再生微粉多元复合胶凝体系的性能研究

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (5): 1812-1821.

所属专题：水泥混凝土

再生微粉多元复合胶凝体系的性能研究

裴军军^1,2, 苑博文¹, 高敏¹, 郭启龙^1,2, 林政红¹, 黑亚萌¹

1.西北民族大学土木工程学院,兰州 730124;
2.甘肃省绿色工程材料与低碳建造重点实验室,兰州 730124

收稿日期:2023-11-10 修订日期:2024-01-09 出版日期:2024-05-15 发布日期:2024-06-06
通信作者: 郭启龙,博士,副教授。E-mail:guoqilong8@126.com
作者简介:裴军军(1987—),男,实验师。主要从事建筑垃圾资源化利用方面的研究。E-mail:1197057060@qq.com
基金资助:
甘肃省自然科学基金(20JR5RA510);西北民族大学引进人才项目(Z14013);中央高校基本科研业务项目(31920230028)

Properties of Multi-Component Composite Cementitious System of Regenerated Micropowder

PEI Junjun^1,2, YUAN Bowen¹, GAO Min¹, GUO Qilong^1,2, LIN Zhenghong¹, HEI Yameng¹

1. College of Civil Engineering, Northwest Minzu University, Lanzhou 730124, China;
2. Key Laboratory of Green Engineering Materials and Low-Carbon Construction of Gansu Province, Lanzhou 730124, China

Received:2023-11-10 Revised:2024-01-09 Online:2024-05-15 Published:2024-06-06

摘要/Abstract

摘要： 再生微粉复合胶凝体系对再生微粉的应用具有积极作用。本文采用再生微粉-水泥-粉煤灰构建二元/三元复合胶凝体系,研究了再生微粉的掺量对胶砂试块物理、力学性能的影响,并通过XRD和SEM探究了胶砂试块的水化产物和显微结构。结果表明:随着再生微粉掺量的增加,胶砂试块3、7、28 d的抗压强度逐渐下降,需水量增加,流动度下降,干缩值先减小后增大;掺有再生微粉和粉煤灰的复合胶凝体系胶砂试块的干燥收缩在7~14 d发展较快。随着再生微粉和粉煤灰掺量的增加,水化硅酸钙生成量逐渐减少,胶砂试块内部孔隙、裂隙明显增多。再生微粉和粉煤灰对水泥的总取代率最大为40%(质量分数)。

关键词: 再生微粉, 碱激发, 复合胶凝体系, 力学性能, 水化产物, 干燥收缩

Abstract: Composite cementitious system of regenerated micropowder is beneficial for the application of regenerated micropowder. A binary/ternary cementitious composite system was constructed by using regenerated micropowder-Portland cement-fly ash. The effect of regenerated micropowder content on physical and mechanical properties of mortar test block was studied, and the hydration products and microstructure of mortar test block were investigated by XRD and SEM. The results show that with the increase of regenerated micropowder content, the compressive strength of test block at 3, 7 and 28 d decreases, the water demand increases, the fluidity decreases, and the dry shrinkage decreases first and then increases. The drying shrinkage of composite cementitious system mortar test block mixed with regenerated micropowder and fly ash developes rapidly within 7～14 d. With the increase of regenerated micropowder and fly ash content, formation of C-S-H decreases gradually, and the internal pores and cracks of mortar test block increases significantly. The maximum total substitution rate of regenerated micropowder and fly ash to cement is 40%(mass fraction).

Key words: regenerated micropowder, alkali activation, composite cementitious system, mechanical property, hydration product, drying shrinkage

中图分类号:

TU525

裴军军, 苑博文, 高敏, 郭启龙, 林政红, 黑亚萌. 再生微粉多元复合胶凝体系的性能研究[J]. 硅酸盐通报, 2024, 43(5): 1812-1821.

PEI Junjun, YUAN Bowen, GAO Min, GUO Qilong, LIN Zhenghong, HEI Yameng. Properties of Multi-Component Composite Cementitious System of Regenerated Micropowder[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(5): 1812-1821.

