Evaluation of bituminous mixes in pavement structures interim report I - Analysis of mixes containing siliceous aggregates

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dc.contributor.sponsorOklahoma Department of Transportation. Materials and Research Division. Office of Research & Implementation
dc.creatorManke, Phillip G.
dc.creatorFord, Miller C. Jr.
dc.date.accessioned2019-03-08T19:47:29Z
dc.date.available2019-03-08T19:47:29Z
dc.date.issuedJun-73
dc.description.abstractSufficient heat can be transported from the surrounding ground to a bridge deck by heat pipes to both reduce the number of freeze-thaw cycles and to reduce the time during which the surface is below freezing. In a computer model of the thermal response of a bridge during a sample month, the use of heat pipes spaced six inches apart reduced the number of freeze-thaw cycles by 58% and the time that the surface was below freezing by 87%. While even higher performance is possible, economic and structural constraints will certianly preclude the elimination of all freezing. A screen covered groove heat pipe using ammonia as a working fluid appears to yield the best performance. Computer models are presented to analyse the performance of such heat pipes and to predict the thermal response of a highway bridge with heat pipes to either idealized or actual meteorological conditions. Recommendations are made for further work.
dc.description.peerreviewNo
dc.description.versionInterim Report I
dc.format.extent121 pages
dc.format.extent21,867,265 bytes
dc.format.mediumapplication.pdf
dc.identifier.govdocFHWA-OK
dc.identifier.otherOklahoma Department of Transportation State Planning and Research
dc.identifier.urihttps://hdl.handle.net/11244/317581
dc.languageen_US
dc.relation.ispartofseriesNo
dc.relation.requiresAdobe Acrobat Reader
dc.titleEvaluation of bituminous mixes in pavement structures interim report I - Analysis of mixes containing siliceous aggregates
dc.typeTechnical Report
dc.type.materialtext

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