The Mechanical & Durability Performance Of Concrete Containing Waste Concrete Ash As Cement Replacement Materials
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Date
2015-09
Authors
HUSAIN, AHMAD HADRI
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Abstract
The use of concrete is important in the construction industry and it became
the most important and major construction materials use all over the world. This
research presents an experimental study of the influences of different percentage
waste concrete ash used as cement replacement materials to form a new concrete.
The results of the experiment were evaluated based on mechanical and durability
performance of concrete. To improve the quality of cement replacement concrete,
concrete admixture was added to work with waste concrete ash. The mix
proportioning of waste concrete ash uses were between 5% to 40% and Silica Fume
was used as an admixture. All specimens were cured by water curing process and it
was tested at the age of 7, 14, 28, 90 and 180 days. Based on this study, it revealed
that increasing a percentage of waste concrete ash reduces the quality of concrete. It
was found that, the optimum percentage of waste concrete ash used in cement
replacement is 10%. However, the compressive strength will be reduced when more
percentage of WCA were added. The presence of concrete admixture helps to restore
the strength and durability of concrete
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Keywords
The Mechanical & Durability Performance Of Concrete Containing , Waste Concrete Ash As Cement Replacement Materials