关于回收精细聚合物质量对飞/基于GGBS的地质聚合物砂影响的研究
Shilun Liu1, Zihao Liu1, Koji Takasu2
1Architecture Course, Graduate School of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino Wakamatsu, Kitakyushu 8080135, Fukuoka, Japan.
Materials (Basel, Switzerland)
|December 9, 2023
概括
回收精细聚合物 (RFA) 提高了地质聚合物砂的性能. 预处理RFA提高了流动性和压力强度,提供了可持续的建筑解决方案.
科学领域:
- 建筑材料科学 建筑材料科学
- 可持续工程 可持续工程
- 地质聚合物技术的技术
背景情况:
- 建筑业的增长增加了具体的废物挑战.
- 回收精细聚合物 (RFA) 和地质聚合物技术提供了可持续的替代品.
- 地质聚合物砂使用工业副产品,如GGBS和FA.
研究的目的:
- 研究RFA质量和数量的对地质聚合物砂属性的影响.
- 为了评估新鲜性质,机械特性和干燥收缩.
- 在地质聚合物砂配方中比较加工和未加工的RFA.
主要方法:
- 地质聚合物砂是使用GGBS和FA制备的.
- 自然聚合物被RFA用25%,50%,75%和100%的剂量取代.
- 分析了流动性,机械强度和干燥收缩.
- 微结构分析的重点是界面过渡区 (ITZ).
主要成果:
- RFA显著影响地质聚合物砂的流动性;预处理RFA超过75%的流动性增加了20%以上.
- 预加工的RFA显著提高了机械性能,特别是压力强度,与未加工的RFA相比,包含率更高.
- RFA创造了一个比天然聚合物更密集的ITZ,在增加RFA时保持压力强度.
- 在RFA-地质聚合物砂中观察到孔积和压力强度之间的正相关性.
结论:
- 精制的RFA预处理对于优化地质聚合物砂性能至关重要.
- RFA可以有效地用于地质聚合物砂,提高建筑的可持续性.
- 对RFA预处理的进一步研究可以在地聚合物混凝土中解锁更广泛的应用.
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