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Analysis of Construction Material Using SEM (Scanning Electron Microscope)
Abstract:
This study analyzed change of microstructure of air pollution control (APC) ash after being sintered at 700°C, 900°C and 1100°C using SEM (scanning electronic microscope). It was found that fly ash has a loose structure and lots of pores among the particulates, making it easy for heavy metals to be extracted into the environment. Lots of glass phases exist in it, which improves activity of the ash using as a construction material. Structure of fly ash is strengthened with increase of temperature, which is conducive to stabilization of heavy metals. Crystal content increases from room temperature to 900°C and then decreases in the heating process, while content of glass phases has a reverse trend.
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145-148
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March 2013
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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