Grain bin at a Williamsburg, Virgina poultry processing facility that had foundation settlement issues
Press Releases

Grain Bin Settlement Problems Common to Concrete Foundations Solved with NCFI’s Geotechnical Polyurethane Foam Technology

Grain bin at a Williamsburg, Virgina poultry processing facility that had foundation settlement issuesNew Solution Saves Money and Time Preventing Loss of Grain and Equipment Damage

MOUNT AIRY, NC—Soil consolidation and settlement happens. It’s a fact of farm life. Secondary consolidation slowly forces water out of the spaces between soil particles. As this happens, soil particles move close together and settling occurs. Floors drop and become uneven. Newer grain silos and bins are using concrete floors instead of metal, and as secondary consolidation occurs beneath them, depressed or “settled” areas, form within the bin. Grain accumulates in the depressed areas, but cannot be retrieved by the bin sweeper. In fact, the sweeper, a kind of auger that transports grain up from the floor, can become damaged from prolonged exposure to the uneven floor.

This is exactly what Kirk Roberts of CJGeo, a Williamsburg, Virginia-based commercial foundation repair and geotechnical contractor, found when he got the job to repair the foundation of a massive 106-foot diameter grain bin at a poultry processing facility on the Eastern Shore of Maryland. “Once they removed the hundreds of thousands of bushels of grain, we found the floor had dropped some three inches in one section of the bin leaving a large pocket of grain out of reach of the bin sweeper.”

[Editor] Read on for the rest of this press release from GeoPrac sponsor NCFI Polyurethanes. [/Editor]

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ASTM No. 57 Stone
Articles

The Curious Case of No. 57 Stone

ASTM No. 57 StoneThe American Society for Testing and Materials, or ASTM, No. 57 stone is often used as sub base fill material below road surfaces and buildings. It is a fragmented stone with angular edges and is regularly utilized as a drainage layer when used with geotextile fabric. Although the material is touted by many as "self-compacting," excess voids left from zero compactive effort in locations with little confinement may not eliminate the possibility of future settlement. What happens when the environment above the No. 57 stone causes it to settle?

[Editor] Read on for the answer to this interesting question in the case of settlement of a structure at the University of North Carolina at Chapel Hill. The contributed article by Katherine Witt describes how URETEK Mid-Atlantic used their high-density polyurethane resin to stabilize the No. 57 stone beneath a settled foundation as well as lift the surrounding slab back into place. [/Editor]

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Using TerraThane products for lifting concrete pavement of I-85 in Atlanta, a Hayward Baker project.
Press Releases

NCFI Polyurethanes and the Geotechnical and Geoenvironmental Business

Using TerraThane products for lifting concrete pavement of I-85 in Atlanta, a Hayward Baker project.

NCFI Polyurethanes’ TerraThane Product Line Quickly and Quietly Improving Bottom Line for North American Geotechnical and Geoenvironmental Businesses

MOUNT AIRY, NC—The distinctly American company, NCFI Polyurethanes, is known for pioneering innovative, improved, and unique uses for one of their main product offerings: polyurethane foam. Since the company’s scientists and engineers began formulating polyurethane foam back in 1967, other chemical systems companies have been saying, “wonder what they’ll come up with next?” So, it was really more of a “holy cow” moment in the 1990s when NCFI began formulating foam systems for geotechnical uses: highway and roadway repair, bridge approach repair, concrete lifting, leveling and void fill. And it’s no surprise that like all NCFI product lines, TerraThane geotechnical foam is quietly changing the way entire industries work for the better.

[Editor] Read more about the many applications of GeoPrac.net sponsor NCFI’s TerraThane in Geotechnical and Geoenvironmental projects! [/Editor]

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No Picture
Articles

Solid Foundation for Grain Storage

Solid Foundation for Grain Storage

URETEK ICR was contacted regarding settlement in two identical 1.5 million bushel grain flat storage buildings.   The overall structure dimensions were 600 ft. long by 135 ft. wide with a Quonset style roof . Below the floor of the storage buildings, a tunnel with conveyance system and a series of aeration tunnels were installed to facilitate moisture control and grain transport. 

