Research Projects
2023 – (2025): Primary investigator researching the performance characteristics of alternative binders in bituminous road pavement materials. The research aims to evaluate asphalt containing sustainable bitumen modifiers, extenders or direct replacement in terms of short-term rutting, long-term fatigue, as well as durability aspects such as water susceptibility and permeability. The rheology of the bituminous mixtures are also analysed. Alternatives currently under consideration include lignin and recycled rubber tyres. Collaborator with the NRF.
2023 – (2024): Primary supervisor in investigating the performance of open-graded rubber-modified asphalt briquettes when subjected to accelerated pavement testing via the Model Mobile Load Simulator (MMLS). Collaborator with industry partner, AECI Much Asphalt.
2022 – 2023: Co-supervisor in measuring effectiveness of surface rejuvenator spray or slurry type applications to kerb gravel loss and stripping of mature ultra-thin friction layers. The project includes evaluating treated and pre-treated cores with various permeability tests, computerised tomography of the cores, and evaluating the recovered binder properties with rheological and FTIR analysis. Collaborators with industry partners, TOSAS and SRT.
2018 – 2021: PhD candidate developing models for the ageing and rheology of surfacing seal binders in South Africa. The work built on the project below. The development of rheology indicators and optimised numerical equation model parameters were applied to analyse the primary influencers on ageing paths and develop a machine learning voting regression model to correlate binder rheology to surfacing age. Collaborator with the Wilhelm Frank Foundation.
2016 – 2018: MEng candidate investigating the rheological performance of recovered bituminous surfacing treatment binders. The project included recovering binders from road surfacing specimens retrieved throughout South Africa and evaluating their rheology indicators. Collaborator with SANRAL.
Journal Papers
2023 Goosen, ES & Jenkins, KJ. “Understanding Bitumen Aging through Interrelationships and Aging Ratios”, Transportation Research Record, First published online February 2, 2023, DOI: 10.1177/03611981221147519
2022 Goosen, ES & Jenkins, KJ. “Evolution of the Viscoelastic Transition with In-Field Aging of Bituminous Surfacing Treatments”, Journal of Testing and Evaluation, Volume 55: Issue 4, DOI: 10.1520/JTE20220271
2022 Goosen, ES & Jenkins, KJ. “The Viscoelastic Transition: a Tool to Determine Equivalent Binder Grade”, Materials and Structures, Volume 55: Article 159, DOI: 10.1617/s11527-022-01990-0
Peer-Reviewed Conference Proceedings
2023 Goosen, E.S & Jenkins, KJ.. “Cluster Analysis to Determine Binder Ageing Ratios for In-Field Bituminous Surfacing Treatments”, Conference on Asphalt Pavement of Southern Africa, South Africa, 15-18 October
2023 Lourens, R.E. & Jenkins, KJ. & Goosen, E.S. & Kasozi, A.M. & Moller, L. & Nel, G.P. “Establishing a Balanced Mix Design for South African asphalt pavements using Semi-circular bending and rheology tests”, Conference on Asphalt Pavement of Southern Africa, South Africa, 15-18 October
2023 Lingenfelder, T. & Goosen, E.S. & Jenkins, KJ. “Evaluation of the Rheological Properties of Recovered Seal Binders”, Conference on Asphalt Pavement of Southern Africa, South Africa, 15-18 October
2023 Von Benecke, T.C. & Gerber, D. & Jenkins, KJ. & Van Zyl, G.D. & Goosen, E.S. “The Influence of Seal Binders and Rheology on Aggregate Orientation”, Conference on Asphalt Pavement of Southern Africa, South Africa, 15-18 October
2023 Baartman, Q. & Jenkins, KJ. & Hefer, A. & Horak, E. & Lambert, J. & Hawkins, H. & Muller, J. & Goosen, E.S. “Measuring effectiveness of surface rejuvenator spray or slurry type applications to kerb gravel loss and stripping of mature ultra-thin friction layers”, Conference on Asphalt Pavement of Southern Africa, South Africa, 15-18 October
2023 Van Zyl, G.D.& Bredenhann, S.J. & Goosen, E.S & Jenkins, KJ.. “Considerations for Implementation of Performance-Grade Binder Specifications for Surface Treatments in South Africa”, Conference on Asphalt Pavement of Southern Africa, South Africa, 15-18 October
2022 Goosen, ES & Jenkins, KJ. “Understanding Bitumen Ageing through Interrelationships and Ageing Ratios”, ISAP Conference, Costa Rica, 25-17 October
2022 Goosen, ES & Jenkins, KJ. “Understanding Bitumen Ageing through Interrelationships and Ageing Ratios”, AAPT Annual Meeting, USA, 12-15 September
2019 Goosen, ES & Jenkins, KJ. “Extraction and Recovery of Bituminous Binders from Chip Seal Samples”, 12th Conference on Asphalt Pavements for Southern Africa, 13-16 October
Local Conferences
2022 Van der Spuy, H & Jenkins, KJ & Goosen, ES & Van Zyl, G. “Seal Binder Rheology at Intermediate Temperatures and its Influence on Stone Orientation”, SATBinderrr Conference, 21-22 September
2022 Goosen, ES. “Differential Ageing in Binder Behaviour the Spectra”, SATBinderrr Conference, 21-22 September
2021 Goosen, ES. “Binder Rheology and Ageing”, SATBinderrr Conference, 9 September
2021 Goosen, ES. “Plastic Strain in Flexible Pavement Design”, SATBinderrr Conference, 9 September
2016 Goosen, ES. “Transport – a catalyst for socio-economic growth and development opportunities to improve quality of life”, 35th Annual Southern African Transport Conference, 4-7 July
Research Supervision
I am fortunate to have had significant opportunities to co-supervision both MEng research (R) and structured (S) students. Recently, I have started leading students as the co- and primary supervisor.
Research Funding
The highlights of my research career as been receiving NRF Thuthuka early-career researcher funding, a Wilhelm Frank PhD scholarship, as well as a Zuid-Afrika Scholarship to spend a semester exchange at TU Delft, NL.
Elaine Simone Goosen | PhD 