• Mixing the formal with the informal in shared right-of-way systems : a simulation-based case study in Tshwane, South Africa 

  Du Preez, Simeon Johannes; Venter, Christoffel (Elsevier, 2022-03)

  The study uses a microsimulation-based approach to examine the implications of mixing informal and formal operations in shared public transport lanes, based on a real-world Bus Rapid Transit service. The question is relevant ...
• A low-cost, mobile real-time kinematic geolocation service for engineering and research applications 

  Broekman, Andre; Grabe, P.J. (Hannes) (Elsevier, 2021-10)

  Centimetre accurate geolocation service is beneficial to a wide range of applications, ranging from sports engineering, civil infrastructure, autonomous vehicles, surveying to digitisation of historically significant ...
• RailEnV-PASMVS : a perfectly accurate, synthetic, path-traced dataset featuring a virtual railway environment for multi-view stereopsis training and reconstruction applications 

  Broekman, Andre; Grabe, P.J. (Hannes) (Elsevier, 2021-09-23)

  A Perfectly Accurate, Synthetic dataset featuring a virtual railway EnVironment for Multi-View Stereopsis (RailEnV- PASMVS) is presented, consisting of 40 scenes and 79,800 renderings together with ground truth depth maps, ...
• Advancing the digital railway with 4IR technologies 

  Grabe, P.J. (Hannes); Mpye, Godisang David; Vandoorne, Rick; Broekman, Andre; Pienaar, Daniel; Hawley, Chad; Van Schalkwyk, Hein (South African Institution of Civil Engineering, 2021-05)

  The launch of Engineering 4.0 on 30 November 2020 at the University of Pretoria’s Hillcrest campus marked the start of an ambitious endeavour to realise data-driven smart cities and transportation networks.
• Application of unsaturated soil mechanics – two years on 

  Gaspar, Tiago Alexandre Valentim; Vandoorne, Rick; Jacobsz, S.W. (Schalk Willem); Heymann, Gerhard; Grabe, P.J. (Hannes) (South African Institution of Civil Engineering, 2021-04)

  In recent years, technological advancements in the field of unsaturated soil mechanics have helped improve understanding in this field for both researchers and engineering practitioners. Gaspar & Jacobsz (2019) ...
• Evaluation of cr(Vi) reduction using indigenous bacterial consortium isolated from a municipal wastewater sludge : batch and kinetic studies 

  Kholisa, Buyisile; Matsena, Mpumelelo Thomas; Chirwa, Evans M.N. (MDPI, 2021-09-13)

  Hexavalent Chromium (Cr(VI)) has long been known to be highly mobile and toxic when compared with the other stable oxidation state, Cr(III). Cr(VI)-soluble environmental pollutants have been detected in soils and water ...
• Nanotechnology incorporation into road pavement design based on scientific principles of materials chemistry and engineering physics using new‐age (Nano) modified emulsion (NME) stabilisation/enhancement of granular materials 

  Jordaan, Gerrit Jacobus; Steyn, Wynand Jacobus Van der Merwe (MDPI, 2021-09-14)

  The use of naturally available materials not conforming to traditional specifications or standards in the base and sub-base layers of road pavement structures and stabilised with Newage (Nano) Modified Emulsions (NME) ...
• Engineering properties of new-age (Nano) modified emulsion (NME) stabilised naturally available granular road pavement materials explained using basic chemistry 

  Jordaan, Gerrit Jacobus; Steyn, Wynand Jacobus Van der Merwe (MDPI, 2021-10-18)

  Nanoscale organofunctional silanes have been developed, tested and successfully applied to protect stone buildings in Europe against climatic effects since the 1860s. The same nanotechnologies can also be used in pavement ...
• Remote monitoring of a tailings dam using the Internet of Things 

  Jacobsz, S.W. (Schalk Willem); Broekman, Andre; Basson, Jack Adriaan; Vandoorne, Rick; Vermaak, Jan (South African Institution of Civil Engineering, 2020-08)

  Due to their size and often their remoteness, large geotechnical structures such as tailings dams are ideally suited to be observed using smart monitoring technologies. With the arrival of the 4th Industrial Revolution ...
• Covid-19 and the future of public transport in South Africa 

  Venter, C.J. (Christoffel Jacobus); Hayes, Gary; Van Zyl, Nicolaas (South African Institution of Civil Engineering, 2020-10)

