MasterRheobuild 865 - A high range, water-reducing superplasticiser for rheoplastic concretes 

Formerly Rheobuild 865


MasterRheobuild 865 is formulated from synthetic polymers specially designed to impart rheoplastic qualities to concrete. 

A rheoplastic concrete is a fluid concrete, easily flowing, but at the same time free from segregation and bleeding having the same w/c ratio as that of a low slump concrete without admixture with a slight set retarding effect. Also, it provides a substantial water reduction effect for promoting high, early and ultimate strengths. 

MasterRheobuild 865 is chloride-free.

Where is MasterRheobuild 865 applied?

  • Microsilica concrete 
  • Mass concrete pours
  • Ready-mixed concrete 
  • Long distance transport 
  • Pumped concrete 
  • Casting in hot climates

What are the advantages of MasterRheobuild 865?

  • Reduced thermal peaks 
  • High workability for longer periods 
  • Lower pumping pressure
  • Delayed setting with longer workability
  • Higher ultimate strengths 
  • Reduced permeability 
  • Improved durability 

Product Information

Techncial Data Sheet


MasterRheobuild 865 MSDS

pdf (43,71 Kb)

MasterRheobuild 865 TDS

pdf (220,08 Kb)