FP-96 English Version - Eastern Federal Lands Highway Division

Section 409409.07 Production Start-Up Procedures for Surface Treatment. Provide7 days advance notice before constructing all asphalt surface treatments containingaggregate. Also use these start-up procedures when resuming productionafter termination due to nonconforming work.On the first day of production, construct a 500-foot control strip that is onelanewide. Locate the control strip on the project as designated.Construct the control strip using material, lay-down, and compaction proceduresintended for the remainder of the surface treatment. Cease productionafter construction of the control strip until the material and the control strip areevaluated and accepted.Acceptable control strips may remain in place and will be accepted as a partof the completed surface treatment.Repeat control strip process until an acceptable control strip is produced.409.08 Asphalt Application. Calibrate the asphalt distributor spray barheight, nozzle angle, and pump pressure and check longitudinal and transversespread rates weekly according to ASTM D 2995.Protect the surfaces of nearby objects to prevent spattering or marring. Spreadbuilding paper on the surface for a sufficient distance from the beginning andend of each application so the flow through the distributor nozzles may bestarted and stopped on the paper.The CO will approve the exact application rate, temperature, and area to betreated before application and may make adjustments for variations in fieldconditions. Apply the asphalt uniformly with an asphalt distributor. Movedistributor forward at the proper application speed at the time the spray bar isopened. Use care not to apply excess asphalt at the junction of spreads.Correct skipped areas or deficiencies. Remove and dispose of paper or othermaterial used.409.09 Aggregate Application. When using emulsified asphalt, moisten theaggregate to remove its dust coating.288