Pemanfaatan Limbah Tailing PT Indonesia Chemical Alumina Sebagai Bahan Campuran Batu Bata untuk Alternatif Pengurangan Limbah Industri Bauksit

Faizah Isyiqah (Universitas Nahdlatul Ulama Kalimantan Barat)
Wahyu Prayitno (Universitas Nahdlatul Ulama Kalimantan Barat)
Rizky Putranto (Universitas Nahdlatul Ulama Kalimantan Barat)

AKSIOMA : Jurnal Sains Ekonomi dan Edukasi
Vol. 3 No. 8 (2026): AKSIOMA : Jurnal Sains, Ekonomi dan Edukasi

This study evaluated the utilization of bauxite tailings from PT Indonesia Chemical Alumina as a mixture material for brick manufacturing to reduce industrial waste. A quantitative experimental method was applied using tailing compositions of 0%, 20%, 40%, and 80%. Bricks were produced through drying, sieving, mixing, molding, drying, and traditional firing according to SNI 15-2094-2000. The 20% tailing composition produced the highest compressive strength of 4.828 MPa, while the 80% composition showed the lowest value of 1.839 MPa. Water absorption increased with higher tailing content, ranging from 29.01% to 43.76%. The utilized tailing volume reached 0.003892 m³ at laboratory scale. The results indicate that bauxite tailings can be used as a brick mixture material and have potential for reducing industrial waste, although optimization is still needed to improve water absorption performance.