Posts in the ‘Polyurethanes’ Category

How do you seal a leaking dam?

It's no surprise that a hydro electric dam in New York state that is more than 100 years old might have a few leaks that need sealing. That was definitely the case with the Curtis Palmer Dam in Corinth, N.Y., which had both gushing and weeping leaks. Some of the leaks were so bad that the walkway inside the dam ...

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How do I repair a seawall?

Your seawall or bulkhead is failing and you’ve decided to have it fixed. What approach should you take? It depends on the nature of the failure, but leaking joints, cracks and soil erosion are primary issues. You can excavate and back fill the wall, but if it's leaking, this is only a temporary fix. Injection of the soil behind the wall with ...

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Field Notes: Florida lake seawall repair

Foundation Professionals of Florida is in the midst of a seawall repair project on Lake Harris in Lake County, Florida. The lake is very large and popular, host to bass fishing tournaments and the like. The homeowner returned from vacation recently to find a section of her yard adjacent to the seawall caving in, so she was afraid her ...

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Field Notes: Crack injection at a water treatment plant

Tech services was in Virginia this week to train a crew on crack injection with polyurethane grout to seal leaks in concrete. The crew is working at a water treatment plant and is using Prime Flex 900 XLV, our super low viscosity polyurethane grout. It was a perfect example of how a hydrophilic—water loving—chemical grout is a great option in ...

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Field Notes: Grouting electrical conduit in NYC

Our technical services staff is back from a quick trip to New York City to do on-site training with one of our customers there, who is doing a project for the Metro Transit Authority of New York City. The project is to seal the annular space around 25 or so electrical conduits inside am MTA utility vault in the Bronx because ...

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Seawall repair provides valuable lessons

Seawall repair or replacement can be a hugely expensive undertaking. Sealing leaks and filling voids left by erosion can be done more economically and with far less disruption than with excavation in most cases. A Prime Resins customer specializing in seawall repair recently used chemical grouting for the first time to seal a badly compromised seawall, fill massive voids behind the ...

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Case Study: Foam lifting an industrial floor

"This method was a success and broke paradigms in Brazilian engineering," says the contractor and distributor who did the job in Brazil that lifted a sinking concrete floor — and two 3300-gallon tanks along with it. Following up on our Field Notes from this job in Porto Alegre, where Precision Lift 4.0# and Prime Flex 920 polyurethane foams were used for void ...

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Field Notes: Seawall and pool deck repair

A quick dispatch from the field, where we are providing on-site technical support to the great guys at Ideal Construction. They are in the midst of repairing a seawall — including void filling and leak sealing — and the pool deck of a home in West Palm Beach, Fla. The job is going well, the Prime Flex 920 is filling the voids ...

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Lifting tanks with Precision Lift 4.0

Just in from the field, these pictures show before (L) and after (R) of 3300-gallon tanks that were listing dangerously close together. The concrete slab they sit on had settled, causing the dangerous tilt. The tanks were successfully lifted back into level, vertical position with our Precision Lift 4.0# polyurethane foam. This is a beverage manufacturer in Brazil. We'll ...

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Prime Flex 920 showcased in Canadian magazine

The current issue of Canadian Underground Infrastructure magazine prominently features a profile of a project in Kingston, Ontario, led by strataWORKS. The contractor on the job was Dynamite Contractors. The City of Kingston had tried several other methods to seal stubborn gushing leaks in a manhole. By the city's own measure, this manhole had 12 million liters of infiltration a ...

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