参考文献

[1] 曹元辉, 王胜杰, 王勇, 等. 我国建筑垃圾综合利用现状及未来发展趋势[J]. 中国建材, 2021, 70(9): 118-121.
CAO Y H, WANG S J, WANG Y, et al. Present situation and future development trend of comprehensive utilization of construction waste in China[J]. China Building Materials, 2021, 70(9): 118-121 (in Chinese).
[2] 中华人民共和国住房和城乡建设部. 混凝土和砂浆用再生微粉: JG/T 573—2020[S]. 北京: 中国标准出版社, 2020.
Ministry of Housing and Urban Rural Development of the People's Republic of China. Recycled micro powder for concrete and mortar: JG/T 573—2020[S]. Beijing: China Standards Publishing House, 2020 (in Chinese).
[3] 陈雪, 李秋义, 杨向宁, 等. 再生微粉的性能及应用[J]. 青岛理工大学学报, 2013, 34(3): 17-21.
CHEN X, LI Q Y, YANG X N, et al. Properties and application of recycled fine powder[J]. Journal of Qingdao Technological University, 2013, 34(3): 17-21 (in Chinese).
[4] 赵磊. 建筑垃圾再生微粉基本性能及应用研究[D]. 北京: 北京建筑大学, 2019.
ZHAO L. Study on basic properties and application of recycled fine powder from construction waste[D].Beijing: Beijing University of Civil Engineering and Architecture, 2019 (in Chinese).
[5] 张修勤. 再生微粉资源化利用试验研究[D]. 青岛: 青岛理工大学, 2015.
ZHANG X Q. Experimental study on resource utilization of regenerated micro-powder[D].Qingdao: Qingdao Tehcnology University, 2015 (in Chinese).
[6] 周文娟, 季志远, 赵磊, 等. 建筑垃圾再生微粉基本材性及对水泥胶砂性能的影响[J]. 混凝土与水泥制品, 2019(3): 93-96.
ZHOU W J, JI Z Y, ZHAO L, et al. Basic performance of construction waste recycled powder and its influence on properties of cement mortar[J]. China Concrete and Cement Products, 2019(3): 93-96 (in Chinese).
[7] ZHAO Y S, GAO J M, LIU C B, et al. The particle-size effect of waste clay brick powder on its pozzolanic activity and properties of blended cement[J]. Journal of Cleaner Production, 2020, 242: 118521.
[8] 刘聪. 碱激发再生微粉胶凝材料制备及其应用研究[D]. 扬州: 扬州大学, 2021.
LIU C. Study on preparation and application of alkali-activated regenerated micropowder cementitious materials[D].Yangzhou: Yangzhou University, 2021 (in Chinese).
[9] 康晓明, 李滢, 樊耀虎. 不同激发方式对再生微粉性能的影响研究[J]. 硅酸盐通报, 2019, 38(4): 1135-1139.
KANG X M, LI Y, FAN Y H. Effect of different excitation methods on the properties of recycled concrete powder[J]. Bulletin of the Chinese Ceramic Society, 2019, 38(4): 1135-1139 (in Chinese).
[10] WU H X, XU J G, YANG D Y, et al. Utilizing thermal activation treatment to improve the properties of waste cementitious powder and its newmade cementitious materials[J]. Journal of Cleaner Production, 2021, 322: 129074.
[11] 徐如林. 建筑垃圾粉料的活性激发及其应用[D]. 武汉: 武汉理工大学, 2011.
XU R L. Activation of construction waste powder and its application[D].Wuhan: Wuhan University of Technology, 2011 (in Chinese).
[12] 李琴, 张春红, 孙可伟. 不同激发剂激发建筑垃圾再生微粉活性研究[J]. 硅酸盐通报, 2016, 35(7): 2187-2192+2197.
LI Q, ZHANG C H, SUN K W. Preliminary study on micronized active regeneration experiment with different activator excitation construction waste[J]. Bulletin of the Chinese Ceramic Society, 2016, 35(7): 2187-2192+2197 (in Chinese).
[13] 叶家元, 张文生, 史迪. 钙对碱激发胶凝材料的促凝增强作用[J]. 硅酸盐学报, 2017, 45(8): 1101-1112.
YE J Y, ZHANG W S, SHI D. Setting acceleration and strength enhancement derived from calcium species for alkali-activated cementitious materials[J]. Journal of the Chinese Ceramic Society, 2017, 45(8): 1101-1112 (in Chinese).
[14] 柯国军, 杨晓峰, 彭红, 等. 化学激发粉煤灰活性机理研究进展[J]. 煤炭学报, 2005, 30(3): 366-370.
KE G J, YANG X F, PENG H, et al. Progress of research on chemical activating mechanisms of fly ash[J]. Journal of China Coal Society, 2005, 30(3): 366-370 (in Chinese).
[15] 匡敬忠, 朱陆平, 司加保, 等. 钨尾矿机械-化学活化及其与水泥水化反应机理[J]. 材料导报, 2021, 35(13): 13018-13024.
KUANG J Z, ZHU L P, SI J B, et al. Mechanochemistry activation for tungsten tailings and hydration reaction mechanism with cement[J]. Materials Reports, 2021, 35(13): 13018-13024 (in Chinese).
[16] 关少波. 钢渣粉活性与胶凝性及其混凝土性能的研究[D]. 武汉: 武汉理工大学, 2008.
GUAN S B. Study on activity and gelation of steel slag powder and its concrete properties[D].Wuhan: Wuhan University of Technology, 2008 (in Chinese).
[17] 马稚童, 高敏, 郭启龙, 等. 复合活化对废弃混凝土再生微粉活性的影响及机理研究[J]. 新型建筑材料, 2024, 51(1): 29-33.
MA Z T, GAO M, GUO Q L, et al. Effect and mechanism of composite activation on the activity of waste concrete recycled powder[J].New Building Materials, 2024, 51(1): 29-33 (in Chinese).

