Phosphate-bonded calcium aluminate cements

Title: Phosphate-bonded calcium aluminate cements

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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:

Sugama, Toshifumi ^[1]

Mastic Beach, NY

Issue Date:: 1993-01-01

Research Org.:: Associated Universities, Inc., Upton, NY (United States)

OSTI Identifier:: 868928

Patent Number(s):: 5246496

Assignee:: Associated Universities, Inc. (Washington, DC)

Patent Classifications (CPCs):: C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

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C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B28/34 - containing cold phosphate binders
C04B7/32 - Aluminous cements
C04B40/065 - {Two or more component mortars}
C04B12/04 - Alkali metal or ammonium silicate cements {Alkyl silicate cements
C04B2103/22 - Set retarders
C04B22/062 - {of the alkali or alkaline-earth metals}
C04B40/024 - {Steam hardening, e.g. in an autoclave}

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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.

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                    Sugama, Toshifumi. Phosphate-bonded calcium aluminate cements.  United States.

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                    Sugama, Toshifumi. Fri .  
        "Phosphate-bonded calcium aluminate cements".  United States.  https://www.osti.gov/servlets/purl/868928.

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@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}

}

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