Pengaruh Suhu Pembakaran Dan Konsentrasi Grafena Terhadap Karakteristik Batu Bata

Suci Afrianti, Amun Amri, Rozanna Sri Irianty

Abstract


This research aims to produce bricks by adding few layer graphene (FLG) and studies the effects of firing temperature and graphene concentration on the characteristics of the produced bricks. The produced bricks were tested their compressive strength, porosity, morphology using the scannning Electron Microscope (SEM), X-ray diffraction (XRD) analysis and fourier transform infrared (FTIR). The brick was made by adding the few layer graphene to the clay, then mixed them and casted in size (5x5x5) cm3. The samples then dried at room temperature for a week, and fired in furnace for 1 hour at the temperature variation of 600 °C, 800 ºC, and 1000 °C with graphene concentration variations of 10 mg/ml, 20 mg/ml and 30 mg/ml. The results showed that the highest compressive strength (9 MPa) and lowest porosity (6.1%) was exhibited by brick synthesized using graphene concentration of 30 mg/ml and the firing temperature of 1000°C. The Scannning Electron Microscope (SEM) analysis results showed that the addition of graphene reduced the porosity of the brick. The X-ray diffraction (XRD) analysis results showed that a diffraction peak of few layer graphene at 25.41º and the graphene did not influenced the crystal structure of the brick. This research showed that the increase in firing temperature and concentration of graphene made the structure of the brick increasingly dense. The few layer graphene could improve mechanical strength of the brick by reduce the stress concentration and prevent the development of the cracks.
Keywords : bricks, concentration, compressive strength, few layer graphene, firing, graphene, porosity

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