MasterFlow 816

Aggregate-free cable and duct grout

How does MasterFlow 816 work?

Masterflow 816 cable grout is a cement-based aggregate-free grout. It produces a fluid, pumpable, non-shrink, non-bleeding, high-strength product with extended working time. It provides corrosion protection for highly stressed steel cables, anchorages, and rods.

Recommended uses:

  • Pumping around pre-tensioned or post-tensioned cables and rods
  • Placing around end sections of unanchored cables and rods
  • Non-shrink grouting in restricted spaces between precast wall panels, beams, and columns
  • Grouting cable anchor plates where grout contacts highly stressed anchorages
  • Conventional grouting applications with clearances over 1/4″ (6 mm) but under 1″ (25 mm)
  • Vacuum grouting for repair of voids in previously grouted post-tensioned tendons
  • Inclined and horizontal post-tensioned tendons

What are the unique features of MasterFlow 816?

  • Pumpable
  • Non-shrink / hardens without bleeding or resultant voids
  • Protects tendons from corrosion
  • Can achieve 20–30 second flow per ASTM C 939
  • Flow Cone Method
  • Suitable for conventional grouting where clearances are between 1/4 to 1″ (6–25mm)

What are the benefits of MasterFlow 816?

  • Free of fine aggregate for maximum penetration into small spaces, between wire strands
  • Long working time and recirculation possible at temperatures up to 90° F (32° C)

Download MasterFlow 816 Data Guide