Title:
MAGNESIUM PHOSPHATE CONCRETE COMPOSITION FOR PERMAFROST APPLICATION
Document Type and Number:
WIPO Patent Application WO2005073145
Kind Code:
A3
Abstract:
A dry mix of a calcined oxide of Ca and/or Mg and an acid phosphate and fly ash with or without insulating extenders useful in permafrost conditions. Calcined oxide is present at about 12% to about 40% by weight and the acid phosphate is present at about 35% to about 45% by weight. The fly ash is present at about 10% to about 50% by weight with the fly ash being between about 50% to about 100% class F with the remainder class C. Insulating extenders are present in the range from 0% to about 15% by weight of the combined calcined oxide and acid phosphate and fly ash. 0.1% to about 0.5% boric acid and/or borate by weight of the dry mix is present.
Inventors:
WAGH ARUN S (US)
NATARAJAN RAMKUMAR (US)
FISHER BRANDON (US)
NATARAJAN RAMKUMAR (US)
FISHER BRANDON (US)
Application Number:
PCT/US2005/000485
Publication Date:
December 22, 2005
Filing Date:
January 07, 2005
Export Citation:
Assignee:
UNIV CHICAGO (US)
WAGH ARUN S (US)
NATARAJAN RAMKUMAR (US)
FISHER BRANDON (US)
WAGH ARUN S (US)
NATARAJAN RAMKUMAR (US)
FISHER BRANDON (US)
International Classes:
C04B28/34; C09K8/46; (IPC1-7): C04B28/34
Domestic Patent References:
| WO2000066878A1 | 2000-11-09 | |||
| WO2000006519A1 | 2000-02-10 |
Foreign References:
| US6136088A | 2000-10-24 | |||
| US20030131759A1 | 2003-07-17 | |||
| EP0203658A1 | 1986-12-03 | |||
| US5002610A | 1991-03-26 | |||
| US3960580A | 1976-06-01 |
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