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dc.description.abstractWhen traffic on earth or gravel roads increases to a certain level it becomes necessary to provide a surface with lower maintenance and vehicle operating costs and without the dust nuisance in dry weather. In the majority of cases the most appropriate form in Africa is provided by a bituminous surfacing, particularly since this allows a stage construction process of economical road improvements to be adopted.For the first stage a cheap process, a single or double surface dressing (spray and chip treatment) prevents flying dust and surface attrition.The road is'sealed against ingress of rain thus maintaining the road structure in a stronger condition with resultant reduction of need for maintenance.The design and technique of construction of surface dressings for African conditions is discussed in the light of experience in Africa, Europe and Australia.en
dc.titleConference on highway engineering in Africa Addis Ababa April 1974: Paper C the design and construction of bituminous road surfacingsen
ags.descriptionNotesOrganized by the Economic commission for Africa with the co operation of the British and French governments.en
ags.publisherPlace[Addis Ababa]:en
ags.publisherNameUN. ECA,en
dc.coverage.spatialAFR
dc.date.accessioned2011-01-07T18:17:46Z
dc.date.available2014-04-16T12:07:40Z
dc.date.issued1974-04
dc.identifier.urihttps://hdl.handle.net/10855/1995
dc.format.extent41 p.
dc.languageeng
dc.typeBook
uneca.subject.fulltaxonomyUNBIS::NATURAL RESOURCES AND THE ENVIRONMENT::ENERGY RESOURCES::COAL
uneca.subject.fulltaxonomyUNBIS::INDUSTRY::CONSTRUCTION INDUSTRY AND ENGINEERING::ROAD CONSTRUCTION
uneca.subject.fulltaxonomyUNBIS::NATURAL RESOURCES AND THE ENVIRONMENT::RESOURCES (GENERAL)::NATURAL RESOURCES
uneca.subject.fulltaxonomyUNBIS::INDUSTRY::CONSTRUCTION INDUSTRY AND ENGINEERING::BUILDING MATERIALS
uneca.subject.fulltaxonomyUNBIS::RESSOURCES NATURELLES ET ENVIRONNEMENT::RESSOURCES ENERGETIQUES::CHARBON
uneca.subject.fulltaxonomyUNBIS::RECURSOS NATURALES Y MEDIO AMBIENTE::RECURSOS ENERGETICOS::CARBON
uneca.subject.fulltaxonomyUNBIS::INDUSTRIE::INDUSTRIES ET TECHNIQUES DE LA CONSTRUCTION::CONSTRUCTION DE ROUTES
uneca.subject.fulltaxonomyUNBIS::INDUSTRIA::INDUSTRIA E INGENIERIA DE LA CONSTRUCCION::CONSTRUCCION VIAL
uneca.subject.fulltaxonomyUNBIS::RESSOURCES NATURELLES ET ENVIRONNEMENT::RESSOURCES NATURELLES::RESSOURCES NATURELLES
uneca.subject.fulltaxonomyUNBIS::RECURSOS NATURALES Y MEDIO AMBIENTE::RECURSOS NATURALES::RECURSOS NATURALES
uneca.subject.fulltaxonomyUNBIS::INDUSTRIE::INDUSTRIES ET TECHNIQUES DE LA CONSTRUCTION::GENIE CIVIL
uneca.subject.fulltaxonomyUNBIS::INDUSTRIA::INDUSTRIA E INGENIERIA DE LA CONSTRUCCION::INGENIERIA CIVIL
uneca.subject.fulltaxonomyUNBIS::INDUSTRIE::INDUSTRIES ET TECHNIQUES DE LA CONSTRUCTION::MATERIAUX DE CONSTRUCTION
uneca.subject.fulltaxonomyUNBIS::INDUSTRIA::INDUSTRIA E INGENIERIA DE LA CONSTRUCCION::MATERIALES DE CONSTRUCCION
uneca.workflow.processedtrue
ags.creatorPersonalHitch L.S.
ags.creatorCorporateUnited Nations. Economic Commission for Africa
ags.creatorConferenceUN. ECA conference on highway engineering in Africa (1974, April Addis Ababa)
ags.subjectThesaurusCOAL
ags.subjectThesaurusROAD CONSTRUCTION
ags.subjectThesaurusNATURAL RESOURCES
ags.subjectThesaurusCIVIL ENGINEERING
ags.subjectThesaurusBUILDING MATERIALS
ags.subjectThesaurusCHARBON
ags.subjectThesaurusCARBON
ags.subjectThesaurusCONSTRUCTION DE ROUTES
ags.subjectThesaurusCONSTRUCCION VIAL
ags.subjectThesaurusRESSOURCES NATURELLES
ags.subjectThesaurusRECURSOS NATURALES
ags.subjectThesaurusGENIE CIVIL
ags.subjectThesaurusINGENIERIA CIVIL
ags.subjectThesaurusMATERIAUX DE CONSTRUCTION
ags.subjectThesaurusMATERIALES DE CONSTRUCCION
ags.subjectClassification05.01.01 Port
ags.subjectClassification06.01.02 Industrial policy and development
ags.availabilityNumber14696
ags.availabilityNumber1974
ags.availabilityLocationECA-HQ
ags.rights.termsofusepublic
ags.JN14696
uneca.language.supporteden


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