Meiling Ling Gong

US Patent:

8574360, Nov 5, 2013

Filed:

Feb 24, 2012

Appl. No.:

13/405173

Inventors:

Xiangdong Feng - Upland CA, US
Meiling Gong - Upland CA, US
Chinmay Avinash Gowardhan - Riverside CA, US
Chongjun Jiang - Alta Loma CA, US
Michael John Julius - Rancho Cucamonga CA, US
Amitabha Kumar - Claremont CA, US
Shannon Marie Labernik - Rancho Cucamonga CA, US
Xiangyuan Liu - Rancho Cucamonga CA, US
Liyan Ma - Alta Loma CA, US
Basil Taha Naji - Upland CA, US
Kalynne Hitzeman Paradis - Fontana CA, US
David John Sharman - Rancho Cucamonga CA, US

Assignee:

James Hardie Technology Limited - Dublin

International Classification:

C04B 14/00
C04B 16/00
C04B 24/00
C04B 28/10
C04B 7/00
C04B 7/34
C04B 28/00
C04B 32/00
C04B 18/06
C04B 2/00

US Classification:

106721, 106638, 106705, 106796, 106812

Abstract:

Cementitious formulations and their products with enhanced reactivity are provided. Formulations in certain embodiments may include at least one calcium source, a reactant and a filler in a hydrated environment, wherein the reactant, in one form, is crystalline silica that has been modified for reactivity. Enhancement of a reactant may include one or more modifications to its content, grind and/or the cement to silica ratio, as well as addition of one or more additives in the formulation, additives in the form of at least one alumina source, defoamer, catalyst and/or a clay.

US Patent:

20090090276, Apr 9, 2009

Filed:

Oct 2, 2008

Appl. No.:

12/244753

Inventors:

Xiangdong Feng - Upland CA, US
Meiling Gong - Upland CA, US
Chinmay Avinash Gowardhan - Riverside CA, US
Chongjun Jiang - Alta Loma CA, US
Michael John Julius - Rancho Cucamonga CA, US
Amitabha Kumar - Claremont CA, US
Shannon Marie Labernik - Rancho Cucamonga CA, US
Xiangyuan Liu - Rancho Cucamonga CA, US
Liyan Ma - Alta Loma CA, US
Basil Taha Naji - Upland CA, US
Kalynne Hitzeman Paradis - Fontana CA, US
David John Sharman - Rancho Cucamonga CA, US

International Classification:

C04B 28/12

US Classification:

106640, 106638, 106705, 106812

Abstract:

Cementitious formulations and their products with enhanced reactivity are provided. Formulations in certain embodiments may include at least one calcium source, a reactant and a filler in a hydrated environment, wherein the reactant, in one form, is crystalline silica that has been modified for reactivity. Enhancement of a reactant may include one or more modifications to its content, grind and/or the cement to silica ratio, as well as addition of one or more additives in the formulation, additives in the form of at least one alumina source, defoamer, catalyst and/or a clay.