Ultrapave - final report (OK-97-10) 2293

dc.contributor.sponsorOklahoma Department of Transportation. Materials and Research Division. Office of Research & Implementation
dc.creatorBrewer, Wilson B. Jr.
dc.creatorSawyer, Steven
dc.creatorHayes, Curtis J.
dc.date.accessioned2018-08-06T14:59:07Z
dc.date.available2018-08-06T14:59:07Z
dc.date.issued1997-11
dc.description.abstractPremature rutting is a common problem with asphalt concrete pavements, particularly when they are subjected to frequent heavy-axle loading. Producers of asphalt modifiers claim that polymers reduce rutting and other distresses by providing stability and durability to the pavement. This project evaluates and compares two modifiers of a dense graded hot-mix asphalt overlay for performance, cost, and ease of construction. A styrene-butadiene (vulcanized) binder has been the standard additive used by the Oklahoma Department of Transportation (ODOT) as an AC modifier. It is a thermoplastic polymer blended with liquid asphalt at the refinery before shipping. ODOT is now testing ULTRAPAVE 70, a new product from Goodyear. This liquid styrene butadiene rubber latex thermoset polymer is shipped directly to the asphalt plant in a tanker and fed into the pugmill or in-line to the drum mixer. A maintenance overlay contract was awarded for I-40 in Division V, Bekham County and an 8.85 km (5.50 mi) section of the outside eastbound lane was selected as teht est site. A 4.15 km (2.58 mi) section was overlaid with the standard thermoplastic polymer mix and a 4.70 km (2.92 mi) section with the ULTRAPACE 70 mix. A comparative analysis of the performance of the two mixes found them to be equally effective in reducing rutting. The ULTRAPAVE 70 was, however, a more versatile product which allowed for simpler alternation between modified and unmodified mixes at the batch plant. It is recommended that the use of ULTRAPAVE 70 be permitted on ODOT projects.
dc.description.peerreviewNo
dc.description.versionFinal Report August 1994-March 1996
dc.format.extent21 pages
dc.format.extent10,423,044 bytes
dc.format.mediumapplication.pdf
dc.identifier.govdocOK 97(10)
dc.identifier.otherOklahoma Department of Transportation State Planning and Research item number 2293
dc.identifier.urihttps://hdl.handle.net/11244/301366
dc.languageen_US
dc.relation.ispartofseriesNo
dc.relation.requiresAdobe Acrobat Reader
dc.subject.keywordsAsphalt
dc.subject.keywordsPolymer
dc.subject.keywordsModified
dc.subject.keywordsLatex
dc.subject.keywordsOverlay
dc.titleUltrapave - final report (OK-97-10) 2293
dc.typeTechnical Report
dc.type.materialtext

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