Material Behavior and Its Impact on Northern Development

研究的重点是改善加拿大北方地区的废物处理实践。此外，正在进行的研究，以提高我们的了解，通过冻结边缘的冻胀过程和水运动的计划。还建议研究开发一种增强型复合尾矿（CT），以降低油砂工业的回收成本。关于改善矿山废物处理的研究将研究如何在北极放置富含硫化物的尾矿，以消除未来对酸性矿山废水的担忧。将进行关于使用“冻结控制”放置尾矿的研究。“冻结控制”放置是一种将矿山废物分层放置并使其在冬季冻结的战略。冻结将水锁定在冰中，这有可能使水与硫化物矿物接触。在氧化过程中，水和氧气必须同时存在，以形成被称为酸性矿井排水的酸性水。一旦尾矿的放置完成，它们将被废石覆盖，以最大限度地减少或消除夏季期间或由于气候引起的变暖而导致的解冻。申请人正在申请研究资金，以研究页岩增强的固结/复合尾矿（CT）的开发，这将允许更快地回收存款，并有可能在最终的废物存款中隔离大量的盐。粘土页岩具有吸收水的能力，并且当其与来自油砂矿的成熟细尾矿混合时，其形成具有极小的输水能力的低强度粘土。这些特征将结合起来，形成这个增强CT。将对冻土的特性进行研究，以提高专业人员对冻胀的基本原理和控制其大小的土壤特性的理解

The research focuses on improving the waste disposal practice in Northern Regions of Canada. In addition, ongoing research to improve our understanding of the frost heave process and water movement through the frozen fringe is planned. Research is also proposed to develop an enhanced type of composite tailings (CT) to lower reclamation costs for the oil sands industry. The research on improving mine waste disposal will study how to place sulfide rich mine tailings in the Arctic to eliminate future concerns with Acid Mine Drainage. Studies on the use of "Freeze control" placement of the tailings will be carried out. "Freeze control" placement is a strategy of placing the mine waste in layers and allowing it to freeze during the winter. Freezing locks the water into the ice and this has the potential to eliminate it from contact with the sulfide minerals. Water and oxygen must be both present during the oxidation process to form acidic water known as acid mine drainage. Once placement of the tailings is complete they will be covered with waste rock to minimize or eliminate thaw during the summer or as a result of climate induced warming.The applicant is applying for research funds to study development of shale enhancedConsolidate/Composite Tailings (CT) that will allow for more rapid reclamation of the deposit and has the potential to sequester a substantial mass of salt in the final waste deposit. The clay shale has the ability to absorb water and when it is mixed with mature fine tails from the oil sands mines it forms a low strength clay that has an extremely small ability to transmit water. These characteristics will be combined to form this enhanced CT. Research on the behavior of freezing soils will be undertaken to improve the professions understanding of the fundamentals of frost heave and the soil properties that control its magnitude