Transcription of Microsurfacing Definition Microsurfacing & Chip Seal
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Microsurfacing Definition Microsurfacing & Chip Seal
Pavement PreservationPavement PreservationwithwithMicrosurfacing & chip SealMicrosurfacing & chip SealSEAUPGH ilton Head Island, SC 11-12-2009 Tim HarrawoodVance Brothers, Southern Contracting DivisionMicrosurfacing DefinitionMicrosurfacing DefinitionLaboratory designed mixture of polymer modified asphalt emulsion, aggregate, mineral filler, water and other additives accurately proportioned, mixed and uniformly spread over a properly prepared SpecificationsGoverning SpecificationsMicrosurfacingISSA A 143 ASTM D 3910 FAAP-635 State DOT s and Local SpecificationsTwo Primary UsesTwo Primary UseszPreventive Maintenance To prevent surface distresses in good pavementszCorrective Maintenance To correct surface distresses in older pavementsMicrosurfacingMicrosurfacingzSe als the surface (prevents further weathering of the underlying pavement)zRestores surface texturezProvides new wearing surfacezFills cracks and voidszCorrects other distresses- Leveling Course- Rut FillingCapabilitiesMicrosurfacing AggregatezThe aggregate shall be a manufactured crushed stone such as granite, slag, limestone, chat or other high-quality aggregate or combination project specificationszConsistent within specificationzPolymer Modified Emulsified Asphalt (CSS-1HP)- Modified with Natural Latex or Synthetic polymerszPortland Cement, Hydrated Lime or Aluminum SulfatezWaterzAdditives (for break cont)
Pavement Preservation with Microsurfacing & Chip Seal SEAUPG Hilton Head Island, SC 11-12-2009 Tim Harrawood Vance Brothers, Inc. Manager Southern Contracting Division
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