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AT Central is proud to present an on-line workshop during which feedback will be given on the recent Eurasphalt & Eurobitume Congress. During this event, promising young new professional colleagues will be presenting some of the newest developments in the fields of asphalt and bitumen technology. This webinar has been registered  for CPD accreditation. CPD

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How do you predict and, critically, prevent asphalt pavement failure due to moisture sensitivity? Our specialist presenters will provide solutions in the form of test methodologies, case studies and technologies to help you avoid potentially costly damage. Moisture susceptibility is a primary cause of distress in asphalt surfaced pavements. Asphalt mixes are susceptible to moisture

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NOTIFICATION OF ANNUAL GENERAL MEETING

This post is only viewable by logged in members. In terms of Section 6 of the Constitution of the Society, you are hereby advised that the 28th Annual General Meeting of the Society for Asphalt Technology will be held via a Zoom meeting on Wednesday 19th May 2021.

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Cutting edge technology and products are employed in the bituminous surfacing of South Africa’s roads. The industry prides itself on being up to date with the latest local and global wisdom in surfacing treatments. As practitioners it is up to each one of us to ensure that our knowledge remains relevant. To this end, the Society for Asphalt Technology has invited some of the country’s leading experts to unpack the latest guidelines on surface seals & Sabita Manual 40.

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Georges Mturi points out that about 30% of bitumen used in asphalt in South Africa is modified. In this paper he discusses the context, typical additives used, guidelines and specifications, as well as selection and classification of additives. In addition to performance, Georges explores aspects such as storage, expertise required, availability of base binders and modifier, shelf life, blending and quality control. His rule of thumb – use locally available aggregate and bitumen sources and only use additives where normal binders are limited in performance.

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Ensure that the project mix materialises on site by sticking to some basic principles. This presentation enlarges on the basics such as quality control of mixes containing reclaimed asphalt (RA), consistency of RA fractions in the mix, aspects to consider at stockpiles, moisture content, and finally sampling, testing and acceptance control as for conventional asphalt mixes.

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