Analisa Kekuatan Material Komposit Berpenguat Serabut Kelapa Dan Serbuk Gergaji Kayu Sebagai Alternatif Pengganti Kalsiboard. (Analysis of the Strength of Composite Material Reinforced with Coconut Fibers and Wood Sawdust as an Alternative to Calci Board).

Hartanto, Yusuf Bazla Aqila (2025) Analisa Kekuatan Material Komposit Berpenguat Serabut Kelapa Dan Serbuk Gergaji Kayu Sebagai Alternatif Pengganti Kalsiboard. (Analysis of the Strength of Composite Material Reinforced with Coconut Fibers and Wood Sawdust as an Alternative to Calci Board). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.

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Abstract

Dalam beberapa dekade terakhir, kebutuhan akan material konstruksi yang ringan, ramah lingkungan, dan ekonomis terus meningkat.Material yang termasuk dalam kriteria tersebut adalah material komposit berpenguat serat alam yakni serabut kelapa dan limbah serbuk gergaji. Alasan utama memilih dikarenakan bahan tersebut sangat mudah untuk ditemui dan kurangnya pemanfaatan pada bahan tersebut. Maka dari itu penelitian ini menganalisa nilai hasil pengujian kekuatan tarik, bending, dan SEM untuk dijadikan bahan alternatif pengganti kalsiboard. Dalam penelitian ini menggunakan campuran semen putih serta lem putih sebagai matriks dan serabut kelapa serta serbuk gergaji sebagai penguat. Variasi volume matriks dengan penguat 70%:30% dengan variasi penguat serabut kelapa dengan serbuk gergaji 10%;90%, 9%;91%, 8%;92%, 7%;93%, 6%;94%, 5%;95%. Penelitian ini juga memiliki variasi ukuran serbuk gergaji sebesar 18 mesh dan 100 mesh. Pada hasil analisa sifat mekanik pada pengujian tarik didapatkan nilai tertinggi pada tegangan yatitu 1,18 Mpa dengan variasi serbuk 18 mesh pada persentase serat 10%. Sedangkan hasil terendah pada tegangan di angka 0,49 Mpa dengan variasi serbuk 100 mesh pada persentase serat 10%. Pada pengujian bending didapatkan nilai tertinggi pada pada tegangan yaitu 18,11 Mpa dengan variasi serbuk 18 mesh pada persentase serat 5%. Sedangkan hasil terendah pada tegangan di angka 5,48 Mpa dengan variasi 100 mesh pada persentase serat 7%. Berdasarkan hasil pengujian, material yang di uji mendapatkan nilai tertinggi sebesar 18,11 Mpa berdasarkan pengujian bending. Sedangkan nilai kalsiboard yang beredar sebesar 10,5 Mpa.

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