Semesta Teknika
Vol 25, No 2 (2022): NOVEMBER 2022

Utilization of Grits and Dreg Wastes for Ceramics Raw Material

Edwin Kristanto Sijabat (Department of Pulp and Paper Technology, Faculty of Vocational, Institut Teknologi Sains Bandung)
Andrie Harmaji (Department of Metallurgical Engineering, Faculty of Engineering and Design, Institut Teknologi Sains Bandung)
Rafida Khoirani (Department of Metallurgical Engineering, Faculty of Engineering and Design, Institut Teknologi Sains Bandung)



Article Info

Publish Date
26 Nov 2022

Abstract

This research utilizes dreg and grits wastes from pulp industry by addition of kaolin as raw material in producing ceramics that have good physical and mechanical properties. Dreg and grits were prepared by drying in an oven at 120°C for 5 hours, then crushed and sieved using a 200 mesh sieve, then characterized by means of Inductively Coupled Plasma (ICP). Ceramic samples were printed using Compressive Gauge Testing with a strength of 15 kN for 60 seconds. The kaolin percentage was varied between 20-80% followed by drying for 48 hours at room temperature. The ceramic samples were burned in a stepwise furnace temperature of up to 1000°C with a holding time of 30 minutes. Their physical properties, i.e. density, porosity, fuel loss, and water absorption, were characterized, and their compressive strength was investigated. The ICP test showed that the highest chemical content in the dreg and grit is CaO, at 36% and 50%. The optimum dose of ceramics produced in this study is the composition of 80% kaolin. The percentage of kaolin mixture is directly proportional to the compressive strength, density and fuel shrinkage, while the porosity and water absorption are inversely proportional. The ceramic characterization was obtained with compressive strength ranging from 4.48 MPa to 11.98 MPa.

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Journal Info

Abbrev

st

Publisher

Subject

Engineering

Description

SEMESTA TEKNIKA is a reputable refereed journal devoted to the publication and dissemination of basic and applied research in engineering. SEMESTA TEKNIKA is a forum for publishing high quality papers and references in engineering science and technology. The Journal is published by the Faculty of ...