Asphalt pavement ruttin
Pavement rutting testers are attracting much attention from the North American asphalt industry for proof testing of rutting resistance and potential modelling of rutting performance overtime. While some of these devices have been used for years, the widespread adoption of Superpave in the United States (more slowly in Canada), has re-ignited the search for a device that can both separate poor and good performing mixes, and also predict the long term field performance of pavements prior to construction. The race for a "simple performance test" is indeed on, since unlike the Marshall method, Superpave currently has no performance or strength test but is based solely on volumetrics, binder and aggregate selection criteria. This paper has two main objectives. First, a review of the existing rutting testers is presented to compare and contrast their respective strengths, weaknesses and future potential. Second, a new and fundamentally different device known as the In-Situ Shear Strength Test (InSiSST™) for asphalt pavements is presented and compared to other devices. The InSiSST™ has distinct advantages over current rut testers as it not only measures fundamental engineering properties, but it also measures those properties on actual in-service asphalt pavements in the field, not in a laboratory.
|Conference||2000 Annual Conference - Canadian Society for Civil Engineering|
Goodman, S.N. (Stephen N.), Hassan, Y, & Halim, A.O. (2000). Asphalt pavement ruttin. In 2000 Annual Conference Abstracts - Canadian Society for Civil Engineering.