本研究的总体目标是调查燃煤灰骨料的可行性 （CAA）-露天矿修复的修正回填。具体目标是:评估潜在风险 与使用工业副产品相关的土壤和地下水污染有关 CAA；并且，按照规划，评估土地恢复后的植物生存能力 用于农业目的。实验方法包括进行地下水质量和植物生存能力评估的实验室可行性测试。结果表明，统计上 对于低浓度的反应器，观察到较高的pH值（~8.5）- 水平降雨强度和小型降雨 CAAs（P<0.05）。在统计上，低降雨强度的反应堆的浊度更高，更高 CAAs比率，以及更小尺寸的CAAs。然而，所有系统产生的浊度均为0.5 NTU或更低。 在实验的一半时间内，对CAAs比率更高的反应器进行了统计上更高的硬度浓度监测。然而，低水平降雨强度主要产生显著影响 在后来的实验中，硬度的浓度更高。对于植物生存能力，采用分层补充模式 表层土壤和CAA比混合土壤显示出更好的结果。不管种子类型（南瓜和南瓜） 在分层回填模式下，表层土壤深度越深，效果越好 对于混合模式，表层土壤与CAA的比例更高。这两种植物在生长时也表现出更好的效果 他们的种子被种植在比CAA土壤表层更多的系统中。包括2个参考文献、表格和图表。

The overall objective of this study was to investigate the feasibility of coal combustion ash aggregates (CAA)-amended refill for open pit restoration. Specific objectives were to: assess the potential risks in relation to contamination of soil and groundwater associated with the use of the industrial byproduct CAA; and, evaluate the phyto-viability of the land after restoration as the site is planned to be used for agricultural purposes. The experimental approach included conducting laboratory feasibility tests for groundwater quality and phyto-viability assessments. Results showed that statistically higher pH values (~8.5) were observed for the reactors with low-level rainfall intensities and small-sized CAAs (P < 0.05). Turbidity was statistically higher for the reactors with low-level rainfall intensities, more CAAs ratio, and smaller size CAAs. However, all systems produced turbidity of 0.5 NTU or lower. Statistically higher hardness concentrations were monitored for the reactors with more CAAs ratio for half the length of the experiment. However, low-level rainfall intensity dominantly produced significantly higher concentrations of hardness in the later experiment. For phyto-viability, a layered refill mode with a top soil and the CAA showed better results than a mixed one. Regardless of the seed type (pumpkins and beans), better results were observed with a greater depth of the top soil for a layered backfilling mode and a higher ratio of the top soil to the CAAs for a mixed mode. Both plants also showed better results when their seeds were planted into the system that had more top soils than the CAAs. Includes 2 references, tables, figures.