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Pavement & Materials Engineer

By Stephen Q. S. Lee and P. EngAnita Vanbarneveld, Michael A. Corbett and P. Eng


The authors wish to thank Mr. Imants Deme of Shell Canada Products for his support and comments during the preliminary report and Mr. Lorne Ross of RMOC for the final proof reading. LEE, VANBARNEVELD, CORBETT 2 Historically, the Regional Municipality of Ottawa-Carleton (RMOC) used 85/100 penetration grade binder with typical Performance Grade (PG) 58-22 in all conventional hot asphalt mixes. The low pavement temperature extreme encountered during any given winter in Ottawa-Carleton is generally below-26 0 C. This has resulted in a high frequency of low temperature cracking (transverse cracking). The RMOC uses SUPERPAVE PG 58-34 asphalt mixes and the Cold In-Place Recycling (CIPR) process to mitigate the low temperature cracking problem. To assess the cost effectiveness of these pavement alternatives to conventional hot mix, a network wide evaluation and correlation of costing, performance, serviceability and life cycle were carried out. In this study, a total of 38 Regional arterial roads were analyzed consisting of about 800 lane-km of roadway. Each road under analysis is further dynamically sectioned by asphalt type, last rehabilitatio

Year: 2009
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