基于红泥的机械和环境性能可行性评估快速设置填充支材料的支持材料
Xiang Yang1, Jiangang Zhang2, Xiangdong Su3
1College of Materials and Metallurgy, Guizhou University, Guiyang, 550003, China.
Scientific reports
|February 28, 2025
概括
红泥 (RM) 是一种废弃产品,用于制造快速置的填充支持材料,用于煤矿开采. 这种创新材料具有高早期强度,符合安全标准,促进可持续的采矿实践.
科学领域:
- 材料科学 材料科学 材料科学
- 地质技术工程 地质技术工程
- 环境科学 环境科学
背景情况:
- 红泥 (RM) 是生产的重要工业废物副产品.
- 目前的RM利用是有限的,主要是用于氧化铁的回收,大多数是填埋的.
- RM的性使其适合活性材料,增强混凝土的性能.
研究的目的:
- 设计和开发一种新型的快速定位填充支材料 (RSM),主要由红色泥制成.
- 评估基于RM的材料作为高含水量材料的替代品在煤矿采矿中口侧入口保留的性能.
- 评估开发的RSM的经济可行性和环境安全性.
主要方法:
- 基于RM的快速设置填充支材料的配方,含有不同的RM和水泥含量.
- 在多个时间点 (1,3,7,28天) 进行压力强度的实验测试.
- 通过对水化产品的分析和对重金属的浸出试验,评估初始设置时间和耐用性.
主要成果:
- 70%的RM含量和10%的水泥含量产生了具有令人满意的压力强度和初始定位时间的快速定位填充支材料 (RSM).
- 28天后压力强度达到12.33 MPa,符合GB/T 39336-2020标准.
- 漂水试验证实RSM漂水中的重金属度符合III类环境标准,表明安全应用.
结论:
- 开发的基于RM的RSM是一种可行的,高性能材料,用于煤矿采矿中的部入口保留.
- 该材料具有显著的经济和环境效益,符合绿色采矿和循环经济原则.
- 该研究解决了中国不断扩大的煤炭开采行业对填充材料的大量需求.
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