• Centrifuge and numerical modeling of liquefied flow and nonliquefied slide failures of tailings dams 

  Charles, W.W.; Crous, Petrus A.; Jacobsz, Schalk Willem (American Society of Civil Engineers, 2023-09)

  Tailings dams have relatively high failure rates throughout the world and the consequences of these failures often result in significant loss of life and damage to the environment and property. However, the triggers and ...
• Centrifuge modelling of piled foundations in swelling clays 

  Gaspar, Tiago Alexandre Valentim; Jacobsz, Schalk Willem; Smit, G.; Osman, A.S. (Canadian Science Publishing, 2024-01)

  A study aimed towards assessing the variation in shaft capacity of piled foundations in swelling clays is presented. At the clay's in-situ water content, the results of pull-out tests on short-length piles revealed no ...
• The effect of different access cavity designs in combination with WaveOne Gold and TruNatomy instrumentation on remaining dentin thickness and volume 

  Vorster, Martin; Van der Vyver, Petrus Jacobus; Markou, George (Elsevier, 2023-01)

  INTRODUCTION : The purpose of this study was to evaluate and compare 2 different access cavity designs in combination with 2 popular single-file preparation systems to see which combination preserves dentin, more specifically ...
• Computationally-efficient high-fidelity nonlinear FEA of seismically isolated post-tensioned RC bridges 

  Markou, George; AlHamaydeh, Mohammad (Elsevier, 2024-02)

  This study presents a novel computationally efficient high-fidelity nonlinear FEA (NLFEA) methodology for prestressed RC bridges constructed in the UAE and seismically isolated with elastomeric bearings. Specifically, the ...
• Pathways to integrating paratransit and formal public transport : case studies from Tshwane, South Africa 

  Mokoma, L.; Venter, Christoffel (Elsevier, 2023-12)

  At its core public transport integration is about the collaboration of actors. Collaboration is elusive and difficult to achieve, especially in developing countries where insufficient regulation and dispersed, quasi-formal ...
• A general framework of high-performance machine learning algorithms : application in structural mechanics 

  Markou, George; Bakas, Nikolaos P.; Chatzichristofis, Savvas A.; Papadrakakis, Manolis (Springer, 2024)

  Data-driven models utilizing powerful artificial intelligence (AI) algorithms have been implemented over the past two decades in different fields of simulation-based engineering science. Most numerical procedures involve ...
• Recent advances in hybrid energy harvesting technologies using roadway pavements : a review of the technical possibility of using Piezo-thermoelectrical combinations 

  Randriantsoa, Ando Ny Aina; Fakra, Damien Ali Hamada; Rakotondrajaona, Luc; Steyn, Wynand Jacobus Van der Merwe (Springer, 2023-07)

  Currently, we are facing an energy transition due to pollution and depletion issues related to fossil energy sources. Among all the efforts to develop alternative green energy sources, there are other energy sources that ...
• Exposure of construction workers to hazardous emissions in highway rehabilitation projects measured with low-cost sensors 

  Blaauw, S.A. (Sheldon); Maina, J.W. (James); O'Connell, Johan (Elsevier, 2022-11)

  Please read abstract in the article.
• Could dedicated infrastructure boost minibus taxi performance? 

  Venter, C.J. (Christoffel Jacobus); De Beer, L.R.; Du Preez, Simeon; Joubert, Johannes Willem (South African Institution Of Civil Engineering, 2022-05)

  Over the last 15 years South Africa has invested heavily in the upgrading of public transport. However, issues such as slow deployment, limited impacts, and financial underperformance of our budding Bus Rapid Transit ...
• Behaviour of ultra-thin continuously reinforced concrete pavements under moving axle loads 

  Kearsley, Elsabe P.; Smit, Martha S. (Taylor and Francis, 2023)

  Concrete pavements are typically considered to be rigid pavements and are designed using principles based on the beam-on-elastic support equations as derived by Westergaard in 1926. Ultra-Thin Continuously Reinforced ...
• Development of a procedure and tool for retrofit hydropower evaluation at South African dams 

