The Compressive Strength of Fly Ash and Stone Dush in Concrete
Keywords:
Fly Ash, Stone Dust, Compressive StrengthAbstract
Concrete is one of the most used in construction materials because it is easy to shape. In other
condition, the material that form the concrete is decreasing, so innovation of concrete materials is needed.
One of them uses fly ash and stone dust as a cement substitution. Fly ash is a by product from burning
pulverized coal in electric power generating plants, than stone dust is waste material obtained from crusher
plants. Both of these materials are widely produced but have not been optimally utilized in concrete
materials.In the present investigation, an experimental program was carried out to study the workability
and compressive strength of concrete made using fly ash type C and stone dust as partial replacement of
cement in the variation of fly ash is 0%, 5%, 10%, 20% and 30%, than the variation of stone dust is 0%
and 10 %. The compressive strength planned is 25 MPa in 28 days curing. The research uses 15 specimen
cylindrical test. The result of the slump test BN, BFA-5, BFA-10, BFA-20, BFA-30 are 10 mm, 10
mm, 9 mm, 8.8 mm, and 8.2 mm. Result of compressive test BN, BFA-5, BFA-10, BFA-20, BFA
– 30 are 27.46 MPa. Result showed that by replacing of cement with 10% fly ash and 10% stone
dust (BFA-10) of optimum compressive strength.
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V. C. A. Amit K S, Vikas S., “Stone Dust in Concrete : Effect on Compressive Strength,” Int. J. Eng. Tech. Res., vol. 3, 2015.
