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US 4,642,137 AGranted
Mineral binder and compositions employing the same
AssigneeLone Star Industries, Inc.
InventorsRichard F. Heitzmann, Mark Fitzgerald, James L. Sawyer
Life of this patent
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AssigneeLone Star Industries, Inc.
InventorsRichard F. Heitzmann, Mark Fitzgerald, James L. Sawyer
Estimating the term…
A binder composition for Portland cement is disclosed, said composition including 100 parts by weight metakaolin and, based upon said metakaolin, from 20 to 70 parts by weight slag; from 85 to 130 parts by weight of at least 1 material selected from the class consisting of fly ash, calcined shale, and calcined clay; from 70 to 215 parts by weight finely divided silica, preferably amorphous silica; and from 55 to 145 parts by weight of a mixture of potassium silicate and potassium hydroxide, wherein at least 55 parts by weight is potassium silicate. The binder composition can be mixed with Portland cement or with a combination of Portland cement and fly ash to provide a composition curable to a material having a high early strength and a high ultimate strength.
A binder composition for Portland cement comprising 100 parts, by weight, metakaolin and, based upon said metakaolin:
A binder composition for Portland cement comprising 100 parts, by weight, metakaolin and, based upon said metakaolin:
A binder composition for Portland cement comprising 100 parts, by weight, metakaolin and, based upon said metakaolin:
Dependencies are inferred from the claim text.