Process for producing a binder for slurry, mortar, and concrete

Compositions: coating or plastic – Coating or plastic compositions – Proteinaceous material containing

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106118, 106315, C04B 714, C04B 712

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043069126

ABSTRACT:
A process for producing a binder (cement) to be used in slurry, mortar, or concrete having a low water-to-cement ratio. As raw-material for the binder is used at least 50% by weight of a hydraulic material, such as slag, technical pozzolanas and/or natural pozzolanas. The hydraulic material is ground to a specific surface of at least 400 m.sup.2 /kg. To the raw-material is added 0.1 to 5% by weight of a plasticizing material, such as a sulphonated polyelectrolyte. To the raw-material are also added in total 0.5 to 8% by weight of sodium carbonate and/or sodium hydroxide. Added in small amounts, the sodium carbonate and the sodium hydroxide, separately or in combination, considerably shorten the hardening time of the concrete, yield excellent strengths, and make it possible to use cheap raw-materials.

REFERENCES:
patent: 2646360 (1953-07-01), Lea
patent: 3689294 (1972-09-01), Braunauer
patent: 3959004 (1976-05-01), Stryker
patent: 3960582 (1976-06-01), Ball et al.
patent: 4019918 (1977-04-01), Wills, Jr.
patent: 4032353 (1977-06-01), Ball et al.
patent: 4168985 (1979-09-01), Kolar et al.
patent: 4169747 (1979-10-01), De Rooy et al.

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