Construction World December 2023

BUILDING CONTRACTORS

KENHARDT SOLAR PARK PROJECT

I n the context of the Kenhardt Solar Project, where South Africa grapples with critical energy and water shortages, CHRYSO SA's contribution takes centre stage. CHRYSO’s cutting-edge super plasticiser and retarder played a pivotal role. A total of 2 955 truckloads, or 42 000 litres of additives, were supplied by Scribante Concrete for this monumental project that used 18 814, 50 cubic metres of concrete. The Kenhardt Solar Project emerges as a beacon of hope and a practical solution in the face of South Africa's energy and water challenges. Amidst acute shortages and the pursuit of sustainable alternatives, the significance of renewable energy sources cannot be overstated. This project exemplifies South Africa's commitment to pioneering sustainable solutions in the energy sector. It stands as a testament to vision and innovation, shaping a greener and more sustainable future, not only for South Africa but also for the broader global community. The project, spanning an incredible 9 km by 3 km area, has set the stage for pioneering Construction Innovation Technology that deserves recognition. As the sun rises over the 540-megawatt solar plant, the construction team's dedication becomes evident. Ibhayi Contracting installed 180 000 steel piles concreted in situ, 41 000 tons of steel,

1 million solar panels and a staggering 36 681 221 fixing components, all done at record installation rates with 97% local lab and new innovative installation methods, to tight tolerances all done to the backdrop of the energy crisis in South Africa. Ruwacon, the civil construction contractor, harnessed cutting-edge methods to lay the foundation for this colossal renewable energy venture. The expertly cast 3 420 piles, meticulously positioned to house the crucial battery containers, exemplify the fusion of technology and craftsmanship. Guided by Scribante Concrete, they've embraced advanced techniques, including the use of a new generation super plasticiser and retarder in the concrete mix design, a demonstration of their commitment to excellence. This innovation, without affecting the concrete's workability, allows for a reduction in water content, enhancing durability. Simultaneously, it increases the slump/flow, resulting in superior off-shutter finishes and improved cohesion. Moreover, this remarkable technology is robust to differences in cement characteristics and can be used with various supplementary cementitious materials. It doesn't compromise early-age strength and, in some cases, even enhances it. The Kenhardt Solar Project is evidence of

32 22 nd Best Projects Awards 2023