Mark S Fitzgerald

US Patent:

46407154, Feb 3, 1987

Filed:

Mar 6, 1985

Appl. No.:

6/708732

Inventors:

Richard E. Heitzmann - Pearland TX
Mark Fitzgerald - Houston TX
James L. Sawyer - Friendswood TX

Assignee:

Lone Star Industries, Inc. - Greenwich CT

International Classification:

C04B 700

US Classification:

106 85

Abstract:

A dry, mineral binder composition is disclosed having from 6 to 25 parts by weight metakaolin, 3 to 30 parts by weight dry potassium hydroxide, 0 to 18 parts by weight slag, 0 to 60 parts by weight of a material selected from the class consisting of fly ash, calcined shale, and calcined clay, and from 1 to 150 parts, by weight, of a finely divided silica, preferably an amorphous silica. The binder is particularly useful in combination with Portland cement for forming concrete compositions.

US Patent:

46421378, Feb 10, 1987

Filed:

Mar 6, 1985

Appl. No.:

6/708689

Inventors:

Richard F. Heitzmann - Pearland TX
Mark Fitzgerald - Houston TX
James L. Sawyer - Friendswood TX

Assignee:

Lone Star Industries, Inc. - Greenwich CT

International Classification:

C04B 700

US Classification:

106 85

Abstract:

A binder composition for Portland cement is disclosed, said composition including 100 parts by weight metakaolin and, based upon said metakaolin, from 20 to 70 parts by weight slag; from 85 to 130 parts by weight of at least 1 material selected from the class consisting of fly ash, calcined shale, and calcined clay; from 70 to 215 parts by weight finely divided silica, preferably amorphous silica; and from 55 to 145 parts by weight of a mixture of potassium silicate and potassium hydroxide, wherein at least 55 parts by weight is potassium silicate. The binder composition can be mixed with Portland cement or with a combination of Portland cement and fly ash to provide a composition curable to a material having a high early strength and a high ultimate strength.

US Patent:

20200270176, Aug 27, 2020

Filed:

May 11, 2020

Appl. No.:

16/872228

Inventors:

- PUTEAUX, FR
Mark Winslow FITZGERALD - Humble TX, US
Charles Walter ALT - Chesapeake VA, US
Philippe THOUILLEUX - L'isle D'Abeau, FR
Ratana SOTH - Lyon, FR
Michaël LIEVIN - Veyrins-Thuellin, FR

International Classification:

C04B 28/06
C04B 7/32
C09K 8/46

Abstract:

Disclosed is a calcium aluminate cement, including a calcium aluminate with a first crystallised mineralogical phase of calcium dialuminate CA2 including one calcium oxide CaO for two aluminium oxides AlOand/or a second crystallised mineralogical phase of dicalcium alumina silicate C2AS including two calcium oxides CaO for one aluminium oxide AlOand one silicon dioxide SiO. The mass fraction of all of the first and second mineralogical phases in the calcium aluminate is greater than or equal to 80%.

US Patent:

20180208510, Jul 26, 2018

Filed:

Jul 27, 2016

Appl. No.:

15/744227

Inventors:

- Puteaux, FR
Mark Winslow FITZGERALD - Humble TX, US
Charles Walter ALT - Chesapeake VA, US
Philippe THOUILLEUX - l'Isle d'Abeau, FR
Ratana SOTH - Lyon, FR
Michael LIEVIN - Veyrins-Thuellin, FR

International Classification:

C04B 28/06
C04B 7/32
C09K 8/46

Abstract:

Disclosed is to a calcium aluminate cement, including a calcium aluminate with a first crystallised mineralogical phase of calcium dialuminate CA2 including one calcium oxide CaO for two aluminium oxides AlOand/or a second crystallised mineralogical phase of dicalcium alumina silicate C2AS including two calcium oxides CaO for one aluminium oxide AlOand one silicon dioxide SiO. The mass fraction of all of the first and second mineralogical phases in the calcium aluminate is greater than or equal to 80%.