Department of Civil Engineering
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Recent Submissions
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Investigation into increasing short-duration rainfall intensities in South Africa
(Water Research Commission, 2015-04)Extreme storms in South Africa and specifically in the Western Cape have been responsible for widespread destruction to property and infrastructure, even leading to displacement and death. The occurrences of these storms ...
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Conceptual framework for sewer pump problems allowing for fuzzy logic application
(Water Research Commission, 2015-04)Sewer pump station problems in separate sewer systems (separate from stormwater drainage systems) were investigated in order to derive a conceptual framework for decision making. Notwithstanding the fundamental service ...
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Analysis of the Hydrodynamics of rectangular plunging Jets and the subsequent scouring in broken-up Rock Beds
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: The scour mechanisms of rock are highly variable, equally so the geotechnical and hydrodynamic conditions of each study area, which complicate the prediction of scouring. Cases such as Kariba Dam and ...
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The Performance of Locally Produced Supplementary Cementitious Materials When Incorporated In Concrete
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: The production of cement has a strenuous impact on the environment. Nonetheless, it is required by the construction industry as a key parameter for socio-economic development. Supplementary cementitious ...
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Evaluation of minimum pressure head during peak flow as design criterion for water distribution systems
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: One of the factors that drives infrastructure cost for water distribution systems (WDS), whether it being the cost of newly designed systems or the cost for maintaining and upgrading existing systems, ...
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Wind Engineering Science and its role in optimising the design of the built environment
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Wind Engineering and Building Aerodynamics constitutes a relatively recent technical science (spanning the last sixty years or so), which integrates three principal domains and the related pools of knowledge ...
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Maintenance engineering standards to fulfil the legal duty of road authorities towards safe roads
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: The road network is a mode of communication that is important for the movement of people and the distribution of goods. Ownership of roads is vested in public entities. The provision of roads follows need, ...
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Analysis of the transition between Tubular Modular Track and ballasted railway
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Tubular Modular Track (TMT) is a relatively new rail design invented in 1989. The system is ballastless and is designed to continuously support the rails on twin reinforced concrete (RC) beams which are ...
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Investigation into the Effect of Fibre Geometry on the Performance of Macro Synthetic Fibre Reinforced Concrete
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Unreinforced concrete has the inherent shortcomings of low tensile strength and low strain capacity at fracture (ACI Committee 544, 2002). In order to overcome these shortcomings, fibres can be added to ...
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Management by measurement: a performance management approach for assessing ITS (Intelligent Transport Systems) projects in South Africa
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Over the past decade, the South African transport environment has actively started to adapt a technology-driven setting. Intelligent Transport Systems (ITS) applications such as Advanced Traffic Management ...
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Fire spreading in South African low-cost settlements "A physics-based model"
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: risk of fire is increasing due to urbanization, industrialization and development of cities with dense buildings. Since low cost settlements are poorly serviced and are densely built urban areas with poor ...
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Development and application of a multi-period pipe replacement model utilising risk-based prioritisation for water distribution systems
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: The decision on whether to replace a pipe, with specific reference to a water distribution network, can be complicated by several aspects in the decision making process, such as available funding and ...
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Cracking of Plastic Concrete in Slab-Like Elements
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: The cracking of plastic concrete involves two cracking types namely: plastic settlement cracking which is caused by differential settlement of the concrete and plastic shrinkage cracking which is caused ...
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The Reliability Margin of the Direct Strength Method Prediction Model for Cold-Formed Steel Members
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: SANS 10162-2, the South African standard for structural purpose cold-formed steel, allows for design of members to resist loading of compression, bending and combinations of these among others. The focus ...
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Analysing the Behaviour of Soil Reinforced with Polyethylene Terephthalate (PET) Plastic Waste
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Environmental issue effects like natural resource depletion, climatic change and global warming have significantly influenced the innovations in material science and technology with the aim of attaining ...
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Influence of admixtures on the plastic shrinkage cracking of concrete
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Plastic shrinkage cracking (PSC) is a well-known form of cracking in concrete at early ages and causes major concerns with regard to durability and aesthetical appearance of concrete structures. PSC is ...
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Risk assessment for the importation of Bitumen for road construction into South Africa
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: The purpose of this research project was to identify, assess and model the risks associated with the importation of bitumen into South Africa. Bitumen has firmly established itself as a product which is ...
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Numerical modelling of performance and failure criteria for surfacing seals
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Finite element modelling of complex structures such as bituminous surfacing seals has become a viable practice to obtain insight into the structure's response behaviour. These responses are difficult, ...
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Physical Modelling Investigation of Rock Scour Extent Due to a Plunging Jet for Typical High Head Dams
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Hydraulic structures can release high-velocity plunging jets, which can result in scouring of the rock downstream of the structure. The extent of the scour hole must be predicted and analysed to ensure ...
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Empirical study of heavy vehicle operating speeds on mountainous downgrades in the Western Cape, South Africa
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Heavy vehicles play a major role in the economic well-being of a country through its significant role in moving freight. Therefore any adverse effect to the road freight, from being stuck in traffic to ...
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Methods for determination of coastal development setback lines in South Africa.
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Implementation of the ICM Act (2008) has made it a legal requirement to determine coastal setback lines in all the coastal provinces of South Africa. Coastal development setback lines (or “coastal management ...
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End-of-trip facilities for cyclist and realignment of current South African bicycle legislation
(Stellenbosch : Stellrnbosch University, 2016-03)ENGLISH ABSTRACT: In this thesis, the need to provide more End-of-Trip Facilities (EOTF) for cyclists (and/or other Non-Motorised Transport (NMT) users) is highlighted. Almost all Government sectors (national, provincial ...
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Time-dependent Behaviour of Cracked Steel Fibre Reinforced Concrete: from Single Fibre Level to Macroscopic Level
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: The addition of steel fibres to a concrete matrix is known to improve the material’s post crack mechanical behaviour under short term loading conditions. However, limited information is available on the ...
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Simulating domestic hot water demand by means of a stochastic end-use model
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: The heating of domestic hot water (DHW) requires a substantial component of the energy demand in the residential sector, yet limited DHW demand information is available. An improved understanding of DHW ...
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Ski-jump energy dissipation : design of a ski-jump to maximise energy dissipation and aeration.
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: One of the most effective and economical methods for the dissipation of hydraulic energy from flood waters is to project the flows into a free trajectory jet form to a location where the impact creates a ...
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Sediment transport dynamics in dam-break modelling
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: The prediction of breach characteristics during earth embankment dam-break modelling due to overtopping is dependent on the accurate modelling of the intrinsic breaching processes such as flow hydraulics, ...
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The Effect of Variation Orders on Project Cost and Schedule Overruns
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Cost and schedule overruns are common occurrences in construction projects, regardless of the various studies that have been done on the subjects. These overruns can occur for a wide variety of reasons; ...
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A model for temperature control in concrete dams
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Temperature control measures need to be implemented during the construction of concrete dams in order to avoid thermal cracking. Currently, only fragmented guidance is available to the engineer who wants ...
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Design of stormwater ponds towards the reduction of metal toxins in surface waters that are utilised for South African primary food production
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: This research originated from a need for civil engineering practice to address metal pollution in stormwater runoff. Specific emphasis was placed on metals that could affect the quality of crops, livestock ...
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The identification and modelling of rockfalls for protection measures in the Western Cape
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Natural slopes and man-made cuttings in weathered, highly jointed or fractured rock with unfavourable bedding planes can result in the release of rock blocks either from above these slopes and cuttings ...
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