Characterizations of temperature effects on sintered ceramics manufactured with waste foundry sand and clay
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The objects of this study were to use waste foundry sand (WFS) to manufacture reclaimed resource tiles and to determine the effects of different kiln temperatures on the properties of the reclaimed WFS tiles. In this study, clay was replaced with 0 or 15 % WFS to manufacture tile specimens. Four different kiln temperatures (1000, 1050, 1100, and 1150 °C) were used in this study for the manufacture of tile specimens. The test results showed that using 15 % WFS in the tile specimens allowed the kiln temperature to be lowered by 50 °C. This temperature reduction is helpful for reducing costs and energy consumption and carbon reduction. Moreover, when the kiln temperature increased from 1000 to 1100 °C and the specimens were placed in acidic and alkaline solutions, the weight loss of the tile specimens containing 15 % WFS was half that of the specimens containing 0 % WFS. The acid-alkali resistance of the tile specimens containing 15 % WFS was also improved. This result suggested that the WFS replacement and kiln temperature affected the properties of the tile specimens.
KeywordsClay Tile Waste foundry sand
This study was partly supported by the National Science Council of Republic of China (Grant No. NSC 101-2221-E-214 -063 -MY3-1).
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