b'RUNWAYSC08 | LYV | 4F9 | 2H935PHOTO: DGR ENGINEERINGpaint removal. Brian Meyer, aviation services leader with DGR Engineering, says the prep work is similarFACTS&FIGURES to what is needed before applying standard P608. You have to repair cracks and remove any paint markings and clean it, he says. It actually goes down reasonably quickly, so the prep work and crack repairs probably take as long as the application.Project: Asphalt Maintenance TreatmentSpecifically, P608H has application rates of up toBRIAN MEYER Location: Silver West AirportWestcliffe, CO0.26 gallons per square yard, with specified aggregate of 2 to 3.5 poundsScope: Runway & ramp connectorper square yard.Product Applied: P608H from Asphalt Systems Inc.The FAA recommends rehabilitation for airfield surfaces with a pavementCost: $250,000 (including project design & construction management condition index (PCI) between 55 and 70; however, rehabilitation isservices)sometimes justified outside those parameters. In most states DOTFunding: 90% state; 10% local Aeronautics programs, a PCI rating below 70 typically initiates an overlayApplication: Aug. 29Sept. 1, 2022project, replacing the top 1 to 2.5 inches, or a mill-and-fill project, whichProject Partners: Custer County Board of Commissioners; Colorado Div. removes and replaces the top 1.5 (non-structural) to 3.5 inches (structural)of Aeronautics; Armstrong Consultantsof asphalt with new hot mix asphalt at a cost of up to $50 per square yard. Applying P608H can raise a runways PCI from a critical category to the pavement maintenance category or increase the serviceability ofProject: Asphalt Maintenance Treatmentthe pavementdepending on the amount and severity of cracking, noteLocation: LaMoure Rott Municipal in NDpersonnel from Asphalt Systems Inc. At that point, the project can likelyProduct Applied: P608H from Asphalt Systems Inc.qualify for maintenance funding, and the airport is able to extend the life ofScope: Runway (3,400 ft. long, 50 ft. wide); adjacent taxiway; about 400 its runway and delay more costly rehabilitation.sq. yards of apronAlthough the prep work for P608H is very similar toCost: $231,000prep for standard P608, it requires more onsite spaceFunding: 90% state; 10% local for materials. A larger staging and storage area isProject Partners: ND Aeronautics Commission; KLJ Engineering; required because of the need to have a considerablyFahrner Asphalt; Specialty Applicators LLChigher quantity of aggregate, advises Curt Cady,Application: About 4 hours, on Sept. 9, 2022environmental specialist and aviation supervisor withProject: Asphalt Maintenance TreatmentKLJ Engineering. CURT CADY Location: Rolette Airport in NDThe application process for P608H is also slightlyProduct Applied: P608H from Asphalt Systems Inc.different. It must be applied with a combination synchronous asphaltScope: Runway (3,400 ft. long, 40 ft. wide)distributor and aggregate spreader unit to handle heavier amounts ofCost: $175,000aggregate, while standard P608 is applied withFunding: 90% state; 10% local a distributor truck unit. Locating the specialtyProject Partners: ND Aeronautics Commission; KLJ Engineering; equipment needed for P608H requires airports andFahrner Asphalt; Specialty Applicators LLCproject teams to plan further ahead, because it mayApplication: About 2 hours on Sept. 11, 2022not be available in the immediate area. Application time between the two products is very similar. If youre looking at the exact same project, theres no difference in timeframe, says Jared Manning,JARED MANNING Project: Asphalt Maintenance TreatmentFAA Northwest Mountain Region lead for AsphaltLocation: Luverne Municipal Airport in MNSystems Inc. Product Applied: P608H from Asphalt Systems Inc.Gregory D. Cline, P.E., an airfield pavement andScope: Taxiway & apronsurface treatment subject matter expert whoseCost: $472,000clients include Asphalt Services Inc., has observedFunding: 90% Federal; 5% state; 5% localno surface degradation after almost five years at allApplication: Sept. 10Nov. 14, 202326 of the P608H locations he has assessed thus far.Project Partners: MnDOT Aeronautics Div.; DGR Engineering; Fahrner I am extremely impressed with this product, as isGREGORY CLINE Asphalt; Specialty Applicators LLCevery airfield personnel I have talked to that has hadProduct Differences: P608H contains 3-4 times more binder residue this applied as a demo, Cline reports. By his estimates, the heavy surfaceas standard P608, 5-7 times more friction fine aggregate & more polymer treatment will extend the life of pavement by seven to 10 years, and heto lock in heavier aggregate loadpredicts that PCI results will remain relatively constant as the product agesKey Benefits: Extends pavement life 4-8 years, or 710+ years under (considering past and present pavement distress types and severity, as wellideal conditions; seals & protects surface/distress cracks; reduces foreign object debris; cures faster than other surface treatments; provides as climate and pavement type). additional durability & protection against oxidizing moisture & UV raysAirportImprovement.comJanuary | February 2024'