A Windy morning greeted the hundreds of students, members and their guests at this year’s Annual Concrete Boat Race Day. The beautiful Benoni Sailing Club at Homestead Lake, hosted this annual event yet again which effortlessly accommodated this emergent event in the Inland Branch calendar of activities.
The day started with the judging of the boats that had been constructed by the university students from UJ and Tukkies. The 47 concrete boats were lined up along the lakeside, having been carefully and enthusiastically constructed by university students to prescribed rules in terms of design, dimensions, weight and materials. This year the design theme of the boats was set at ‘Red Indian’ canoes, which brought forth some ‘new ideas’ on how the American Indian designed his craft!
The judges this year were:
Retselisitsoe Maliehe – President of the Concrete Society
Marius Grassman – Concrete Testing Equipment
Andre Jooste – Royal HaskoningDHV
George Evans – PPC Cement
The construction of the boats had to adhere to a very strict criterion, the most important of which was that they must float! The boats had to be made from a freely available, commonly-used cement, mortar or concrete. Lightweight aggregate could be used, and the binding agent had to be predominantly cementations in composition.
Limited quantities of other materials were allowed, provided that they did not replace the binding action of the cement. The strength and stiffness of the boat had to be entirely due to the cementing action between hardened concrete or mortar and its reinforcement. Non-concrete parts were not allowed to contribute to the strength or structural integrity of the boat and could be removed at the judges’ discretion.
Press release
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[Annual Concrete Society Boat Race brings much excitement to the industry ]
[https://youtu.be/9pzFM2Kq8AI]
