Admixture for hydraulic cement mixes

Details Admixture for hydraulic cement mixes Admixture for hydraulic cement mixes

C - Chemistry, Metallurgy

04

B

261/50

C04B 24/16 (2006.01) C04B 28/02 (2006.01)

Patent

CA 1209596

ABSTRACT OF THE DISCLOSURE The present invention is a specific combination of components having unique properties both in composition and benefits. Such 2 combination has been found in alkali or alkaline earth metal nitrates, alkanolamines and alkali or alkaline earth metal thiocyanates. In such combinations it has also been found that alkaline and alkali earth thiosulfates and chlorides below the concentration level where corrosion is promoted may advantageously be substituted for all or part of the thiocyanates and that diethanolamine, N,N-di(hydroxyethyl)glycine (bicine) and N,N-di(hydroxyethyl)-.beta.-aminopropionic acid (DAPA) and certain alkanolamines and alkanolamino acids and derivatives may advantageously be substituted for all or part of the triethanolamine.

451203

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