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The test manufacturing of wood-based gypsum boards (5) - the effects of extractives from larch trees on the hardening of beta -hemihydrated gypsum

, : The test manufacturing of wood-based gypsum boards (5) - the effects of extractives from larch trees on the hardening of beta -hemihydrated gypsum. Journal of the Hokkaido Forest Products Research Institute (332): 10-14

Both cold-water and hot-water extractives of larch retarded the setting of gypsum, though hot-water extractives had a greater effect.


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