装配式建筑用聚合物乳液改性套筒灌浆料的制备及性能研究

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (3): 833-843.

所属专题：水泥混凝土

装配式建筑用聚合物乳液改性套筒灌浆料的制备及性能研究

付弯弯^1,2, 劳家岳^1,2, 郭柯钰^1,2, 陈柳维^1,2, 吴世芳^1,2, 周薇^1,2, 谭晓明^1,2, 彭浩^1,2

1.武汉轻工大学土木工程与建筑学院,武汉 430023;
2.武汉轻工大学海洋工程结构防护材料中试平台,武汉 430023

收稿日期:2023-09-27 修订日期:2023-12-01 出版日期:2024-03-15 发布日期:2024-03-27
作者简介:付弯弯(1990—),女,博士,讲师。主要从事新型绿色建筑材料等方面的研究。E-mail:whwanwanfu@whpu.edu.cn
基金资助:
武汉轻工大学校立科研项目(2021Y40);湖北省自然科学基金(2021CFB583)

Preparation and Performance of Sleeve Grouting Material Modified with Polymer Emulsion for Prefabricated Buildings

FU Wanwan^1,2, LAO Jiayue^1,2, GUO Keyu^1,2, CHEN Liuwei^1,2, WU Shifang^1,2, ZHOU Wei^1,2, TAN Xiaoming^1,2, PENG Hao^1,2

1. School of Civil Engineering and Architecture, Wuhan Polytechnic University, Wuhan 430023, China;
2. Pilot-Scale Platform of Marine Engineering Structural Protective Materials, Wuhan Polytechnic University, Wuhan 430023, China

Received:2023-09-27 Revised:2023-12-01 Online:2024-03-15 Published:2024-03-27

摘要/Abstract

摘要： 本文利用醋酸乙烯酯-乙烯共聚乳液(EVA)、丙烯酸酯乳液(PAE)分别对装配式水泥基套筒灌浆料进行改性,制备了2种聚合物乳液改性套筒灌浆料。研究了聚合物乳液对套筒灌浆料流动度、抗压强度、吸水率、膨胀率、耐久性、拉伸性能和微观结构的影响,并进行了成本核算。结果表明:掺入聚合物乳液能显著改善灌浆料的流动度、抗压强度、吸水率、抗硫酸盐侵蚀和抗冻融侵蚀性能,而且PAE改性的套筒灌浆料的综合性能优于EVA改性;PAE改性能增强灌浆料整体内聚力和密实度,使得灌浆料的膨胀率基本无负面影响且无泌水现象,同时可以增强灌浆料接头的拉伸性能、抗拉强度以及黏结强度。当PAE掺量在0.3%~1.0%(质量分数)时,PAE改性灌浆料性能均满足相应国家标准要求,且制备成本较低。

关键词: 装配式建筑, 套筒灌浆料, 聚合物乳液, 套筒接头拉伸性能, 流动度, 抗压强度

Abstract: In this study, two kinds of polymer emulsion-modified sleeve grouting materials were prepared with vinyl acetate-ethylene copolymerization emulsion (EVA) and acrylate emulsion (PAE), respectively. The effects of polymer emulsion on the fluidity, compressive strength, water absorption, expansion rate, durability, tensile property and microstructure of the sleeve grouting material were investigated and its cost accounting was executed. The results show that polymer emulsion can significantly improve the fluidity, compressive strength, water absorption, sulfate resistance and freeze thaw resistance of grouting materials, and the comprehensive properties of PAE modified sleeve grouting materials are better than EVA modified ones. PAE modification enhances the overall cohesion and density of grouting material, ensuring that the expansion rate of the grouting material has little negative impact and no bleeding phenomenon. At the same time, it can enhance the tensile performance, tensile strength, and bonding strength of grouting material joint. When the PAE content is between 0.3% and 1.0% (mass fraction), the performance of PAE modified grouting material meets the corresponding national standard requirements, and the preparation cost is relatively low.

Key words: prefabricated building, sleeve grouting material, polymer emulsion, tensile property of grouting joint, fluidity, compressive strength

中图分类号:

TU528.41

付弯弯, 劳家岳, 郭柯钰, 陈柳维, 吴世芳, 周薇, 谭晓明, 彭浩. 装配式建筑用聚合物乳液改性套筒灌浆料的制备及性能研究[J]. 硅酸盐通报, 2024, 43(3): 833-843.

FU Wanwan, LAO Jiayue, GUO Keyu, CHEN Liuwei, WU Shifang, ZHOU Wei, TAN Xiaoming, PENG Hao. Preparation and Performance of Sleeve Grouting Material Modified with Polymer Emulsion for Prefabricated Buildings[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 833-843.

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装配式建筑用聚合物乳液改性套筒灌浆料的制备及性能研究

Preparation and Performance of Sleeve Grouting Material Modified with Polymer Emulsion for Prefabricated Buildings

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