RECLAIMED MATERIAL AND ITS PRODUCTION METHOD, AND INORGANIC BOARD PREPARED BY USING THE RECLAIMED MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a reclaimed material which can be compounded in an increased amount into an inorganic board and can keep the material balance and its production method; and an inorganic board prepared by using the reclaimed material.

SOLUTION: This reclaimed material is prepared by grinding a waste material of an inorganic board. The freeness of fibers contained in the reclaimed material is 50% or higher of the freeness of new reinforcing fibers contained in the inorganic board. The solid component contained in the reclaimed material has a particle size of 100μm or less.

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