High-performance duct grout for highly stressed steel
How does MasterFlow 1205 work?
MasterFlow 1205 is a cement-based pumpable grout with specially graded aggregate. It produces a pumpable, non-bleeding, high-strength fluid product with an extended working time. The specially graded spherical aggregate mitigates chloride migration while still allowing the product to be easily pumped over long distances through small openings. MasterFlow 1205 meets all the compressive strength and volume change requirements ASTM C 1107 (CRD C621) at a fluid consistency.
Pumping around post-tensioned tendons, cables, and high-strength rods to encapsulate and protect highly stressed steel from corrosion
Placing around end sections of unanchored cables and rods for subsequent tensioning
Filling voids in restricted spaces between wall panels, beams, and columns where grout will contact highly stressed steel
Grouting cable anchor-plates or other plates where grout will contact highly stressed anchorages
What are the unique features of MasterFlow 1205?
High compressive strengths
Hardens without bleeding, settlement, segregation, shrinkage or formation of voids
Minimum 1 hour pumpability at 90°F (32°C)
Prepackaged quality for bag-to-bag uniformity
Compatible with high-strength steel
What are the benefits of MasterFlow 1205?
Integral corrosion inhibitor for added protection of embedded steel reinforcement
Easy to pump or pour for ease of placement
Can be pumped or re-circulated for relatively long periods of time
Can be used over a wide range of mixed grout and placement temperatures