POLIFLOW
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UNDERGOUND & TUNNELLING LINE UNDERGROUND & TUNNELLING Technical Features Physical state: powder POLIFLOW is a powdered product added to cement to produce pumpable, non-segregable, impermeable, shrinkage-compensated cement-based grout with optimal adhesion to steel and superior tensile strength. Colour: dark Main chemical action: expansive W/C ratio reducer Secondary chemical action: pumping adjuvant Rating: UNI EN 934 - 2 ASTM C 494 Type G Proportion: 6 kg per 100 kg of cement Storage: 12 months Noxiousness level in compliance with 88/379 EEC: no The primary uses for cement-based grouts with the POLIFLOW additive are: • anchoring steel cables, bars or tie bars subject to increased stress; • injecting sheaths shielding stranded steel cable in prestressed concrete; • injecting rock and soil, masonry, etc.; • filling porous and hollow concrete, etc.; • filling sealed structural joints. • POLIFLOW provides fill grout with superior protection against corrosion caused by aggressive agents; • superior fluidity and absence of bleeding enables you to produce highly pumpable grouts that are easy to inject; • superior tensile strength in both short and long curing stages; • superior adhesion to steel and concrete. Whether in the plastic or hardening phase, grout mixed with the POLIFLOW additive expands, ensuring complete cavity filling; • its workability time enables you to work easily, even in high temperatures; • impermeability and absence of chlorides and other harsh substances provides optimal protection to steel cables and bars; • cables in prestressed post-tensioned structures are completely protected against stress corrosion. The POLIFLOW proportion is 6 kg for every 100 kg of cement and 30-38 litres of water. Mix the POLIFLOW cement-based grout in a conventional on-site concrete mixer. Pour 80% of the mix water (about 25 litres) into the concrete mixer, add POLIFLOW first then pour in the cement. Mix for 3-4 minutes until plastic and well blended. Add the remaining 20% water (about 5-7 litres) and mix for 2-3 more minutes until the grout is fluid. INJECTION PROCESS POLIFLOW After preparing the grout, keep it moving continuously. Typically, it will be pumpable for at least 2 hours. Should pumpability time be less, make sure that the cement is not showing any signs of quick or premature setting. Carry out the injection process continuously, without stopping. PACKAGING & STORAGE POLIFLOW is available in 12 kg bags. This product keeps its features unchanged for one year if properly stored in its original packaging. DRACO Italiana S.p.A. - Via Montegrappa 11 D/E - I-20067 Tribiano, Milan, Italy Tel. +39 0290632917 - Fax +39 0290631976 - info@draco-edilizia.it

UNDERGOUND & TUNNELLING line © Copyright 2010 - All rights reserved - The following specifications provide reliable details about our current best knowledge and know-how. Changes may take place according to the accuracy of the application steps we shall not be held responsible for. For this reason, our warranty only covers the quality and life of the products according to then specifications. This issue invalidates and replaces the previous ones.