| 摘要 |
PROBLEM TO BE SOLVED: To provide a rock wool board having excellent dimensional stability against the change of moisture in an environment. SOLUTION: The rock wool board is obtained by adding at least beaten pulp, an organic bonding agent and an inorganic filler to rock wool. The content of all organic materials is in the range of 7.5-12 wt.% based on 100 wt.% of the whole composition components of the rock wool board, and the content of the beaten pulp is in the range of 1-4 wt.% based on 100 wt.% of the whole composition components of the rock wool board.
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