Compositions: coating or plastic – Coating or plastic compositions – Inorganic settable ingredient containing
Patent
1996-03-13
1997-06-03
Marcantoni, Paul
Compositions: coating or plastic
Coating or plastic compositions
Inorganic settable ingredient containing
106724, 106728, 106819, 106823, 427427, C04B 2404, C04B 2406
Patent
active
056349726
ABSTRACT:
A method of controlling the hydration of a cementitious composition comprising the steps of:
i) providing a cementitious composition containing an amount of a neutralized salt of an alpha-monohydroxy carboxylic acid effective to retard the cementitious composition, said carboxylic acid containing two or more carboxylic acid groups, and subsequently,
ii) adding an additional amount of said neutralized salt of an alpha monohydroxy carboxylic acid or a second neutralized salt of an alpha monohydroxy carboxylic acid in an amount sufficient to activate hydration of the retarded cementitious composition, said cementitious composition comprising hydraulic binder and water.
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Chemical Abstract 112:239697, Tsuchida, (Mikio, Storable, High Concentration Aqueous Calcium Nitrite Solutions), JP 01257112 (Oct. 1989).
Gay Frank T.
Huang Lan
Pacanovsky John T.
Shendy Samy M.
Battle Carl W.
Honor Robert S.
Loeschorn Carol A.
Marcantoni Paul
Sandoz Ltd.
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