MasterFlow 870 - Cementitious high strength, non-shrink precision grout

What is MasterFlow 870?

​MasterFlow 870 is a non-shrink, natural aggregate ​precision grout with excellent high early and ultimate strengths. This cementitious grout is specially formulated to provide extended working time even at high ambient temperatures when mixed and placed at any recommended consistency. 

MasterFlow 870 is normally placed at a flowable consistency to completely fill voids between 10mm and 100mm. Thicknesses greater than 100mm are possible with the addition of an aggregate.

Where are MasterFlow 870 recommended uses?

MasterFlow 870 is used for all precision, non-shrink grouting applications with clearances of 10mm or more including: 

• ​Critical equipment baseplates, soleplates and columns
• Precast wall panels, beams, columns, structural building members ​and curtain walls
• Patching poured in place concrete structures e.g. honeycombing, ​using preplaced aggregate techniques​
• Underpinning
• ​Concrete repair applications where a form and pour ​​material is required
• Applications requiring high ​​early compressive strengths and high​ ultimate ​compressive strengths