Patent ID: 8562736
Filing Date: 2013-10-22
Classification: C04B,Y02W

Abstract:
1. A method for improving the properties of a hydraulic cement composition comprising adding a chemical admixture to said hydraulic cement composition, wherein the chemical admixture comprises at least one complex comprising at least one metal and at least one hydroxycarboxylic acid derived ligand selected from the group consisting of sodium glycolatoaluminate(III), sodium lactatoaluminate(III), sodium malatoaluminate(III), sodium citratoaluminate(III), sodium 2-hydroxybutyratoaluminate(III), sodium 3-hydroxybutyratoaluminate(III), sodium citramalatoaluminate(III), sodium tartaratoaluminate(III), sodium mucatoaluminate(III), sodium 2,3-dihydroxybenzoatoaluminate(III), sodium caffeatoaluminate(III), sodium chlorogenatoaluminate(III), lithium glycolatoaluminate(III), lithium lactatoaluminate(III), lithium malatoaluminate(III), lithium citratoaluminate(III), potassium glycolatoaluminate(III), potassium lactatoaluminate(III), potassium malatoaluminate(III), potassium citratoaluminate(III), magnesium citratoaluminate(III), calcium citratoaluminate(III), sodium acetatomalatoaluminate(III), sodium acetatocitratoaluminate(III), sodium malatotartaratoaluminate(III), sodium citratotartaratoaluminate(III), sodium citratomalatoaluminate(III), sodium boromalatoaluminate(III), sodium borocitratoaluminate(III), sodium citratophosphatoaluminate(III), sodium carbonatocitratoaluminate(III), calcium carbonatocitratoaluminate(III), sodium calcium carbonatocitratoaluminate(III), magnesium carbonatocitratoaluminate(III), sodium magnesium carbonatocitratoaluminate(III), malatobismuth(III), sodium malatobismuthate(III), citratobismuth(III), sodium citratobismuthate(III), sodium borocitratobismuthate(III), sodium malatoaluminate(III)bismuthate(III), sodium citratoaluminate(III)bismuthate(III), sodium citratomagnesate(II), sodium citratocalcate(II), sodium malatoindate(III), sodium malatogallate(III), sodium malatoferrate(III), sodium malatozincate(II), sodium malatozirconate(IV), sodium malatolanthanate(III), sodium malatoyttrate(III), sodium citratomolybdate(VI), sodium citratotungstate(VI), and combinations thereof.