The utilization of five types of fine aggregate for concrete production were investigated. Normal concrete were made with different types of fine aggregate. The fine aggregate considered were sharp sand (control sample), saw-dust, crushed groundnut shell, crushed palm kernel shell and quarry dust. Preliminary laboratory investigation was carried out on the aggregate to ascertain its suitability for construction work. Tests conducted were sieve analysis, bulk density, workability and specific gravity tests respectively. Compressive strength which is the most effective property of concrete were investigated for various types of fine aggregates as listed. 1:2:4 mix ratio and absolute volume method were adopted for the mix composition calculations. A total of 12 cubes of 150mmx150mm size were cast for each type of fine aggregate. There compressive strength were monitored for 7, 14, 21 and 28 days. Test results showed that concrete made from quarry dust has the highest workability followed by concrete made from crushed palm kernel shell, crushed groundnut shell and saw-dust fine aggregate respectively. Concrete made from quarry dust showed highest strength for all ages followed by concrete made from crushed palm kernel shell, crushed groundnut shell and saw dust respectively. Compressive strength chart were made from the results of the research. This served as a guide to concrete users on the best alternative fine aggregate for concrete productions.
Key words: Aggregate, Workability, Compressive, Concrete and Strength.
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