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Title: Phosphate-bonded calcium aluminate cements

Abstract

A method is described for making a rapid-setting phosphate-bonded cementitious material. A powdered aluminous cement is mixed with an aqueous solution of ammonium phosphate. The mixture is allowed to set to form an amorphous cementitious material which also may be hydrothermally treated at a temperature of from about 120 C to about 300 C to form a crystal-containing phosphate-bonded material. Also described are the cementitious products of this method and the cement composition which includes aluminous cement and ammonium polyphosphate. 10 figures.

Inventors:
Publication Date:
OSTI Identifier:
5357938
Patent Number(s):
US 5246496; A
Application Number:
PPN: US 7-970161
Assignee:
Associated Universities, Inc., Washington, DC (United States) PTO; EDB-94-046231
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Resource Relation:
Patent File Date: 2 Nov 1992
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CEMENTS; SYNTHESIS; ALUMINIUM COMPOUNDS; AMMONIUM PHOSPHATES; CHEMICAL COMPOSITION; MIXING; AMMONIUM COMPOUNDS; BUILDING MATERIALS; MATERIALS; OXYGEN COMPOUNDS; PHOSPHATES; PHOSPHORUS COMPOUNDS; 360601* - Other Materials- Preparation & Manufacture

Citation Formats

Sugama, T. Phosphate-bonded calcium aluminate cements. United States: N. p., 1993. Web.
Sugama, T. Phosphate-bonded calcium aluminate cements. United States.
Sugama, T. Tue . "Phosphate-bonded calcium aluminate cements". United States.
@article{osti_5357938,
title = {Phosphate-bonded calcium aluminate cements},
author = {Sugama, T.},
abstractNote = {A method is described for making a rapid-setting phosphate-bonded cementitious material. A powdered aluminous cement is mixed with an aqueous solution of ammonium phosphate. The mixture is allowed to set to form an amorphous cementitious material which also may be hydrothermally treated at a temperature of from about 120 C to about 300 C to form a crystal-containing phosphate-bonded material. Also described are the cementitious products of this method and the cement composition which includes aluminous cement and ammonium polyphosphate. 10 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 21 00:00:00 EDT 1993},
month = {Tue Sep 21 00:00:00 EDT 1993}
}