PENAMBAHAN FLY ASH DAN SERAT SERABUT KELAPA SEBAGAI BAHAN PEMBUATAN BETON

Eko Siswanto(1*),

(1) Kadiri University
(*) Corresponding Author

Abstract


Abstrak

Along with the development of technology today many types of materials and mixtures are used. This study used concrete K-225 jobmix and carried out the addition of coconut fiber as an addition to coarse aggregate and Fly ash as cement enhancer.

Jobmix variations of concrete are 0%, 10%, 20%, 30%, and 40%. The number of test specimens from each variation was made 3 pieces of specimens in the form of cubes 15 x 15 x 15 cm, testing the specimens was carried out at the age of 28 days. By testing compressive strength and absorption.

                The results showed that the average compressive strength of concrete in each variation was 0% (2800 kg / cm2), 10% (2520 kg / cm2), 20% (2016 kg / cm2), 30% (1411 kg / cm2) and 40% (846 kg / cm2). From the average - compressive strength of concrete in each variation data obtained that the value of compressive strength of concrete with a variation of 10% is equal to the average value of compressive strength K-225. The optimum percentage of coconut fiber fibers in the compressive strength of concrete at a variation of 10% with the conversion results of 260 kg / cm3 reaching k-225 quality. Absorption test with addition of coconut fiber fibers and Fly ash in each variation with an average of ¼ hour (0.101 ml), 1 hour (0.046 ml), 4 hours (0.016 ml), and 24 hours (0.037 ml)

 

 

Keywords: Compressive Strength, Absorption, Coconut Fiber, Fly ash.


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References


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DOI: http://dx.doi.org/10.30737/ukarst.v3i1.352

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