ABSTRACT
This project entails a general study of the compressive strength of concrete mixes partially replaced. Cement is replaced with Palm oil Fuel Ash to aid decongestion of environment and also providing cheaper alternative for large cement requirement. Due to the numerous constituents occurring in varying amounts, the report shows that POFA possess considerable amount of chemical properties that fits the requirements for partial replacement of cement in concrete,
Agricultural waste materials, in this case, POFA, was properly collected from a local oil mill at Iyowa Community Along Benin Akure Road Ovia North East Local Government Area of Edo State. POFA was taken for test in a laboratory in Lagos state by a contracted individual. The tested fibers was used in replacement of cement in various percentages ranging from 5%, 10%, 15%, 20%, 25% of OPC with Palm Oil Fuel Ash (POFA), and their various strengths were compared to the strength of 0% replacement of cement with various mix ratios 1:1:2(C5) , 1:1.5:3(C10), 1:2:4(C15), 1:3:6(C20), 1:5:10(C25) including design mixes of target strength M25 and M30 so as to ascertain replacement behavior in various use cases this gave us a number of 504 cubes cured for 7, 14, 21 and 28days respectively. The mix proportions was done by weight. It was observed that the compressive strength of the concrete cubes decreased as a result of increase in cement replacement with POFA. Therefore POFA affects the workability of concrete this reduces bleeding and segregation of materials generally
