- SARF Northern Region AGM And Seminar – Wednesday 14th November 2018.
- 2018 SARF/IRF/PIARC Regional Conference for Africa
- Road Safety for Engineering 18th September 2018
- 2018 SARF/IRF/PICRC – CALL FOR ABSTRACTS
- SARF / IRF/ PIARC Regional Conference for Africa 9th to 11th October 2018
- Northern Regional 11th Golf Day
- SARF AGM Gala Dinner 2017
- SANRAL presentation – EIA Legislation Northern Region Annual General Meeting and Seminar – 24 October 2017
- 2nd IRF Africa Regional Congress Windhoek 11 – 13 July 2017
- Managing Infrastructure Assets Course in Gauteng on July the 17th to the 19th 2017
- SARF NMT 25 May 2017
- SARF supports the World Transport Convention in China in 2017
- Northern Regional 10th Golf Day
- Road Safety
- Road Funding
- Media Releases
Pavement Rehabilitation by Cold Recycling / Bitumen Stabilisation – 22 September 2021
The challenges faced by Road Authorities in South Africa are not different from most other countries; everyone is facing budget constraints coupled with a steady decline in the quality of their road network. For South Africans, the challenge is acute because the size of their road network ranks 9th in the world whilst their GDP fall below the median. Stated differently, South Africa is facing a bigger challenge than most countries due to the finances available to maintain and improve their vast road network. This is perhaps the primary reason for South African engineers to be at the forefront of innovative solutions to address the growing pothole pandemic.
Thanks to the advert of large recycling machines, reusing the material in existing pavements has become common practice on most rehabilitation projects worldwide, a practice that offers significant cost benefits. However, it is the development of bitumen stabilised material BSM technology that offers far greater benefits due to the enhancement of material properties, allowing BSM layers to play a greater role in load spreading coupled with a drastic reduction in moisture sensitivity, thereby boosting cost savings.
This proudly South African technology was born some forty years ago when Adriaan Bergh applied bitumen emulsion to address premature failures on a highway. Early successes attracted the research and development efforts needed to grow this technology to where it is today, used on all continents (except the cold one), all thanks to South African innovation. The latest developments of this technology were captured in the 3rd Edition of the Technical Guideline TG2, sponsored by SABITA and published in 2020. The objective of the seminar is to assist practitioners to utilise this publication to evaluate bitumen stabilised material as an option for pavement rehabilitation and upgrading projects.
- Characteristics of bitumen stabilised materials (BSM)
- Bitumen stabilizing agents (bitumen emulsion and foamed bitumen)
- Appropriate materials for stabilizing with bitumen emulsion and / or foamed bitumen
- Pavement investigations required for all rehabilitation projects (with a focus on in situ recycling)
- Laboratory mix designs for determining the optimal addition of bitumen, active filler and the properties / characteristics of the treated material, using innovative tests
- Designing appropriate pavement structures that include BSM layers
- Constructing pavement layers using BSM, both in situ recycling and in plant treatment
- Surveys and tests required for controlling quality during and after construction.
Who should attend?
All delegates will be expected to have a basic understanding of construction materials, design concepts relevant to pavement rehabilitation and have worked on road construction sites.
Presenters: Dave Collings and Prof Kim Jenkins
Delegates can claim 1 ECSA CPD point
Sorry, this event is expired and no longer available.