Water Sealing Blog - Tag: Seal

Concrete Segment Polyurethane Injection

By Chris on 09-24-2019

Leaking concrete segments are injected with polyurethane grout in a tunnel that was created by a tunnel boring machine. The grout used was Hyperflex, which is injected as a liquid. The liquid material reacts with moisture and creates a hydrophobic foam to stop the infiltration. ... Read More

Category:  Company Information
Tags:   TBM Segment Concrete Injection Seal leak Tunnel Grouting Polyurethane 

Mining: Water, Ground, and Gas Control Challenges

By Chris on 01-29-2018

Mining encompasses many challenges for ground, water, and gas control. However, injection of polyurethane grout can provide a permanent fix. Grouting contractor Sub-Technical, Inc. has been providing solutions for over 25 years. Emergency roof control, massive inundations of water, and ... Read More

Category:  Company Information
Tags:   Mine Roof Control Water  ventilation Seals High Pressure Grouting Coal  

Leaking Sandbags Sealed

By Chris on 10-19-2017

During a recent bridge replacement, sandbags were used to create a dry work area in the middle of a river.  However, the sandbags could not created a water tight seal.  SealGuard's parent company, Sub-Technical Inc. was called to control the water.  After SealGuard II... Read More

Category:  Company Information
Tags:   SealGuard Sandbag bridge replacement Sub-Technical leaking sandbags coffer dam 

CSO (TBM) Tunnel Leak Sealed by Sub-Technical

By Teresa on 01-27-2016

One hour and 55 gallons of chemical grouting & this leak was sealed by chemical grouting company Sub-Technical Inc using polyurethane grouts from SealGuard Inc.  This video shows the access shaft leading to the CSO (Combined Sewer Overflow) Tunnel that is part of the Storm ... Read More

Category:  Industry News
Tags:   Sealguard II extreme leak cso tunnel tmb shaft