关于城市固体废物焚烧底灰和废物带在热混合青中的综合效应的研究
Kyungwon Park1, Behnam Golestani2, Boo Hyun Nam1
1Department of Civil Engineering, College of Engineering, Kyung Hee University, Yongin 17104, Republic of Korea.
Materials (Basel, Switzerland)
|January 11, 2024
概括
回收青带 (RAS) 和城市固体废物焚烧 (MSWI) 底层灰 (BA) 改善了青混凝土. 结合这些废物材料可以提高路面工程的可持续性和机械性能.
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.
- 环境工程 环境工程
背景情况:
- 传统的路面工程通常忽视了可持续的材料替代品.
- 回收材料,如青带和焚烧灰,为可持续建筑提供了机会.
- 在青混合物中单独使用回收材料可能无法完全优化性能.
研究的目的:
- 调查回收青带 (RAS) 和城市固体废物焚烧 (MSWI) 底灰 (BA) 的联合效应. 关于青混凝土的特性.
- 确定最佳的混合比例,以提高路面工程中的机械性能和可持续性.
- 为了比较组合废料与单个使用和控制样品的性能.
主要方法:
- 两个阶段的研究: (1) 评估MSWI B.A. 单独使用和其最佳青含量 (OAC), (2) 评估BAA的综合作用. 在热混合青 (HMA) 中使用RAS和RAS.
- 使用了实验室测试,包括马歇尔稳定性,和间接拉力测试.
- 机械性能是根据强度,刚度和粘合剂要求进行评估的.
主要成果:
- 20%的石料用MSWI B.A.取代了石料. 证明了最佳性能,需要额外的1.1%的青粘合剂.
- 在与BA联合使用时,RAS的最佳添加是B.A. 被发现是5%,产生了最佳的机械性能.
- 所有包含BA和BA的青混合物. 与对照组 (传统的HMA) 相比,RAS和RAS的强度更强.
结论:
- RAS和MSWI B.A.的联合应用 显著提高了青混凝土的机械性能.
- 这种对废物材料的协同利用为路面工程提供了可持续的解决方案,提高了材料性能.
- 含有BA的优化混合物. 和RAS为传统青混合物提供了可行的替代方案,促进了资源循环.
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