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Adaptation of Viscosity Grade System In selection of Asphalt In Sudan

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dc.contributor.advisor Hassan, Seifeldin Akasha Ibrahim Supervisor ,- Awad Alkarim Mustafa 2014-05-19T09:09:35Z 2014-05-19T09:09:35Z 2011-09-01
dc.identifier.citation Hassan,Seifeldin Akasha Ibrahim .Adaptation of Viscosity Grade System In selection of Asphalt In Sudan/Seifeldin Akasha Ibrahim Hassan;Awad Alkarim Mustafa.-Khartoum:Sudan University of Science and Technology,College of Engineering,2011.-69p. : ill. ; 28cm.-M.Sc. en_US
dc.description Thesis en_US
dc.description.abstract This study reviewed the Viscosity Grading System to be adapted in Sudan. It concerns Engineers, Consultants, Contractors, Suppliers and Local Authorities involved. The Asphalt imported to Sudan from different sources (Egypt, Saudi, Iran …etc) according to penetration grade system. The study reviewed the history of grading Asphalt and its uses. This review will assist us to knowing how far Sudan has come to and where it should be in long term so as grading and selecting asphalt are concerned. Asphalt is a thermoplastic material, that is, its stiffness is dependent on temperature, stiffness decreases as temperature increases, this temperature verses stiffness relationship is different for asphalt based on the origin of the Petroleum Crude and/or method of refining. It is clear we should define a test temperature at which the grading will be done and asphalt compared, (Penetration grade system is done on 25⁰c and Viscosity Test is carried out on 135⁰c) The study proved that same penetration grade of asphalt 60/70 from different sources has different stiffness and hence different engineering properties. The study recommended adapting Viscosity Grade System in Sudan for selecting Asphalt to be used in HMA en_US
dc.description.sponsorship Sudan University of Science and Technology en_US
dc.language.iso en en_US
dc.publisher Sudan University of Science and Technology en_US
dc.subject Civil Engineering en_US
dc.subject Highways en_US
dc.subject Asphalt - Sudan en_US
dc.title Adaptation of Viscosity Grade System In selection of Asphalt In Sudan en_US
dc.title.alternative مواءمة نظام درجة اللزوجة في إختيار الأسفلت في السودان en_US
dc.type Thesis en_US

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