1. Eight Year Review of Design and Construction – Calabogie Race Track Pavement George Wang, Ph.D., P.Eng. Associate Professor Department of Construction Management College of Engineering & Technology East Carolina University Greenville, North Carolina wangg@ecu.edu The 52nd Annual International Conference of the Associated Schools of Construction (ASC), April 14–16, 2016 Brigham Young University, Provo, Utah

2. Calabogie Race Track: 5.05 km (3.14 mile) located in Renfrew County, Ontario, near Ottawa. Layout design by Wilson Motorsport Inc. Consists of 20 turns, 40 feet wide, and featuring a 2,000 ft. long straightaway. The design plan considered all operational and safety elements for race events and professional level events. Constructed 2004-2006; revisited in July 2014, by the 1 st author - Project Manager (worked for the owner)

3. It has also been used by major automobile manufacturers for testing track, for the Harley-Davidson XR1200, for instance. The track opened in September 2006, immediately after the asphalt paving completion. The track has hosted numerous Canadian and international racing events including Castrol Canadian and Superbike Championship, club level car and motorcycle competition. 2014 revisit after 8 years HMA paving completion

4. Processing quarry rock mined near the construction site. Aggregate base course is constructed. The HMA aggregate was also quarried from local pit and crushed and processed near the site. The types of quarry rock were dolomitic, traprock, and meta-Arkose. PMA was selected for surface course. 2004 – 2006:

5. High stability surface mix for highway pavement was used for race track wear course. HL8 was used for HMA base course. Echelon paving and MTV were employed for HMA paving and temperatures were checked constantly.

6. Paving Hot Laid (HL 8) Base Course Hot Mix Asphalt Materials Transfer Vehicle (Device) (MTV) was used

7. The hydrated lime was applied by using a common rotary type garden fertilizer spreader (not a broadcast spreader) to keep the hydrated lime as close to the asphalt pavement surface as possible. Continuous echelon paving including night paving

8. Quality management: More stringent QC by Contractor and QA by the Engineer (for the Owner) Skid resistance: highway standard Smoothness: 3mm/12m or 0.15 in./40 ft. HMA being transferred to MTV

9. Compaction is extremely critical Vibrating plate tamper was used to compact all edge HMA base and surface courses

10. Nearly done? Night Paving? Yes: Planning, Planning, Planning

11. A heavy loaded truck was used to make static sharp turning of wheels to check the stiffness of HMA surface after approximate one week of paving, prior to opening to test drives. Finished surface texture of the race track

12. It was known and not uncommon that some tracks may have distress beginning with raveling or lose aggregate, very quickly under the loads imposed by race cars and motorcycles. The site inspection in 2014 indicted that the Track surface demonstrated a very good condition after 8 years’ service when inspected. The site showed no raveling, cracking and settlements and unevenness. It was agreed that an instrumental measuring be conducted in summer 2016. Eight years later

13. Perfect surface after 8 years service Even under inclement weather Conditions in Ottawa area. Can we build our highway pavement like this? For sure, quality does NOT cost you anything.

14. Performance cars are ready to race “Let me take a test drive to check the pavement!?” “Yes approved, you can drive this Porsche RS 4.0” My wife Jane – always my “research assistant”!

15. Questions? wangg@ecu.edu

16. A new book on slag utilization: The Utilization of Slag in Civil Infrastructure Construction By George C. Wang To be published in June 2016 by Elsevier Contact: wangg@ecu.edu