Early high-strength mineral polymer
AssigneePyrament Inc.
InventorsJoseph Davidovits, James L. Sawyer
Life of this patent
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Abstract
An early high-strength mineral polymer composition is formed of a polysialatesiloxo material obtained by adding a reactant mixture consisting of alumino-silicate oxide (Si.sub.2 O.sub.5,Al.sub.2 O.sub.2) with the aluminum cation in a four-fold coordination, strong alkalis such as sodium hydroxide and/or potassium hydroxide, water, and a sodium/potassium polysilicate solution; and from 15 to 26 parts, by weight, based upon the reactive mixture of the polysialatesiloxo polymer of ground blast furnace slag. Sufficient hardening for demolding is obtained in about 1 hour with this composition.
Claims6
An early high strength concrete composition obtained by adding ground blast furnace slag to a reactant mixture consisting of alumino-silicate oxide (Si.sub.2 O.sub.5,Al.sub.2 O.sub.2).sub.n with the aluminum cation in four-fold coordination, strong alkalis selected from the group consisting of sodium hydroxide and potassium hydroxide, water and a member selected from the class consisting of sodium and potassium polisilicate solutions, said reactant mixture having the following oxide mole ratio:
- M.sub.2 O/SiO.sub.2 :
- 0.20 to 0.36
- SiO.sub.2 /Al.sub.2 O.sub.3 :
- 3.0 to 4.12
- H.sub.2 O/M.sub.2 O:
- 12 to 20
- M.sub.2 O/Al.sub.2 O.sub.3 :
- 0.6 to 1.36
- where M.sub.2 O represents a member selected from the class consisting of Na.sub.2 O, K.sub.2 O, and the mixture (Na.sub.2 O,K.sub.2 O).
Dependencies are inferred from the claim text.