉泡沫 混凝土的抗折和抗压强度随着水胶比的减小而增大 ，整体规律与普通混凝土相似 ，但增幅更大 ；胶粉 、纤维的 加入可以改善泡沫混凝土中孔径的分布 ，使试件的小孔占比增多 ，对再生微粉泡沫混凝土抗压强度及抗折强度 均有提高。结论可为相关工程提供参考。

关键词：再生微粉 ；泡沫混凝土 ；孔结构 ；力学性能

中图分类号：TU55           文献标志码：A        

    

文章编号： 1005- 8249   (2025)  03- 0043- 06 

DOI:10. 19860/j.cnki.issn1005 - 8249.2025 .03 .008

CHEN Siyu ¹,SHI Enhua¹, ZHOU Yonggui ¹, LI Xin², LU Ya²

(1. Hangtian Hongtu Information Technology Co., Ltd., Beijing 100195, China；

2. Beijing University of Architecture and Civil Engineering, School of Civil and Transportation Engineering, Beijing 100044, China）

Abstract：In order to improve the level of resource utilization of construction waste, the research on the preparation of recycled micro-powder foam concrete by physical foaming process was carried out. The amount of fixed recycled fine powder is 10 % of the total amount of cementitious materials. The X-ray diffraction pattern of recycled micro-powder foam concrete was analyzed, and the influence of water-binder ratio on the strength of recycled micro-powder foam concrete was revealed. The effect of adding rubber powder and fiber on the performance of recycled micro-powder foam concrete was analyzed. The results show that the flexural and compressive strength of recycled micro-powder foam concrete increase with the decrease of water-binder ratio, and the overall law is similar to that of ordinary concrete, but the increase is greater. The addition of rubber powder and fiber can improve the distribution of pore size in foam concrete, increase the proportion of small pores in the specimen, and improve the compressive strength and flexural strength of recycled fine powder foam concrete.

Keywords: recycled powder; foam concrete; pore structure; mechanical properties

基金项目：郑州市自然资源和规划局郑州多要素城市地质调 查项目 建筑垃圾现状调查与资源化利用研究（ 郑财招标采购-  2020 - 475) 。

作者简介： 陈思豫  (1989—) ,   男 ，硕士 ， 工程师 ，研究方 向 ：建筑垃圾资源化应用等。

收稿日期：2024 - 07 - 03