Use of statistic comb polymers as dispersing agent

It statistical comb polymers are described which are available by the radical copolymerization of a vinylic poly (alkylene oxide) compound (A) having an ethylenically unsaturated monomer compound (B) according to the "Catalytical Chain Transfer (CCT)" - method. These comb polymers are ideal for hydraulic binder suspension based on cement, lime, Gypsum and anhydrite, as they conventional compared to fluidizers on the basis of comb polymers according to the prior art a better water reduction capability at the same dose exhibit. also have the appropriate building material mixtures after the addition of these comb polymers a significantly reduced stickiness and plastic viscosity, which is particularly processability of very cement-rich building material mixtures, such. as concrete, greatly improved. Furthermore, show the building material mixtures using the proposed inventive flow agents as compared to those with conventional polycarboxylate superplasticizers at the same slump significantly higher slump. The building material mixtures So and in particular concretes have a with the same water / cement ratio stronger shear-thinning Behavior than conventional concretes, but without segregation ( "Bleeding") to tilt.