通过地质聚合回收回收飞灰和废轮胎碎:合成,表征和成本分析
Aamar Danish1, Anthony S Torres1
1Materials Science, Engineering, and Commercialization (MSEC) Program, Texas State University, San Marcos, TX-78666, USA; Department of Engineering Technology, Texas State University, San Marcos, TX-78666, USA.
Waste management (New York, N.Y.)
|October 22, 2025
概括
这项研究表明,在地质聚合物混凝土中使用回收飞灰 (RFA) 和废轮胎碎 (WCR) 是一种可持续的建筑解决方案. 具有RFA和WCR的地质聚合物复合材料提供了良好的性能,特别是当用水固化时.
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.
- 可持续建筑 可持续建筑
背景情况:
- 高品质飞 (FA) 的可用性下降影响了可持续建筑.
- 回收非生物降解废物,如废旧轮胎 (WCR),是一个挑战.
- 地质聚合物技术提供了一个回收工业副产品和废物的途径.
研究的目的:
- 用地质聚合物技术研究回收飞灰 (RFA) 和废轮胎碎 (WCR) 的上循环利用的可行性.
- 评估基于RFA-WCR的地质聚合物作为可持续建筑材料的性能.
- 评估不同固化模式对地质聚合物特性的影响.
主要方法:
- 地质聚合物粘合剂是使用RFA和磨砂颗粒高炉渣 (GGBFS) 制成的.
- 河沙 (RS) 被用30%和50%的WCR取代为细聚合物.
- 标本经历了四种固化方案:环境温度固化 (ATC),环境温度水固化 (AWC),高温固化 (HTC) 和高温水固化 (HWC).
- 通过流径,机械强度,运输特性和微观结构分析来评估性能.
主要成果:
- 具有60%RFA和30%WCR的地质聚合物表现出足够的流动性和机械性能,适用于建筑.
- 与空气或热固化相比,水固化 (AWC和HWC) 显著提高了机械强度和对环境剂的抗性.
- 虽然RFA含量略有降低了成本,但WCR的整合增加了成本,但整体业绩保持不变.
结论:
- 回收飞灰 (RFA) 和废轮胎碎 (WCR) 可以有效地在地质聚合物复合材料中使用,而不会影响性能.
- 水固化对于优化RFA-WCR地质聚合物的耐用性和强度至关重要.
- 这种方法促进了可持续的建筑实践,并为处理填埋的FA和废轮胎提供了可行的解决方案.
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