Posted by Chris on | Comments Off on Earthen Dam Repair
Earthen dams losing water can be injected with polyurethane grout to seal the leak paths. Here holes were drilled along the crest of the dam which enabled lances to be inserted. The lances were then hooked up to a pump and injected with Hyperflex. Hyperflex is a single component polyurethane grout that is moisture activated. Hyperflex is also NSF/ANSI/CAN 61 approved for contact with potable water. This method is less invasive and more cost effective than tradition repair methods. Grouting was performed by grouting contractor Sub-Technical, Inc.
Posted by Chris on | Comments Off on Creek Draining into Abandoned Mine Creating AMD
This dry creek bed was created by the water draining into an abandoned mine below. Not only was this creating a dried-up creek, but the water also leaving the mine at another location was creating acid mine drainage. To prevent the water from entering the mine, the creek bed was injected with polyurethane grout. The grout, Hyperflex, sealed off the leak paths and will help keep the water on the surface. Hyperflex is a single component, moisture activated material that is NSF/ANSI/CAN 61 approved for potable water. Hyperflex is manufactured by SealGuard, Inc. and was installed by grouting contractor Sub-Technical, Inc.
Posted by Chris on | Comments Off on Detention Pond Riser Leak
Stormwater from a parking lot was going through the joints of this detention pond riser. Polyurethane grout was injected to stop the unwanted infiltration. The polyurethane grout that was used was Hyperflex, manufactured by SealGuard, Inc. Hyperflex is a single component, moisture activated grout that is NSF/ANSI/CAN 61 approved for potable water. The grouting was performed by Sub-Technical, Inc. After the grout is cured, the excess and injection packers can be removed and patched over with concrete for aesthetic purposes.
Although structurally sound, this bridge had some hairline cracks that would continually drop water onto traffic below. By inserting mechanical packers alongside the fractures and injecting polyurethane grout, the seepage was able to be stopped. The polyurethane grout used in this application was Hyperflex, a single component, moisture activated material that is NSF 61 approved for contact with potable water. Hyperflex is manufactured by SealGuard, Inc., and the instillation was performed by grouting contractor Sub-Technical, Inc.
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