Abstract

The objective of this research was to obtain the physical and chemical characteristics of the recycled waste material such as bricks, roof tiles, and ceramics waste. Chemical composition checked with XRF method. The physical characteristics were obtained by burning the recycled materials at 1000°C with ladle burner machine. SNI 03-2834-2000 was used as guideline in concrete making process. It could be seen that on the recycled materials had silica as their highest chemical composition. The specific gravity of recycled materials increased after the burning process while water absorption decreased after the burning process. Thermal treatment improved the quality of recycled alternative aggregates. Crystallization process started at 1000°C, resulted the decreasing value of material porosity and hardness. The decreasing value of concrete compressive strength was less than 8 % at the 25 % substitution of both ceramics and roof tiles. It showed that the recycled materials could be used as structural concrete based on SNI (Indonesian National Standard)

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