Patent ID: 8481116
Filing Date: 2013-07-09
Classification: C04B,C23F,Y02W

Abstract:
1. A method for producing a coated basic material for a hydraulic composition, the basic material comprising at least one hydraulic binding agent and particles belonging to at least one of a plurality of subgroups, the method comprising: at least partially coating the basic material with a concrete fluidizer without previously or simultaneously mixing the basic material with water in a hydraulic composition, and at least partially coating the basic material with an additive selected from the group consisting of a flow agent, a retardant, an accelerant, a stabilizer, an aerant, a sealant, and a corrosion inhibitor, wherein the concrete fluidizer is a polycarboxylate having a structural formula A wherein: M=hydrogen, an alkali metal ion, an alkaline earth metal ion, a two or three valence electron metal ion, an ammonia ion, an organic ammonia group or a mixture thereof, R=each R is methyl-, R R a/b/c/d=(0.1-0.9)/(0.1-0.9)/(0-0.8)/(0-0.3), and a+b+c+d=1.