Thinlay Projects On The Ground Photo 3: Oxidation and minor cracking define CLE-743 pre-paving condition. of CLE-743 can be seen in Photo 3. Oxidation and minor cracking with some sealing was typical. Pre-paving repairs were performed to address pavement conditions unsuited for using a pavement preservation treatment (Photo 4). Making pavements ready to pave is a necessary effort - even for pavement preservation projects. Use of pavement condition rating scores Photo 4: Pre-paving repairs were conducted to address structural weakness. to identify preservation projects does not preclude the need for examining a pavement to determine the need for isolated pavement repairs. Without field review the life expectancy of a preservation treatment is at risk. Thinlay paving of CLE743 commenced on Sept. 27 under cloudless skies and brisk temperature. John R. Jurgensen Co. did the paving and Valley Asphalt Corp. provided the asphalt mixture. Unique to this project was the use of PG 52-28 binder. This was ODOT's first use of PG 52-28. The binder could be described as "soft." "Old timers" would liken it to AC-5. The pavement traffic condition warranted a soft grade given the desire for improving crack resistance and pavement resilience. Photo 5: Fine-surface texture resists segregation and damaging effects of oxidation and moisture. (Note: safety edge treatment included as a project detail.) 20 * View past issues online at www.naylornetwork.com/nap-nxthttp://www.naylornetwork.com/nap-nxt