  South Africa’s public transport has been (and continues to be) severely affected by the Covid-19 pandemic – initially in terms of restrictions on operations, and lately, as we emerge from lockdown, in terms of reduced ...
• Quantifying the economic benefits of gauge changes on the South African core railway network 

  Demmerez de Charmoy, Christian Pierre; Grabe, P.J. (Hannes) (South African Institution of Civil Engineering, 2020-09)

  In its white paper, the Department of Transport (2017) envisages a future South African core railway network which requires the conversion and construction of over 8 500 km of standardgauge railway track by 2050. The ...
• The optimization of energy recovery device sizes and locations in municipal water distribution systems during extended-period simulation 

  Bonthuys, Gideon Johannes; Van Dijk, Marco; Cavazzini, Giovanna (MDPI, 2020-08-31)

  Excess pressure within water distribution systems not only increases the risk for water losses through leakages but provides the potential for harnessing excess energy through the installation of energy recovery devices, ...
• The effect of soil-structure interaction on the nonlinear dynamic response of reinforced concrete structures 

  Mourlas, Christos; Khabele, Neo; Bark, Hussein A.; Karamitros, Dimitris; Taddei, Francesca; Markou, George; Papadrakakis, Manolis (World Scientific Publishing, 2020-10)

  Investigating the nonlinear dynamic response of reinforced concrete (RC) structures is of significant importance in understanding the expected behavior of these structures under dynamic loading. This becomes more crucial ...
• Fundamental principles ensuring successful implementation of new-age (Nano) modified emulsions (nme) for the stabilisation of naturally available materials in pavement engineering 

  Jordaan, Gerrit Jacobus; Steyn, Wynand Jacobus Van der Merwe (MDPI, 2021-02)

  Good transportation systems are pre-requisites to economic development. Empirically developed, archaic test methods are traditionally used for materials classification used in road construction. This system normally ...
• Evaluation of cost-effective modified binder thin chip and Cape seal surfacings on an anionic nano-modified emulsion (Nme)-stabilised base layer using accelerated pavement testing (apt) 

  Jordaan, Gerrit Jacobus; Steyn, Wynand Jacobus Van der Merwe; Broekman, Andre (MDPI, 2021-03)

  Emulsion stabilisation of base layers surfaced with chip seals often proves problematic, with chips punching into the base and early distress. This can be aggravated by the use of modified binders that restricts the ...
• The interception capabilities of slotted drains as pavement surface drainage systems 

  Jansen van Vuuren, Barend; Van Dijk, Marco; Steyn, Wynand Jacobus Van der Merwe (South African Institution of Civil Engineering, 2020-12)

  The following two slotted drain installation scenarios were reviewed in this paper: a slotted drain operating individually without a median barrier and a slotted drain operating with an adjacent barrier installed along ...
• Development of economic, practical and green ultra-high performance fiber reinforced concrete verified by particle packing model 

  Vatannia, Sharifeh; Kearsley, Elsabe P.; Mostert, Derek (Elsevier, 2020-12)

  Ultra High Performance Fiber Reinforced Concrete (UHPFRC) is a type of concrete which possess very high compressive strength (more than 150 MPa) and high ductility which makes it a suitable material for manufacturing ...
• The effect of increased axle loading on the behavior of heavily overconsolidated railway foundation materials 

  Mpye, Godisang David; Grabe, P.J. (Hannes) (Elsevier, 2021-03)

  The benefits of increased axle loading in the railway industry are well-appreciated to such an extent that increased axle loading has become a themed topic of interest across all disciplines of railway engineering. However, ...
• Enhanced dynamic simulation approach towards the efficient mining thermal energy supply with improved operational flexibility 

  Rosado-Tamariz, Erik; Genco, Filippo; Campos-Amezcua, Alfonso; Markou, George; Batres, Rafael (Wiley, 2021-03)

  This paper presents a thermal power plant retrofitting approach focused on improvements in the operational flexibility of existing combined cycle power plants dedicated to providing thermal energy for medium and low-temperature ...
• Finite element modelling of plain and reinforced concrete specimens with the Kotsovos and Pavlovic material model, smeared crack approach and fine meshes 

  Markou, George; Roeloffze, Wynand (Sage, 2021-06)

  Modelling of concrete through 3 D constitutive material models is a challenging subject due to the numerous nonlinearities that occur during the monotonic and cyclic analysis of reinforced concrete structures. Additionally, ...

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