Settable mineral clinker compositions
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 17, 1989
Issued Date -
N/A
app pub date -
Jul 23, 1987
filing date -
Oct 30, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully