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Hydraulic cement set-accelerating admixtures incorporating amino acid derivatives
A set-accelerating compound for hydraulc cements based on methylol derivatives of amino acids. Especially effective at low temperatures.
Publisher: Arfaei et al, W.R. Grace & Co.-Conn. (New York, NY), 1993, US5211751
Cat: Patents: Cement Set Accelerators

Retarder-Accelerator Combination
Described is a method of controlling the hydration behaviour of gypsum in the manufacture of composite materials, in particular board. The retarder-accelerator combination comprises a calcium salt of an N-polyoxymethylene amino acid and potassium sulfate.
Publisher: Sattler et al (Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V., Munich, DE), 1998, US5846317
Cat: Patents: Gypsum Set Accelerators


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