AN ASSESSMENT OF JOS PLATEAU VOLCANIC DEPOSITS AS POZZOLANS AND ITS EFFECT ON BLENDED ORDINARY PORTLAND CEMENT CONCRETE

📄 Project Abstract

An enormous gap exists between the production capacities of the Cement Manufacturing Plants and the demand for cement in Nigeria. Prior to 2010, Nigeria could only produce between 4 and 6.5 million tons annually as against the domestic demand of about 18 million tons. There is the need therefore to augment the local cement production by the introduction of Natural Pozzolans of volcanogenic origins as partial replacements of the Ordinary Portland Cement (OPC) in concrete mixtures. The study thus focused on experimental works on the pozzolanic characteristics of Jos Plateau volcanic deposits as potential pozzolans for partial replacements of the OPC in concrete mixtures. The laboratory experimental studies evaluated the chemical characteristics of the volcanic materials and the pozzolanic characteristics of concrete made with the volcanic materials in partial replacement of the Portland cement in the concrete mixtures. The results of the chemical analysis indicated that the oxides of SiO...