Nthabiseng Portia Mahumapelo and Andre van Niekerk and Ndabenhle Sosibo and Nirdesh Singh, Assessing the Suitability of South African Waste Foundry Sand as an Additive in Clay Masonry Products. journal = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology. July 2020, vol. 164(8). 186 - 190 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/10011351.