可持续混凝土的机械性能包括各种废物
Ramy M Reda1, Hoda S E Mahmoud2, Seleem S E Ahmad2
1Civil Engineering Department, Higher Technological Institute (HTI), 10th of Ramadan City, 44629, Egypt.
Scientific reports
|August 14, 2023
概括
本研究探讨使用工业废物,如花岩粉 (GP),铁粉 (IP),粉 (BP) 和塑料颗粒 (PP) 来制造可持续混凝土. 铁粉 (IP) 高达20%的明显改善的混凝土.
科学领域:
- 土木工程 土木工程是指土木工程.
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
背景情况:
- 全球污染需要可持续的废物管理解决方案.
- 像花岩粉 (GP),铁粉 (IP),粉 (BP) 和废塑料颗粒 (PP) 这样的工业副产品带来了处置挑战.
- 在建筑中利用这些废物材料提供了成本效益,并促进了自然资源的保护.
研究的目的:
- 调查将GP,IP,BP和PP作为混凝土中的沙子部分替代品的可行性.
- 评估这些废料对混凝土的静态 (压缩,拉伸,曲) 和动态 (冲击能量) 性能的影响.
- 确定最佳的替换百分比,以提高混凝土的性能和可持续性.
主要方法:
- 混凝土混合物准备了不同的百分比 (5%,10%,15%,20%) 的GP,IP,BP和PP取代了沙子.
- 评估了静态机械性能,包括压力,拉力和屈曲强度.
- 动态性质被评估使用掉重冲击试验来确定故障时的冲击能量.
主要成果:
- 铁粉 (IP) 的最大20%的替代增强了静态和动态性能,压力,拉力,曲强度和冲击能量分别增加了8.4%,12.5%,8.5%和125%.
- 废塑料颗粒 (PP) 高达15%显著提高了225%的撞击能量.
- 发现花岩粉 (GP) 和粉 (BP) 的最佳替代水平为10%,在强度和冲击能量方面取得了显著的改善.
结论:
- 铁粉 (IP) 是一个有前途的可持续混凝土添加剂,可提高静态和动态性能,更换率高达20%.
- 废塑料颗粒 (PP) 在混凝土的抗冲击性能上提供了显著的改进.
- 在10%的替代率下,花岩粉 (GP) 和粉 (BP) 是生产具有改善机械性能的可持续混凝土的有效策略.
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