从玄武岩石采矿废物和回收高密度聚乙烯开发建筑材料的可行性
Johnson Ngugi1, George O Rading1, Thomas O Mbuya1
1Department of Mechanical and Manufacturing Engineering, University of Nairobi, Nairobi, Kenya.
TheScientificWorldJournal
|March 5, 2025
概括
用废弃高密度聚乙烯 (HDPE) 来回收岩采石废弃物 (BQW) 创造了可持续的建筑材料. 这种复合材料表现出更好的刚性和强度,适用于屋顶和铺路块.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 土木工程 土木工程是指土木工程.
背景情况:
- 采石废物是岩石粉碎的副产品,如果处理不当,就会对环境造成危害.
- 将废物回收成可持续的建筑替代品对于环境保护和资源管理至关重要.
研究的目的:
- 调查利用废弃高密度聚乙烯 (HDPE) 来回收基岩采石废弃物 (BQW) 成为可行的建筑材料的可行性.
- 评估HDPE/BQW复合材料的物理,机械和热性能.
主要方法:
- 使用单螺丝挤出机,将再生HDPE和BQW混合化.
- 试验样品的转移成型.试验样品的转移成型.
- 使用富里埃变换红外光谱 (FTIR),热重力测量分析 (TGA) 和扫描电子显微镜 (SEM) 进行了表征.
- 机械测试包括拉伸,冲击和压力强度,以及硬度和吸水测试.
主要成果:
- FTIR证实没有显著的化学转化.
- TGA表明HDPE增强了BQW添加的热稳定性.
- SEM显示HDPE和BQW之间的接口粘附性很差.
- 拉力和冲击强度最初增加,然后随着填料含量增加而下降.
- 刚度,压力强度,压力模量,密度和硬度随着BQW含量增加而持续改善.
- 吸水率没有显著增加与填充剂含量.
结论:
- 岩采石废弃物是高密度聚乙烯的合适填充物.
- 由此产生的HDPE/BQW复合材料展示了制造可持续建筑产品的潜力,如屋顶和铺路块.
- 这种回收方法为采石废物管理提供了一个环保的解决方案.
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