Refinement of air-borne chloride exposure classes for RC structures in the Cape Peninsula

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dc.contributor.advisorBeushausen, Hans-Dieteren_ZA
dc.contributor.authorAlao, Olukayode Olawaleen_ZA
dc.date.accessioned2015-08-07T10:57:32Z
dc.date.available2015-08-07T10:57:32Z
dc.date.issued2015en_ZA
dc.descriptionIncludes bibliography.en_ZA
dc.description.abstractThe assessment in this study is aimed at informing and modifying the design method for RC structures that are not in direct contact with seawater but are within the marine environment. The evaluation of the severity of the exposure environment will enable an informed design of concrete structures that satisfies their desired service life and durability performance. In order to classify the severity of exposure, this study measured the concentration of airborne chlorides of select locations in the Cape Peninsula area, using the wet candle device. Five monitoring stations were exposed around the Cape Peninsula area at varying distances of 50 m, 150 m, 250 m, 2.7 km and 13.5 km from the coastline. Samples from the stations were collected twice every month over a period of 12 months and analysed for their chloride deposition rates. A site-based study which involved the collection of concrete samples from existing structures at varying distances from the sea and investigating their chloride content was also carried out. In addition, data from previous forensic investigations (chloride profiles of structures) carried out from 1996 – 2013 were also collated and analysed. Both analyses were carried out in order to further validate if the distance of a RC from the coastline influenced the chloride deposition rate and surface chloride content of the structure. The local climate and weather conditions, with a focus on the dominating wind direction, wind speed, precipitation and relative humidity were also examined.en_ZA
dc.identifier.apacitationAlao, O. O. (2015). <i>Refinement of air-borne chloride exposure classes for RC structures in the Cape Peninsula</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering. Retrieved from http://hdl.handle.net/11427/13644en_ZA
dc.identifier.chicagocitationAlao, Olukayode Olawale. <i>"Refinement of air-borne chloride exposure classes for RC structures in the Cape Peninsula."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 2015. http://hdl.handle.net/11427/13644en_ZA
dc.identifier.citationAlao, O. 2015. Refinement of air-borne chloride exposure classes for RC structures in the Cape Peninsula. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Alao, Olukayode Olawale AB - The assessment in this study is aimed at informing and modifying the design method for RC structures that are not in direct contact with seawater but are within the marine environment. The evaluation of the severity of the exposure environment will enable an informed design of concrete structures that satisfies their desired service life and durability performance. In order to classify the severity of exposure, this study measured the concentration of airborne chlorides of select locations in the Cape Peninsula area, using the wet candle device. Five monitoring stations were exposed around the Cape Peninsula area at varying distances of 50 m, 150 m, 250 m, 2.7 km and 13.5 km from the coastline. Samples from the stations were collected twice every month over a period of 12 months and analysed for their chloride deposition rates. A site-based study which involved the collection of concrete samples from existing structures at varying distances from the sea and investigating their chloride content was also carried out. In addition, data from previous forensic investigations (chloride profiles of structures) carried out from 1996 – 2013 were also collated and analysed. Both analyses were carried out in order to further validate if the distance of a RC from the coastline influenced the chloride deposition rate and surface chloride content of the structure. The local climate and weather conditions, with a focus on the dominating wind direction, wind speed, precipitation and relative humidity were also examined. DA - 2015 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2015 T1 - Refinement of air-borne chloride exposure classes for RC structures in the Cape Peninsula TI - Refinement of air-borne chloride exposure classes for RC structures in the Cape Peninsula UR - http://hdl.handle.net/11427/13644 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/13644
dc.identifier.vancouvercitationAlao OO. Refinement of air-borne chloride exposure classes for RC structures in the Cape Peninsula. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 2015 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/13644en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Civil Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherCivil Engineeringen_ZA
dc.titleRefinement of air-borne chloride exposure classes for RC structures in the Cape Peninsulaen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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