THE USE OF MUNICIPAL SOLID WASTE ASH AS PARTIAL REPLACEMENT OF QUARRY DUST IN CONCRETE PRODUCTION
Keywords:
Concrete, Compressive strength, Quarry dust, Municipal solid waste ashAbstract
The increasing cost of concrete production calls for cheap and alternate ways of reducing its cost. This
includes identifying cheap materials that can substitute fine aggregate, cement or coarse aggregate. This is an
experimental research that utilizes an environmental waste, municipal solid waste ash to partially replace quarry dust in
concrete production. Quarry dust which is a known material used as fine aggregate in concrete works was replaced with
municipal solid waste ash at 5 %, 10 %, 15 %, 20 % , 25%, 30%, 35% and 40 % by weight for concrete grade C-25 mix.
The concrete specimens were tested for workability, compressive strength, and water absorption at 7 days, 14 days and
28 days. The results shows that partially replacing quarry dust with MSWA does not improve the strength and
workability of concrete but a comparative strength to the control strength can be obtained at 28 days age with 5 % to 15
% replacement which can be used for light concrete works.
