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Recycled Aggregate Manufacturing Method and Recycled Aggregate Obtained From Said Method
[Problem] Provided is a method for manufacturing high quality recycled aggregate by using concrete debris as raw material. [Solution] A method for manufacturing recycled aggregate includes: a crush step for crushing a raw material including concrete debris; a first classification step for classifying the crushed raw material into small diameter components having a first standard particle diameter or smaller and large diameter components having the first standard particle diameter or greater; a milling step for supplying the large diameter components and the small diameter components to a mill with a volume ratio of the large diameter components relative to the small diameter components equal or greater and rubbing the large diameter components and the small diameter components with each other at the mill, the mill not including a milling medium; a second classification step for classifying the large diameter components and the small diameter components milled in the milling step into small diameter components having a second standard particle diameter or smaller and large diameter components having the second standard particle diameter or greater, the second standard particle diameter being smaller than the first standard particle diameter; and a reprocessing step for supplying the large diameter components and the small diameter components classified in the second classification step to the mill and performing the milling step and the second classification step, wherein after the reprocessing step is performed at least once or more, the large diameter components and the small diameter components classified in the second classification step in the last-performed reprocessing step are collected as recycled aggregate.
Recycled Aggregate Manufacturing Method and Recycled Aggregate Obtained From Said Method
[Problem] Provided is a method for manufacturing high quality recycled aggregate by using concrete debris as raw material. [Solution] A method for manufacturing recycled aggregate includes: a crush step for crushing a raw material including concrete debris; a first classification step for classifying the crushed raw material into small diameter components having a first standard particle diameter or smaller and large diameter components having the first standard particle diameter or greater; a milling step for supplying the large diameter components and the small diameter components to a mill with a volume ratio of the large diameter components relative to the small diameter components equal or greater and rubbing the large diameter components and the small diameter components with each other at the mill, the mill not including a milling medium; a second classification step for classifying the large diameter components and the small diameter components milled in the milling step into small diameter components having a second standard particle diameter or smaller and large diameter components having the second standard particle diameter or greater, the second standard particle diameter being smaller than the first standard particle diameter; and a reprocessing step for supplying the large diameter components and the small diameter components classified in the second classification step to the mill and performing the milling step and the second classification step, wherein after the reprocessing step is performed at least once or more, the large diameter components and the small diameter components classified in the second classification step in the last-performed reprocessing step are collected as recycled aggregate.
Recycled Aggregate Manufacturing Method and Recycled Aggregate Obtained From Said Method
YANASE SHIGEO (author)
2015-08-06
Patent
Electronic Resource
English
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