回收聚合物的整合,以提高聚合物混凝土的性能
Maja Kępniak1, Filip Chyliński2, Paweł Łukowski1
1Department of Building Materials Engineering, Faculty of Civil Engineering, Warsaw University of Technology, Armii Ludowej 16, 00-637 Warsaw, Poland.
Materials (Basel, Switzerland)
|August 29, 2024
概括
来自混凝土瓦的回收聚合物 (RA) 增强了聚合物混凝土 (PC) 的性能,提供了更高的压力强度. 这种环保方法利用废弃物,减少对环境的影响并保护自然资源.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 环境科学 环境科学
背景情况:
- 聚合物混凝土 (PC) 是一种复合材料,具有提高性能的潜力.
- 建筑行业产生大量的混凝土瓦废物.
- 可持续材料在复合材料应用中越来越受欢迎.
研究的目的:
- 调查使用从压碎混凝土瓦中回收聚合物 (RA) 来作为聚合物混凝土中自然聚合物的部分或全部替代品.
- 评估RA对聚合物混凝土机械性能,一致性,密度和微观结构的影响.
- 突出将RA纳入聚合物混凝土的环境和经济益处.
主要方法:
- 试验测试聚合物混凝土 (PC) 的不同比例的回收聚合物 (RA).
- 评估一致性,密度,屈曲强度和压力强度.
- 微结构分析以了解RA在PC矩阵中的行为.
主要成果:
- 使用回收聚合物的聚合物混凝土与使用天然聚合物的聚合物混凝土 (89.1 MPa) 相比,实现了更高的压力强度 (96 MPa).
- 增强的强度归因于多孔RA颗粒上的树脂和填充剂的双层外.
- 低粘度树脂通过更好地填充毛孔和裂,提高了PC与RA的性能.
结论:
- 回收聚合物是用于聚合物混凝土生产的可行和有益的材料.
- 使用RA,特别是多孔,机械性质较低的聚合物,通过减少废物和节约资源,提供了显著的环境和经济优势.
- 对树脂特性进行进一步的研究可以优化聚合物混凝土与再生聚合物的性能.
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