在无水泥PET砂上进行实验研究,使用大理石粉和铁渣作为聚合物
Shahid Ullah Khan1, Abdur Rahim1, Nur Izzi Md Yusoff2
1Department of Transportation and Management, University of Engineering and Technology, Lahore 54890, Pakistan.
Materials (Basel, Switzerland)
|August 12, 2023
概括
本研究探讨使用废弃聚乙烯二甲 (PET) 塑料作为砂中的粘合剂,发现与大理石和铁渣混合物显著提高了强度和耐用性. 没有水泥的PET砂对建筑应用有希望.
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:
- 全球塑料产量正在上升,低回收率导致环境污染.
- 将废塑料纳入建筑材料提供了对塑料废物的潜在解决方案.
- 以前使用废弃聚乙烯二甲 (PET) 作为混凝土聚合物的尝试削弱了其性能.
研究的目的:
- 调查使用废弃PET瓶作为粘合剂的砂的机械和耐久性.
- 评估大理石和铁渣作为PET砂添加剂的有效性.
- 为了比较新型PET砂配方与普通波特兰水泥 (OPC) 砂的性能.
主要方法:
- 制备各种PET砂混合物:塑料和大理石 (PM),塑料和铁渣 (PI),塑料,沙和大理石 (PSM),塑料,铁渣和大理石 (PIM),塑料,沙和铁渣 (PSI).
- 测试不同塑料含量百分比的机械性能,包括压力和强度.
- 通过测量化学溶液 (5% HCl,20% NaOH,NaCl) 中的质量损失,在3,7和28天内评估耐用性.
主要成果:
- 含有30-45%塑料的颗粒混合物显示压力和屈曲强度增加了高达35.73%和20.21%.
- PI混合物 (30-35%塑料) 提高了强度,但更高的塑料含量 (45%) 导致强度下降.
- PSM,PIM和PSI标本的强度几乎是OPC砂的两倍.
- 与OPC砂相比,PET砂对HCl和NaCl具有良好的抗性,但对NaOH的抗性较低.
结论:
- 结合大理石和铁渣的PET砂与传统水泥砂相比,具有更好的机械性能和耐久性.
- 没有水泥的PET砂显示出增强的强度和耐用性,使其成为可行的可持续材料,用于诸如铺路,排水系统和道路等应用.
- 对优化PET砂配方的进一步研究可以带来显著的环境效益和创新的建筑材料.
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