To determine the effects of climate on our roads, the IRRF has partnered with Alberta Transportation to investigate how the flexible pavement responds to various traffic loads in different seasons. In regions like Alberta, pavement is subjected to deep freeze, followed by the thawing season. Seasonal Falling Weight Deflectometer (FWD) Testing This is a long-term project that will see researchers conducting a number of tests on the road’s behaviour over the next several years. The road itself consists of three test sections, each using a different type of TDA as embankment fill: off-the-road (OTR) tires, passenger and light truck tires (PLTT), and a PLTT-soil mixture. To determine the feasibility of using this recycled material in road construction, 825,000 waste tires, weighing approximately 8,000 tonnes, were processed into TDA and used to construct a test road. In collaboration with Alberta Recycling and Alberta Transportation, the IRRF is investigating the use of TDA as embankment fill. Evaluation of Tire-Derived Aggregate (TDA) as Embankment Material
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