​​​MasterRheobuild 620 - Retarding Superplasticising admixture for concrete

How does MasterRheobuild 620 work?

MasterRheobuild 620 is composed of synthetic polymers specially designed to impart rheoplastic qualities to concrete.

Recommended uses:

  • Ready mixed concrete
  • Long hauls
  • Pumped concrete
  • Concrete containing Granulated Slag/ Pozzolans
  • Mass concrete pours
  • Hot weather concreting

What makes a unique solution?

MasterRheobuild 620 is for < M-40 grade concrete with longer workability retention, mainly for Ready Mix concrete.

What are the features and benefits of MasterRheobuild 620?

  • Reduced thermal peaks
  • High workability for longer periods
  • Lower pumping pressure
  • Resistance to segregation even at high workability
  • Extended setting with longer workability
  • Reduced water content for a given workability
  • Higher ultimate strengths
  • Reduced permeability
  • Improved durability
  • Reduced shrinkage and creep
  • Increased ease in finishing concrete
  • Provides lower in-place cost


MasterRheobuild 620: Technical Data Sheet (March 2013)

pdf (55.95 Kb)