Patent ID: 8835535

Claim:
A dispersion, comprising, water, at least one precipitated silica, at least one silicate, or a combination thereof and at least one superplasticizer, wherein the superplasticizer is a water soluble polycarboxylate ether, a BET surface area of the at least one precipitated silica, at least one silicate, or a combination thereof is greater than 50 m 2 /g, the precipitated silica, silicate, or combination thereof is in the form of aggregates, agglomerates or combination thereof, a media diameter of the aggregates, agglomerates or combination thereof is less than 1 μm; the proportion of silica is from 5 to 50% by weight, based on the total amount of the dispersion, and the dispersion is free of inorganic dispersants and latex, and the superplasticizer/silica weight ratio is from 1/100 to 100/1.