[Editor] Check out the rest of this contributed Article from Ty Taylor of URETEK ICR, a GeoPrac.net sponsor. Ty describes how the foundations were lifted and stabilized using the URETEK Method®  [/Editor]

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new-bern
Press Releases

Troubled Eastern NC Riverfront Convention Center Gets Lifeline from Hayward Baker and TerraThane™ Geotech Foam by NCFI Polyurethanes

new-bern

MOUNT AIRY, NC—The 12-year-old riverfront Convention Center in New Bern, NC was in trouble. The building’s exterior is supported by pilings driven deep in the ground, but the floors sit directly on the earth and silt of the old riverbed. The land was in-filled by old docks and building debris in the 1970s and settling, erosion, and construction mistakes were taking their toll on the building.

Parts of the floor and patio sunk up to seven inches, cracks and uneven joints in the concrete slab floors were causing walking/tripping hazards, and gaps beneath walls were allowing sound to pass between what were designed as soundproof rooms.

[Editor] Click through for the rest of the press release from NCFI.  Disclosure: Hayward Baker is a sponsor of GeoPrac.net. [/Editor]

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Underground parking garage in 'Uptown' area of Dallas that needed TerraThane polyurethane foam
Press Releases

Posh Dallas Parking Center Saves Millions with TerraThane Geotechnical Polyurethane Foam by NCFI

Underground parking garage in 'Uptown' area of Dallas that needed TerraThane polyurethane foam

MOUNT AIRY, NC—In-ground parking garages in Dallas, TX experience the same thing: erosion of the soil beneath them, and silt infiltration that overwhelms and clogs the drainage system, thus causing more and worse erosion. The keys are catching it early enough, and choosing the right solution to keep it from happening again.

The three-story, in-ground parking garage at McKinney Ave. and Worthington St., the main thoroughfare of the Dallas’ “Uptown” area and home to some of the poshest apartments, business addresses, shopping, hotels, restaurants and bars, had silt and water infiltration, so the owners called in Edens Structural Solutions, Bixby, OK, with 30 years experience of structural lifting and repair. David Edens, company president, says they studied the problem and decided on geotechnical polyurethane foam. “Our solution was to use void-filling TerraThane geotech foam. It’s simple to apply, expands and cures in place, and is an excellent water and air barrier,” says Edens.

[Editor] Click through for the rest of the press release from NCFI [/Editor]

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Press Releases

Polyurethane Used in Marcellus Shale Region Pipeline

Pipeline Contractor Uses Advanced Technology Product in Challenging Marcellus Shale Region: Saves Money, Reduces Labor Costs and Erosion, and Protects Pipeline

MOUNT AIRY, NC—As the largest consumers of world energy, the U.S. is counting on natural gas to play a greater role in our energy mix. The U.S. Energy Information Administration (EIA) predicts U.S. demand to increase 14 percent from 2008 to 2035 with heavy growth in the industrial and utility sectors, which means infrastructure for extracting, transporting, and storing gas is increasingly vital.

Companies like Canada’s Talisman Energy and it’s U.S. partners, are racing to build that infrastructure by putting down and protecting essential pipeline in rough, rural areas like the Marcellus Shale region of northeastern PA where severe climates can be challenging and requires new technologies like TerraThane polyurethane foam systems.

[Editor] Click through for the rest of this press release from NCFI [/Editor]

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2011-08-31_11-46-33_299
Press Releases

Challenging WV Transmission Station Pipeline Job on 58-Degree Slope Uses TerraThane by U.S. Company, NCFI Polyurethanes

2011-08-31_11-46-33_299

MOUNT AIRY, NC—A recent pipeline job at Dominion Resource’s extraction/fractionation plant in Pine Grove, WV presented some pretty hairy challenges. First the pipeline was to be laid on a 58-degree hillside. Trucks, excavators, and other equipment had to be wenched up the slope and held in place by cables attached to heavy equipment. Secondly, it was the rainy season, so erosion of the freshly turned earth was a major concern. [Editor] Click through for the rest of the press release. [/Editor]

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