KAJIAN KORELASI NILAI BERAT JENIS TERHADAP KUAT TEKAN BATU BATA KONVENSIONAL, BATU BATA DENGAN CAMPURAN ABU AKASIA DAN BATU BATA ABU LAS KARBIT

Marlia Adriana; Norminawati Dewi; Budi Kurniawan; Intan Safitri; Tekad Budiantoro

doi:10.21009/jpensil.v15i1.61099

Penulis

Marlia Adriana Road and Bridge Engineering Technology Study Program, Department of Industrial Engineering, Tanah Laut State Polytechnic
Norminawati Dewi Road and Bridge Engineering Technology Study Program, Department of Industrial Engineering, Tanah Laut State Polytechnic
Budi Kurniawan Road and Bridge Engineering Technology Study Program, Department of Industrial Engineering, Tanah Laut State Polytechnic
Intan Safitri Road and Bridge Engineering Technology Study Program, Department of Industrial Engineering, Tanah Laut State Polytechnic
Tekad Budiantoro Road and Bridge Engineering Technology Study Program, Department of Industrial Engineering, Tanah Laut State Polytechnic

DOI:

https://doi.org/10.21009/jpensil.v15i1.61099

Kata Kunci:

Batu Bata, Berat Jenis, Kuat Tekan, Abu Akasia, Abu Las Karbit

Abstrak

Penelitian ini bertujuan untuk menganalisis korelasi antara nilai berat jenis dan kuat tekan pada batu bata konvensional serta batu bata dengan campuran abu kayu akasia dan abu las karbit sebagai bahan aditif ramah lingkungan. Metode penelitian dilakukan melalui tahapan persiapan bahan tanah liat, pencampuran dengan komposisi 85% tanah dan 15% bahan aditif pada variasi kadar air 20 ml, 25 ml, dan 35 ml, kemudian dilakukan pencetakan, pengeringan selama 7 dan 14 hari, serta pengujian berat jenis dan kuat tekan. Hasil penelitian menunjukkan bahwa penambahan abu akasia memberikan pengaruh paling signifikan terhadap peningkatan berat jenis dan kuat tekan batu bata dibandingkan dengan abu las karbit maupun batu bata konvensional. Nilai berat jenis tertinggi sebesar 5,967 g/cm³ dan kuat tekan maksimum sebesar 12,603 MPa diperoleh pada sampel batu bata dengan campuran abu akasia pada umur 14 hari. Korelasi positif antara berat jenis dan kuat tekan menunjukkan bahwa peningkatan densitas berkontribusi terhadap peningkatan kekuatan mekanik batu bata. Penelitian ini membuktikan potensi pemanfaatan limbah abu akasia sebagai bahan pengisi yang dapat memperkuat struktur batu bata tanpa proses pembakaran.

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