The morning visit on 29th August 2023 was marked by the presence of distinguished individuals from both Aleco and Prokon, alongside key figures from the department. The Chairman of the department, Dr. Osano, and Prof. Mumenya, along with Eng. Muthomi and Mr. Ochieng from the University of Nairobi, welcomed the representatives, setting the stage for productive discussions.
Growth in global population leads to increased need for new buildings and infrastructure. This
population growth has in turn causes increased production and consumption rate of cement due to
the need of building durable structures whereby the majority use reinforced concrete. However,
the production of cement results in increase of carbon dioxide emissions, depletion of natural
resources and high energy consumption which has encouraged the search for more environmental
This study seeks to determine the suitability and potential use of quarry dust in concrete as a partial replacement of river sand and come up with an optimum mix. Concrete mixes bearing varying proportions of quarry dust and river sand will be cast and tested, and that which bears the proportion yielding the maximum compressive and tensile strength shall be selected as the ratio for the optimum mix.
