Green Concrete Inovation With a Coconut Fiber and Glass Waste Combination As a Partial Subtitution For Fine agregate For Concrete Compressive Strength
Inovasi Beton Hijau dengan Kombinasi Serat Sabut Kelapa dan limbah Kaca Sebagai Subtitusi Parsial Agregat Halus terhadap Kuat Tekan Beton
DOI:
https://doi.org/10.21070/ups.12364Keywords:
Concrete, bill of materialsAbstract
. The increasing amount of glass waste and coconut fiber biomass has encouraged the use of these materials as alternatives in concrete mixtures. This study analyzed the effect of a combination of coconut fiber and glass waste as a partial substitution for fine aggregate with variations of LSK1 (20% glass waste + 0.125% coconut fiber) and LSK2 (40% glass waste + 0.50% coconut fiber), as well as compressive strength tests at the ages of 7, 14, and 28 days. The results showed that glass waste was fine-grained and met the gradation requirements of Zone II, while coconut fiber had a water content of 12.36%. The LSK1 mixture produced a compressive strength of 18.03 MPa at 28 days, only 3.27% lower than normal concrete, and met the minimum requirement for non-structural concrete. Meanwhile, LSK2 only reached 14.82 MPa and did not meet the K-225 quality target.
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