  Schroeder, Reinhard; Loots, Ione; Van Dijik, Marco; Coetzee, Gert Louis (South African Water Research Commission, 2023-07)

  South Africa is in a critical power situation and is in dire need of additional generation capacity. Thus, renewable energy sources such as wind, solar and hydropower should be evaluated to identify highpotential and ...
• Performance of pavement temperature prediction models 

  Lekea, Angella; Steyn, Wynand Jacobus Van der Merwe (MDPI, 2023-03)

  Please read abstract in article.
• Characterisation of the hydration products of a chemically and mechanically activated high coal fly ash hybrid cement 

  Du Toit, Grizelda; Van der Merwe, E.M. (Elizabet Margaretha); Kruger, Richard A.; McDonald, James M.; Kearsley, Elsabe P. (MDPI, 2022-01-27)

  Cement companies are significant contributors of the planet’s anthropogenic CO2 emissions. With increased awareness of the substantial volume of CO2 emissions from cement production, a variety of mitigation strategies ...
• A comparison of bleeding measurement techniques with a proposed method utilising super absorbent polymers 

  Combrinck, R.; Kayondo, M.; Meyer, D.M.; Boshoff, W.P. (Billy) (Springer, 2022-08)

  Bleed water measurement is a critical part for the determination and prediction of the incidence of plastic shrinkage cracking in concrete. This research discusses the different bleeding measurement methods that are largely ...
• The effect of overburden and confined stress state on cave mining propagation 

  Schoeman, Nicholas Kyle; Jacobsz, Schalk Willem; Kearsley, Elsabe P. (Southern African Institute of Mining and Metallurgy, 2022-11)

  A physical modelling approach was adopted to simulate the process of cave mining propagation at various horizontal to vertical stress state ratios, and image data was captured and used to characterize the resulting failure ...
• Field and laboratory research into the undrained behaviour of tailings at the University of Pretoria 

  Jacobsz, Schalk Willem; Narainsamy, Yashay (Southern African Institute of Mining and Metallurgy, 2022-06)

  Several high-impact tailings dam failures around the world in recent years have placed a renewed focus on the stability of tailings dams and pointed to potential shortcomings in traditional drained design and safety ...
• Light-coloured concrete surfacing for urban heat-island mitigation in Southern Africa 

  Mlilwana, Thulani Peter; Kearsley, Elsabe P. (South African Institution Of Civil Engineering (SAICE), 2022-06)

  Global population growth and rapid urbanisation have resulted in the rapid transformation of natural topographies that are now dominated by engineering materials and structures. It is widely recognised that economic ...
• Application of a modern laser technique to evaluate the performance of recycled railway ballast 

  Mvelase, G.M.; Anochie-boateng. J.K.; Grabe, P.J. (Hannes) (South African Institution of Civil Engineering, 2022-12)

  The performance of railway track structure is influenced by the ballast shape properties including roundness, flatness, elongation, sphericity, angularity and surface texture. The challenge is how to accurately measure ...
• The effect of different molar access cavity designs on root canal shaping times using rotation and reciprocation instruments in mandibular first molars 

  Vorster, Martin; Van der Vyver, Petrus Jacobus; Markou, George (Elsevier, 2022-07)

  INTRODUCTION : The aim was to compare the glide path and final preparation times of WaveOne Gold and TruNatomy in conjunction with two different endodontic access cavity designs in extracted human molar teeth. METHODS : ...
• Condition monitoring of train wheels using a cost-effective smart rail pad 

  Van Schalkwyk, Marco Heinrich; Grabe, Petrus Johannes (IOP Publishing, 2022-09)

  This present paper focuses on the condition monitoring of train wheels utilizing an 3D printed rail pad that is embedded with widely available accelerometers and a strain gauge. This smart rail pad was used on a heavy haul ...

View more