通过废物回收利用铺路:城市固体废物焚烧 - 底层灰 (MSWI-BA) 作为可行的细聚合物的替代品
Sachin Gowda1, Vaishakh Kunjar2, Aakash Gupta3
1Central Road Research Institute CSIR, New Delhi, India. sachin08.crri@nic.in.
概括
城市固体废物焚烧 - 底部灰 (MSWI-BA) 可以在道路建设中取代细聚合物. 在混凝土 (BC-II) 中高达20%的MSWI-BA可提高性能,满足标准,提供可持续的解决方案.
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:
- 越来越少的天然聚合物用于道路建设.
- 越来越需要可持续的废物管理解决方案.
- 城市固体废物焚烧 - 底部灰 (MSWI-BA) 作为建筑材料的利用潜力.
研究的目的:
- 评估在混凝土 (BC-II) 中用MSWI-BA取代细聚合物的性能和环境影响.
- 为了确定BC-II混合物中MSWI-BA的最佳替代水平.
- 评估MSWI-BA对道路建设应用的适用性.
主要方法:
- 混凝土 (BC-II) 混合物是用MSWI-BA替代不同百分比 (0-50%) 的细块来制备的.
- 评估了马歇尔稳定性,刚性,耐湿性和易受腐蚀的易感性.
- 使用毒性特征泄漏程序 (TCLP) 来评估环境安全.
主要成果:
- 由于MSWI-BA的多孔性,因此需要增加粘合剂含量.
- 通过20%的MSWI-BA替换,实现了满足道路运输和公路部 (MoRTH) 规格的最佳性能.
- 高达20%的替换改善了马歇尔的稳定性,刚性和耐湿性.
- 较高的替代水平 (高达30%) 显示出小幅增加了化易感性,但仍然令人满意.
- TCLP证实MSWI-BA是无危险的,并且有效封装.
结论:
- 为了提高性能和可持续性,建议在BC-II中用高达20%的MSWI-BA取代细聚合物.
- 20%的MSWI-BA混合物提供了工程性能和环境效益之间的平衡.
- MSWI-BA可以安全地用于道路建设,有助于减少废物和节约资源.
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