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SEALS Focus Area

SEALS FOCUS AREA Early life performance of non-homogenous modified binder (Bitumen Rubber) grade S-R2 in Namibia Herman Mostert, Element Consulting Engineers, Namibia Abstract Bitumen Rubber binders have been used in Chip seals in South Africa since the early 1980’s. Over the past 3 decades the use thereof has extended to southern Africa, including Namibia where

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Download Presentation Abstract A major behavioural characteristic of surfacing seals includes aggregate re-orientation which involves the re-orientation of seal aggregates, onto their respective least dimensions, during and after construction, to ensure a lower risk of aggregate loss and adhesion problems. The purpose of this investigation is to gain an understanding of the effect that traffic

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Abstract and Videos The video, Chip Seal Construction Process, summarizes the construction process of a triple seal in South Africa. A triple seal has three layers of aggregate; 20mm + 7mm + 7mm; and three spray coats of binder, typically but not restricted to; S-R1 + S-E1 + Cat65%. The second video, Abaqus 3D Chip

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