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Coal ash granule production method, concrete product production method using coal ash granulation product, high density / high strength concrete product produced by these production methods, high density / high strength concrete product Method for producing recycled aggregate, and recycled aggregate produced by this production method
Coal ash granule production method, concrete product production method using coal ash granulation product, high density / high strength concrete product produced by these production methods, high density / high strength concrete product Method for producing recycled aggregate, and recycled aggregate produced by this production method
PROBLEM TO BE SOLVED: To provide a novel recycling technique which enables efficient production of high density/high strength concrete products at low cost while using existent ash having a high water content as a principal raw material.SOLUTION: A method for manufacturing coal ash granulated substances is configured to use a granulation plant in which a material supply system to a mixer granulator 4 is divided and isolated into three supply channels as the total of a wet material supply channel 1, a dry material supply channel 2 and a water supply channel 3, more specifically, use a granulation plant in which the material supply system to the mixer granulator 4 is divided and isolated into four supply channels as the total of a water-containing existent ash supply channel 1, a dried dry ash supply channel 24, a dried cement supply channel 20 and a water supply channel 3, wherein existent ash EC, cement C, dry ash DC and mixing water W are supplied to the mixer granulator 4 through the wet material supply channel 1, the dry material supply channel 2, the dry material supply channel 2 and the water supply channel 3, respectively, they are stirred, ground and mixed to manufacture the coal ash granulated substances G.
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