Use of TSRU Materials for Innovative Road Pavement Applications

该项目将研究尾矿溶剂回收装置材料（TSRUM）在沥青道路建设领域的创新应用。TSRUM由6%的沥青质，17%的矿物质和大约75%的水组成。因此，预期将湿形式的TSRUM以适当比例与集料预混合将提供所需的水分以促进集料与沥青乳液和沥青质的混合，从而增强稳定层的性能。为此，将研究在有和没有沥青乳液的粒状土壤中加入TSRUM（含水）。通过评估设计混合料的物理和机械性能，将为粒状骨料、TSRUM和沥青乳液的组合准备不同的混合料设计。混合料的机械性能将在混合料设计阶段使用马歇尔稳定性和抗拉强度试验进行评估。配合比设计完成后，将研究混合料的性能，包括抗车辙、抗湿和抗裂性。拟议研究的目标是：（1）开发用于道路基层应用的粒状骨料和TSRUM组合的配合比设计;以及（2）研究设计混合料的性能特性，包括抗永久变形、湿敏性和抗裂性。拟建项目，由阿尔伯塔大学牵头，与帝国石油公司合作，将为TSRUM在路面行业开发一种创新的增值应用。这项研究不仅将有利于油砂行业，这是产生目前低价值的TSRUM产品，但也在加拿大和国外的道路所有者和最终用户。

This project will investigate an innovative application for tailings solvent recovery units material (TSRUM) in the asphalt road construction sector. TSRUM is composed of 6% asphaltenes, 17% minerals, and approximately 75% water. Hence, it is expected that pre-mixing TSRUM in a wet form in an appropriate proportion with the aggregates will provide the required moisture to facilitate mixing of the aggregate with the asphalt emulsion and asphaltenes to enhance the properties of the stabilized layers. For this purpose, the addition of TSRUM (containing water) to the granular soil with and without asphalt emulsion will be studied. By evaluating the physical and mechanical properties of the designed mixes, different mix designs will be prepared for combinations of granular aggregate, TSRUM, and asphalt emulsion. The mechanical properties of the mixes will be evaluated at the mix design stage using Marshall stability and tensile strength tests. After finalizing the mix designs, the mix's performance properties, including rutting resistance, moisture resistance, and cracking resistance, will be investigated.The objectives to be addressed in the proposed research are to: (1) develop a mix design for a combination of granular aggregates and TSRUM for road base course application; and (2) investigate the performance properties of the designed mixes, including resistance to permanent deformation, moisture sensitivity, and cracking resistance.The proposed project, led by the University of Alberta in partnership with Imperial Oil, will develop an innovative and value-added application for TSRUM in the pavement industry. This research will benefit not only the oil sands sector, which is generating the currently low-value TSRUM product, but also the owners and end-users of roads in Canada and abroad.