Tenders Are Invited For Sewer Repair Under The Theater Using The Trenchless Method

The Subject Of The Contract Is The Repair Of The Sewage System In Polička, Vrchlického Street At No. 53 And 351 By The Trenchless Inversion Method (Hot Water Curing Technology), Or See Below For Its Alternative. The Inverse Method Belongs To The So-Called Trenchless Inverse Sleeve Methods (Cipp Technology). It Is A Felt Insert That Consists Of One Or More Layers Of Non-Woven Fabric Made Of Synthetic Fibers And, Based On The Calculated Thickness, Is Precisely Manufactured For The Given Pipe Dimensions (Circumference, Dn, Length). The Bedding Prepared In This Way Is Saturated With A Suitably Formulated Polyester Resin. The Installation Of The Inverse Lining Takes Place Via An Inversion Device (Inversion Tower, Inversion Drum) And The Subsequent Polymerization Occurs By Heating The Entire Volume Of Water In The Section In Question. Heating Is Carried Out Using A Special Mobile Technological Device (Mobile Boiler Room). The Lining Will Be Made In Accordance With The Čsn En Iso 11296-4 Standard.