Settable mineral clinker compositions

Details Settable mineral clinker compositions Settable mineral clinker compositions

1987-07-23

1989-01-17

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

106 89, 106109, 106120, 106315, C04B 732

Patent

active

047986280

ABSTRACT:
A settable cementitious composition is produced by mixing a ground mineral composition containing the phase 4CaO.3Al.sub.2 O.sub.3.SO.sub.3, in the presence of water, with a source of alkali metal or alkaline earth metal under alkaline conditions. In the pump packing method of stowing cavities in underground mines, an aqueous slurry of the mineral composition is mixed with a second slurry containing calcium sulfate, lime and, preferably, bentonite, an alkali metal sulfate and a setting and/or hardening accelerator. The components may be provided initially as a dry mixture. A preferred mineral composition comprises at least 15% by weight of 4CaO.3Al.sub.2 O.sub.3.SO.sub.3, less than 1% by weight of free lime, less than 25% by weight of CaO.2Al.sub.2 O.sub.3 and not more than 10% by weight of 12CaO.7Al.sub.2 O.sub.3.

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patent: 4352693 (1982-10-01), Langdon
patent: 4404031 (1983-09-01), Sadoh et al.
patent: 4409030 (1983-10-01), Minegishi et al.
patent: 4419136 (1983-12-01), Rice

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