Abstract
A study is described that was conducted in response to the premature deterioration of dense friction course/open friction course (DFC/OFC) hot mix surfaces with steel slag aggregates in the greater Toronto area. The deterioration manifested itself in the form of severe raveling and early formation of map cracking. A network-level pavement management system (PMS) was applied to this unique problem. A pavement condition evaluation was conducted, and a steel slag DFC/OFC-specific deterioration model was developed. The application of the PMS has been efficient. It facilitated estimating the rehabilitation needs, prioritizing the rehabilitation strategies, and demonstrating the most cost-effective budget.
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