keywords: Municipal Solid Waste Incinerator Ash, Cement, Pozzolana, Workability, Compressive strength
Conventional materials for the production of concrete like cement and aggregates are becoming gradually becoming expensive due to high cost acquired in their processes- production and transportation. The exploitation of locally available materials such as wastes ash that can either reduce or replace the conventional materials should be considered. This research work is on the assessment of strength property of municipal solid waste incinerator ash-concrete. The investigation into the effect of partial replacement of municipal solid waste incinerator ash with ordinary Portland cement at 5, 10, 15, 20, 25 and 30% was carried out in accordance with the standard. The municipal solid waste incinerator ash was obtained from an incinerator in Bida and its environ. Total number of 84 cubes of size 150x150x150 mm specimen were casted from a mix ratio of 1:2:4 by weight and water cement ratio of 0.55 were used. The addition of Municipal solid waste incinerator ash (MSWIA) in concrete showed slight increase in compressive strength with increase in MSWIA additive up to 10% and decrease in compressive strength with further increase in MSWIA content, though the compressive strength of 15% replacement is almost the same as control. The 28 days compressive strength of concrete with 10% MSWIA content was 14.71 % more than normal, while that of concrete with 15% MSWIA content was 3.36% less than normal.