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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10308552 B1

PDFFull Text
Date of Patent:
Jun. 04, 2019

Filed:

Feb. 17, 2017

Freeze-thaw durable geopolymer compositions and methods for making same

Applicant:

United States Gypsum Company, Chicago, IL (US);

Inventors:

Ashish Dubey, Grayslake, IL (US);

Sundararaman Chithiraputhiran, Chicago, IL (US);

Assignee:

UNITED STATES GYPSUM COMPANY, Chicago, IL (US);

Attorneys:

Vorys, Sater Seymour and Pease LLP

Pradip Sahu

Philip T. Petti

Primary Examiner:

Anthony J Green

Int. Cl.
CPC ...
C04B 7/32 (2006.01); E01C 7/14 (2006.01); C04B 12/00 (2006.01); C04B 28/00 (2006.01); C04B 24/26 (2006.01); C04B 28/14 (2006.01); C04B 28/06 (2006.01); C04B 18/08 (2006.01); C04B 24/04 (2006.01); C04B 24/34 (2006.01); E01C 23/10 (2006.01); E01C 7/36 (2006.01); E01C 7/35 (2006.01); C04B 103/00 (2006.01); C04B 111/00 (2006.01); C04B 111/20 (2006.01); C04B 111/60 (2006.01); C04B 111/72 (2006.01); C04B 103/30 (2006.01); C04B 103/32 (2006.01); C04B 103/40 (2006.01); C04B 103/50 (2006.01);
U.S. Cl.
CPC ...
C04B 28/006 (2013.01); C04B 7/32 (2013.01); C04B 12/005 (2013.01); C04B 18/08 (2013.01); C04B 24/045 (2013.01); C04B 24/2676 (2013.01); C04B 24/34 (2013.01); C04B 28/06 (2013.01); C04B 28/065 (2013.01); C04B 28/14 (2013.01); E01C 7/147 (2013.01); E01C 7/351 (2013.01); E01C 7/356 (2013.01); E01C 7/358 (2013.01); E01C 7/36 (2013.01); E01C 23/10 (2013.01); C04B 2103/0066 (2013.01); C04B 2103/304 (2013.01); C04B 2103/32 (2013.01); C04B 2103/40 (2013.01); C04B 2103/50 (2013.01); C04B 2111/0075 (2013.01); C04B 2111/29 (2013.01); C04B 2111/60 (2013.01); C04B 2111/72 (2013.01); E01C 7/142 (2013.01); Y02P 40/165 (2015.11); Y02W 30/92 (2015.05);
Abstract

A freeze-thaw durable, dimensionally stable, geopolymer composition including: cementitious reactive powder including thermally activated aluminosilicate mineral, aluminate cement preferably selected from at least one of calcium sulfoaluminate cement and calcium aluminate cement, and calcium sulfate selected from at least one of calcium sulfate dihydrate, calcium sulfate hemihydrate, and anhydrous calcium sulfate; alkali metal chemical activator; and a freeze-thaw durability component selected from at least one of air-entraining agent, defoaming agent, and surface active organic polymer; wherein the composition has an air content of about 4% to 20% by volume, more preferably about 4% to 12% by volume, and most preferably about 4% to 8% by volume. The compositions are made from a slurry wherein the water/cementitious reactive powder weight ratio is 0.14 to 0.45:1, preferably 0.16 to 0.35:1, and more preferably 0.18 to 0.25:1. Methods for making the compositions are also disclosed.

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