Browsing Research Articles (Civil Engineering) by Title

Browsing Research Articles (Civil Engineering) by Title

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  • smAvo and smaTo : a fruity odyssey of smart sensor platforms in Southern Africa 
    Broekman, Andre; Steyn, Wynand Jacobus Van der Merwe; Steyn, J.L.P. (Johannes); Bill, Malick; Korsten, Lise (Elsevier, 2020-10)
    Avocado and tomato production are key agricultural sectors for many economies including South Africa. The quality of avocadoes and tomatoes that reach consumers is directly dependent on the handling at the postharvest ...
  • Social life cycle inventory for pavements – a case study of South Africa 
    Blaauw, Sheldon Alfred; Maina, J.W. (James); Grobler, Louis J. (Elsevier, 2021-06)
    Social consideration, assessed using a social life cycle assessment (S-LCA), is a relatively new concept that has yet to be standardised. Attempts at measuring social sustainability in pavement management have been made ...
  • Soil collapse from an effective stress perspective 
    Brink, George Eksteen; Heymann, Gerhard (South African Institution of Civil Engineering, 2014-10)
    The behaviour of collapsible soil is often quantified by conducting a Collapse Potential Test or double oedometer test. However, these tests interpret the soil behaviour in terms of total stress, while it is well known ...
  • Some lessons from Lagos 
    Venter, C.J. (Christoffel Jacobus) (South African Institution of Civil Engineering, 2009-09)
    In June 2009 the City of Tshwane's BRT Project Office hosted a World Bank-led workshop on public transport restructuring. A highlight was the presentations made by colleagues from Nigeria on their experiences with implementing ...
  • Some round timber pole connections 
    Burdzik, W.M.G. (South African Institution of Civil Engineering, 1997)
    The paper looks at alternative round timber pole connections that make monoplanar structures and trusses a possibility. Three different systems are discussed and where test results are available, these are compared with ...
  • Spherical void formers in concrete slabs 
    Marais, Cornelle; Robberts, John M.; Janse van Rensburg, Ben W. (South African Institution of Civil Engineering, 2010-10)
    Large span concrete flat-slab systems with internal spherical void formers (SVF) have been used in Europe for over a decade. They are bi-axially reinforced concrete flat-slab systems with a grid of internal spherical void ...
  • Splitting tensile test for fibre reinforced concrete 
    Denneman, Erik; Kearsley, Elsabe P.; Visser, Alex T. (Springer, 2011-10)
    The splitting tensile test is a much used method to determine the tensile strength of concrete. The conventional test procedure is known to have a number of limitations related to size effect and boundary conditions. ...
  • State-of-the-art investigation of wind turbine structures founded on soft clay by considering the soil-foundation-structure interaction phenomenon – optimization of battered RC piles 
    Gravett, Dewald Zane; Markou, George (Elsevier, 2021-05)
    Nonlinear dynamic modelling of full-scale wind turbine structures and soil-structure interaction considerations using the 3D detailed approach is the most accurate method of investigating the mechanical response of these ...
  • The stiffess of unsaturated railway formations 
    Otter, Louise; Clayton, Christopher Robert I.; Priest, Jeffery A.; Grabe, Petrus Johannes (Sage, 2016-05)
    The rational design of a substructure to support a rail track requires an estimation of the stiffness value of the formation on which it is to be built. Stiffness values derived from back-analyses of deformations of the ...
  • Stochastic modelling for the maintenance of life cycle cost of rails using Monte Carlo simulation 
    Vandoorne, Rick; Grabe, Petrus Johannes (Sage, 2018-04)
    The need for decision support systems to guide maintenance and renewal decisions for infrastructure is growing due to tighter budget requirements and the concurrent need to satisfy reliability, availability and safety ...
  • Structural performance deterioration of corroding reinforced concrete columns in marine environments 
    Chen, Hua-Peng; Jiang, Yu; Markou, George (Elsevier, 2022-10)
    In aggressive marine environments, rebar corrosion caused by chloride ion ingression in concrete is a critical factor leading to premature failure of in-service reinforced concrete (RC) structures. This paper investigated ...
  • Supply and pricing strategies of informal rural transport providers 
    Venter, C.J. (Christoffel Jacobus); Molomo, Malesela; Mashiri, Mac (Elsevier, 2014-12)
    Informal paratransit operators using a range of vehicle types (including pickup trucks, small buses, and motorcycles) are a major provider of mobility in rural areas of the developing world. The paper describes a mixed ...
  • Tapping untapped renewable energy 
    Van Dijk, Marco; Van Vuuren, Fanie; Bhagwan, Jay; Kurtz, Adriaan (South African Institution of Civil Engineering, 2012-06)
    In water distribution networks in South Africa, water is often fed under gravity from a higher reservoir to another reservoir at a lower level. The high pressure head at the receiving reservoir is then dissipated through ...
  • Tax or toll? GPS-based assessment of equity impacts of large-scale electronic freeway tolling in Gauteng, South Africa 
    Venter, C.J. (Christoffel Jacobus); Joubert, Johannes Willem (Transportation Research Board of the National Academies, 2014)
    As user charging increasingly supplements taxation as a transport financing mechanism worldwide, the need to measure and understand its distributional impacts across affected groups grows more critical. The case of the ...
  • TD-DAQ : a low-cost data acquisition system monitoring the unsaturated pore pressure regime in tailings dams 
    Basson, Jack; Broekman, Andre; Jacobsz, Schalk Willem (Elsevier, 2021-10)
    Tailings dams are large, often self-contained, storage facilities of mine residue. On self-contained tailings dams the tailings material itself is used to raise the containment embankments holding newly deposited residue. ...
  • Temperature rise and initial shrinkage of alkali-activated fly ash cement pastes 
    Shekhovtsova, Julia; Kearsley, Elsabe P.; Kovtun, Maxim (Thomas Telford, 2016)
    This paper reports on core temperature development and initial shrinkage of fly ash cement pastes activated with sodium hydroxide solution at different concentrations during elevated-temperature curing at 60°C. The results ...
  • Towards a mix design model for the prediction of permeability of hot-mix asphalt 
    Blaauw, Sheldon Alfred; Maina, J.W. (James); Horak, Emile (Elsevier, 2019-10)
    Hot-Mix Asphalt (HMA) is a designed pre-mix of graded aggregates and bituminous-based binder, hot applied on road pavements to provide a smooth and safe riding surface and protect the underlying layers. Current HMA mix ...
  • Towards predicting the buckling and crushing strength of graded SA pine with high slenderness ratios 
    Burdzik, W.M.G.; Skorpen, Sarah Anne (South African Institution of Civil Engineering, 2020-03)
    There is an apparent increase in failure of timber truss web members or compression chords. This paper seeks to reassess buckling of the compression chords with specific focus on web members. There are two possibilities ...
  • Towards the application of unsaturated soil mechanics in practice 
    Gaspar, Tiago Alexandre Valentim; Jacobsz, Schalk Willem (South African Institution of Civil Engineering, 2019-04)
    It has long been recognised that the principles of conventional saturated soil mechanics can be an oversimplification of soil behaviour, particularly in the arid climate of southern Africa. This knowledge has led ...
  • Track deflection measurement using particle image velocimetry 
    Grabe, Petrus Johannes (South African Institution of Civil Engineering, 2009-05)
    A new optical track deflection measurement device was developed for Transnet Freight Rail (Track Technology) to be used for track research carried out in both field and laboratory investigations. The functioning and ...