The main component of the efficient anti-segregation agent is a macromolecule microbial polymer. Which have good stability, excellent resistance to segregation, water retention, thickening effect and unique rheological properties. It can effectively prevent the mortar and concrete bleeding and segregation, and overcome the competition adsorption problems between the traditional anti-segregation agent or thickeners and polycarboxylate superplasticizer and effects on early strength. It is particularly suitable for preparation of high end building products, such as grout, self-leveling mortar and self-compacting concrete, etc. Compared with traditional thickeners and anti-segregation agents, DR-2 also overcome many difficulties of traditional anti-segregation agents or thickeners such as competition adsorption with the other additives, measure and dispersion  problems, stick knives, air bubbles and other issues.