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Process Of Hemihydrate Gypsum In Mali

The invention relates to a process for reducing the sagging of a gypsum-based element such as a gypsum board this process comprises the introduction into the gypsum-based composition before the setting and hardening of the latter of tartaric acid or tartaric acid salts in a quantity greater than 0001 by weight with respect to the weight of the calcium sulphate semihydrate contained in.

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