PEMBUATAN DAN KARAKTERISASI KERAMIK BERPORI DENGAN BAHAN BAKU KAOLIN, ALUMINA, DEBU VULKANIK GUNUNG
SINABUNG DAN KARBON AKTIF
ABSTRAK
Telah dilakukan penelitian tentang pembuatan keramik. Keramik dibuat dengan bahan dasar kaolin, alumina, debu vulkanik gunung Sinabung dan karbon aktif. Metode yang digunakan adalah dye pressing, perbandingan kaolin dan alumina (4:1) sebagai variabel tetap. Komposisi sebagai berikut (50:50:0), (50:45:5), (50:40:10), (50:35:15) dan (50:30:20). Karakterisasi keramik berpori yang telah diuji yaitu densitas 1,57-2,12gr/cm3; porositas 12,19-31,24%; susut massa 7,86-26,82%; susut bakar 14,75-20,21%; kuat tekan 8,63-38,40 MPa; kekerasan 39,32-87,14 MPa..
Kata Kunci : Keramik Berpori, Kaolin, Alumina, Debu Vulkanik Gunung Sinabung
MANUFACTURING AND CHARACTERISTIC POROUS CERAMIC WITH KAOLIN, ALUMINA, SINABUNG VOLCANIC ASH AND
ACTIVATED CARBON
ABSTRACT
It was done the research about manufacturing porous ceramics. The ceramics were manufactured with basic materials such as Kaolin, Alumina, Sinabung volcanic ash and activated carbon. The method that was used was dye pressing by the comparison of Kaolin and Alumina ratio (4:1) as control variable. The compositions as follows (50:50:0), (50:45:5), (50:40:10), (50:35:15), and (50:30:20).. The characterization of porous ceramics that had been examined as follows density 1,57-2,12 gr/cm3; porosity 12,19-31,24%; mass loss 7,86-26,82%; ignition loss 14,75-20,21%; compressive strength 8,63-38,40 MPa; hardness 39,32-87,14 MPa.
Keywords: Porous Ceramics,Kaolin, Alumina, Sinabung Volcanic ash.
