If you have been to the Wits Club or Alumni Offices at the University of the Witwatersrand in the last couple of years, you may have seen this unusual structure. It is a recent interpretation of a structural type that is extremely ancient, with surviving evidence of examples from Ancient Egypt and the most ancient cultures of the Middle East. The curved roof forms are amazingly efficient, such that they can be built from materials that have very little structural strength, such as sundried earth and cement-stabilised earth, which is the material used for the roofs in the Wits building. The Wits masonry vaults http://www.claisse.info/2019%20papers/5021.pdf My interest in this material goes back to the mid-2000s, when I was exploring labour-intensive approaches as part of my PhD. I was already aware of stabilised earth, as several of my colleagues in the School of Civil and Environmental Engineering had been researching it, and we already had a diesel and a fully manual block press...
Reflections on architecture, design, interiors and inspiring creativity