再生微粉多元复合胶凝体系的性能研究

Properties of Multi-Component Composite Cementitious System of Regenerated Micropowder

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	王小燕, 叶武平, 曹力强. 可再分散乳胶粉对钢结构界面砂浆的性能影响和机理分析[J]. 硅酸盐通报, 2024, 43(6): 1999-2004.
[2]	王波, 钱军, 罗杰, 徐怡, 储洪强, 蒋林华. 水工混凝土的超疏水仿生构建及微观机理[J]. 硅酸盐通报, 2024, 43(6): 2031-2038.
[3]	郑彪, 李顺凯, 李育林, 粟友良, 林奕安. 磁化水对海工混凝土力学性能和耐久性能的影响[J]. 硅酸盐通报, 2024, 43(6): 2039-2046.
[4]	汪伟, 赖增成, 谭鹏, 鞠志成, 杨海成, 范志宏. 机制砂与特细砂抗氯盐侵蚀混凝土的制备及性能研究[J]. 硅酸盐通报, 2024, 43(6): 2121-2129.
[5]	彭丽娟, 柯国军, 宋百姓, 蒋恬, 王文青. 废玻璃粉-偏高岭土地质聚合物胶砂的流动度和力学性能[J]. 硅酸盐通报, 2024, 43(6): 2168-2175.
[6]	周明凯, 王潇, 高鹏, 王宇强. 湿基α-半水石膏制备高强石膏制品研究[J]. 硅酸盐通报, 2024, 43(6): 2186-2197.
[7]	肖建庄, 吕振源, 刘浩然. 3D打印混凝土配筋增强基础研究进展[J]. 硅酸盐通报, 2024, 43(5): 1545-1556.
[8]	毛宇飞, 郭增辉, 陈晖, 张杰, 罗健林, 刘超, 商怀帅. 3D打印混凝土增强技术研究进展[J]. 硅酸盐通报, 2024, 43(5): 1557-1568.
[9]	彭少斌, 管学茂. 3D打印煤矸石砂浆流变性能、打印性能与力学性能研究[J]. 硅酸盐通报, 2024, 43(5): 1623-1632.
[10]	马逍遥, 蹇守卫, 李宝栋, 黄健翔, 高欣, 薛文浩, 汪才峰. 不同无机增稠剂对3D打印水泥基材料性能的影响[J]. 硅酸盐通报, 2024, 43(5): 1642-1650.
[11]	李楠, 钟建军, 邓永杰, 梁云, 万德田, 李维红, 李栋伟. 偏高岭土改性轻烧氧化镁基磷酸镁水泥的3D打印性能[J]. 硅酸盐通报, 2024, 43(5): 1663-1672.
[12]	刘晓江, 李之建. 粉煤灰对粉末3D打印磷酸镁水泥基材料耐水性能的影响[J]. 硅酸盐通报, 2024, 43(5): 1673-1682.
[13]	罗澍, 李之建, 王里. 多筋增强3D打印混凝土力学性能研究[J]. 硅酸盐通报, 2024, 43(5): 1694-1703.
[14]	薛伟, 董天源, 黄晨, 侯智善, 曹宇, 魏鑫磊. SLA打印制备融合TPMS氧化铝陶瓷支架结构优化设计研究[J]. 硅酸盐通报, 2024, 43(5): 1784-1795.
[15]	霍锐, 马芹永, 张鸿朋, 李标. 钢-聚丙烯腈纤维掺量对自密实混凝土流动性与力学性能的影响[J]. 硅酸盐通报, 2024, 43(5): 1867-1877.