SUBSTITUSI SEMEN DENGAN PALM OIL FUEL ASH (POFA) TERHADAP KUAT TEKAN BETON

Akmar Reizu Yulio, - and Ben Novarro Batubara, - and Istiqomah, - (2025) SUBSTITUSI SEMEN DENGAN PALM OIL FUEL ASH (POFA) TERHADAP KUAT TEKAN BETON. S1 thesis, Universitas Pendidikan Indonesia.

Abstract

Beton menggunakan semen sebagai komponen utama, namun produksi semen menghasilkan emisi CO₂ tinggi dan mengurangi cadangan batu kapur. Palm Oil Fuel Ash (POFA), limbah kelapa sawit kaya silika, dapat menjadi alternatif pengganti sebagian semen. Palm Oil Fuel Ash (POFA) memiliki kandungan utama silika dioksida (SiO2) yaitu sebesar 89,91%. Abu cangkang kelapa sawit merupakan biomas dengan kandungan Silika (SiO2) yang potensial dimanfaatkan. Penelitian ini bertujuan untuk mengetahui hasil substitusi semen dengan palm oil fuel ash terhadap kuat tekan beton. Penelitian ini menggunakan metode eksperimen. Benda uji berupa silinder 10 x 20 cm, mutu rencana fc’ 30 MPa. Variasi palm oil fuel ash yang ditambahkan sebesar 5%, 10%, 15%, 20%, dan 25% terhadap berat semen. Hasil pengujian kuat tekan beton meningkat sampai variasi 10%, dengan nilai 31,916 MPa pada umur 28 hari. Pada variasi 15%, 20%, dan 25% kuat tekan beton kembali menurun dengan nilai 30,647 MPa, 29,459 MPa, dan 28,975 MPa. Kuat tekan maksimum didapatkan pada variasi BSPOFA 10% dengan kenaikan kuat tekan sebesar 5,81%. Diperlukan penelitian variasi POFA dengan selisih variasi yang lebih kecil diatas 10% pada beton dengan subtitusi POFA. Concrete uses cement as its main component; however, cement production generates high CO₂ emissions and depletes limestone reserves. Palm Oil Fuel Ash (POFA), a palm oil waste rich in silica, can serve as a partial alternative to cement. POFA primarily contains silicon dioxide (SiO₂) at 89.91%. Palm shell ash is a biomass material with significant silica (SiO₂) content that has potential for utilization. This study aims to investigate the effect of palm oil fuel ash substitution on the compressive strength of concrete. An experimental method was used in this research. The test specimens were cylindrical in shape (10 x 20 cm), with a target strength of fc’ 30 MPa. The variations of palm oil fuel ash added were 5%, 10%, 15%, 20%, and 25% by weight of cement. The test results showed that the compressive strength increased up to the 10% variation, reaching 31.916 MPa at 28 days of age. At 15%, 20%, and 25% variations, the compressive strength decreased to 30.647 MPa, 29.459 MPa, and 28.975 MPa, respectively. The highest compressive strength was obtained at 10% POFA substitution, with an increase of 5.81%. Further research is needed with smaller increment variations above 10% POFA substitution in concrete.

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Item Type:	Thesis (S1)
Additional Information:	https://scholar.google.com/citations?hl=en&view_op=list_works&gmla=AH8HC4wyvlAbvuBFUzipgE3_-XAobA8EeY69oj6g3Eo90Q4R27dG240nDprynSQoUCQ9uHU3-qPFGWQey69Ugg&user=Er7hcaEAAAAJ ID SINTA Dosen Pembimbing: Ben Novarro Batubara: 6710018 Istiqomah: 6000414
Uncontrolled Keywords:	Substitusi, palm oil fuel ash, semen, kuat tekan beton. Substitution, palm oil fuel ash, cement, concrete compressive strength.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Fakultas Pendidikan Teknik dan Industri > Jurusan Pendidikan Teknik Sipil > Program Studi Teknik Sipil
Depositing User:	Akmar Reizu Yulio
Date Deposited:	08 Oct 2025 03:14
Last Modified:	08 Oct 2025 03:14
URI:	http://repository.upi.edu/id/eprint/142439

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