MasterPolyheed 3535 - Superplasticizer for the production of high quality backfilling grouts with exceptional workability retention for TBM tunnels
What is MasterPolyheed 3535 used for?
MasterPolyheed 3535 is a high performance admixture, mainly for use in the annular grouting behind the concrete lining of a Tunnel Boring Machine. At the start of the mixing process the presence of polymeric lateral chains, linked to the polymer backbone of the admixture, generate a steric hindrance which stabilises the hydraulic particles capacity to separate and disperse.
Where can MasterPolyheed 3535 be applied?
MasterPolyheed 3535 is used for the production of high quality grouts.
What are the advantages of MasterPolyheed 3535?
- Production of grouts with low water cement
ratios with excellent workability retention
- Improves the pumping property, especially
with coarse, angular or poorly graded sands