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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.degree. C. to about 300.degree. 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.

Inventors:
 [1]
  1. (Mastic Beach, NY)
Issue Date:
Research Org.:
ASSOC UNIVERSITIES INC
OSTI Identifier:
868928
Patent Number(s):
5246496
Assignee:
Associated Universities, Inc. (Washington, DC) BNL
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
phosphate-bonded; calcium; aluminate; cements; method; described; rapid-setting; cementitious; material; powdered; aluminous; cement; mixed; aqueous; solution; ammonium; phosphate; mixture; allowed; set; form; amorphous; hydrothermally; treated; temperature; 120; degree; 300; crystal-containing; products; composition; polyphosphate; cementitious material; cement composition; aqueous solution; ammonium phosphate; hydrothermally treated; thermally treated; calcium aluminate; /106/

Citation Formats

Sugama, Toshifumi. Phosphate-bonded calcium aluminate cements. United States: N. p., 1993. Web.
Sugama, Toshifumi. Phosphate-bonded calcium aluminate cements. United States.
Sugama, Toshifumi. Fri . "Phosphate-bonded calcium aluminate cements". United States. https://www.osti.gov/servlets/purl/868928.
@article{osti_868928,
title = {Phosphate-bonded calcium aluminate cements},
author = {Sugama, Toshifumi},
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.degree. C. to about 300.degree. 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

Patent:

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