06290770 is referenced by 24 patents and cites 77 patents.

A cementitious mixture comprises a hydraulic cement; greater than about 10% by weight of a pozzolanic cement replacement selected from fly ash, slag, natural pozzolans, and mixtures thereof, based on the weight of said hydraulic cement and cement replacement; and a compatabilizing admixture, wherein the compatabilizing admixture comprises a compatabilizing derivatized polycarboxylate polymer dispersant capable of acting as a water reducer, in combination with an accelerator. The derivatized polycarboxylate dispersant, alone or in combination with other derivatized polycarboxylate dispersants, is a polymer comprising units derived from at least one of a substituted carboxylic acid monomer and a substituted ethylenically unsaturated monomer, at least one of an N-polyoxyalkylene maleimide and a condensation product of an unsubstituted carboxylic acid monomer and an alkoxypolyoxyalkylene primary amine substituted carboxylic acid monomer, and optionally including an unsaturated hydrocarbon. The derivatized polycarboxylate dispersant provides for a longer shelf life dispersant, improved dispersability of cementitious mixtures, water reduction in cementitious mixtures, and is an effective dispersant in high pozzolan replaced cementitious mixtures.

Title
Cementitious mixture containing high pozzolan cement replacement and compatabilizing admixtures therefor
Application Number
9/371627
Publication Number
6290770 (B1)
Application Date
August 11, 1999
Publication Date
September 18, 2001
Inventor
Thomas M Vickers Jr
Concord Township
OH, US
Jeffrey R Bury
Macedonia
OH, US
Runhai Lu
Stow
OH, US
John Moreau
Roswell
GA, US
Agent
Renner Kenner Greive Bobak Taylor & Weber
US
Assignee
MBT Holding
US
IPC
C04B 7/13
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