Nortex employees stabilizing Houston area freeway with TerraThane Polyurethane Foam
Press Releases

Nortex and TerraThane Stabilize Houston Area Highways

Houston’s Highways, Some of Busiest in Nation, Use Innovative TerraThane Polyurethane Foam Technology to Repair Bad Bridge Approaches, Uneven Joints, and Roadway Depressions.

Nortex employees stabilizing Houston area freeway with TerraThane Polyurethane Foam

MOUNT AIRY, NC—Highways around Houston, TX, known as one the nation’s worst cities for traffic behind Los Angeles, D.C., and Atlanta, need constant repair, but can’t be closed while the work is done. Nortex Concrete Lift and Stabilization, Inc., a Ft. Worth, TX company, recently completed a whirlwind repair project on one of the city’s busiest corridors in the NE quadrant where I-10, 610 Loop, I-59, and I-69 feed millions of cars daily to, from, and around Harris County.

Normal groundwater erosion beneath the highways causes the concrete highway slabs to drop, roadway depressions, uneven bridge approaches, and uneven joints that make driving bumpy and uncomfortable, dangerous, and causes severe wear and tear on automobiles.

To make the repairs, the Texas Department of Transportation, TXDOT, brought in Nortex. The company carefully planned out the repairs for the half million pound project, and sent out four crews each with it’s own box truck rig to use a relatively new technology called “foamjacking.” Foamjacking uses high-density polyurethane foam to fill the subterranean voids, and lift the concrete slabs to proper level. “We’ve been lifting and stabilizing roadways with polyurethane foam since we got into the business back in 2003,” says Casey Derosa, asst. gen. mgr. of Nortex. “It’s a far superior method versus the old way of mudjacking.” Mudjacking is a ubiquitous term for a mix of mud, sand, cement, crushed limestone, and water hydraulically pumped into large holes drilled into the concrete slabs to fill voids and level the slabs. Mudjacking uses more and much larger equipment, and requires larger holes to be drilled. It typically requires the roadway to be closed much longer than foamjacking, and takes more time to clean up.

[Editor] Click through for the rest of the press release from GeoPrac sponsor NCFI Polyurethanes. [/Editor]

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Project Related

URETEK ICR restores concrete, but your golf game?!?!

Leaky Pipe Causes Soggy Fairway

Sometimes you need a geotechnical pro more than a golf pro to improve your game.

As a golfer, mechanics are a vital part of how you play the game… however, soggy course conditions can affect your game just as much as your golf pro. Click through to see how URETEK alleviated soggy fairway conditions at a premiere course in Texas.

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American Society of Testing Materials Logo - ASTM
Standards and Codes

ASTM Updates for March, 2012

American Society of Testing Materials Logo - ASTMThis post contains a list of new, revised and otherwise updated ASTM standards that pertain to the geotechnical engineering, materials testing and related fields. Standard C39/C39M for testing the compressive strength of concrete cyllinders was updated, as was C42/42m for obtaining and testing drilled cores and sawed beams of concrete.  The month of March also saw several geosynthetic standards being updated or added, including new standards for selecting the test method for geomembrane seams, and for testing the flexural rigidity of geogrids and other geosynthetics.  There are also a few updated standards related to asphalt mix design and sampling of asphalt.  Click through for updated ASTM Standards relating to geoprofessionals.

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American Society of Testing Materials Logo - ASTM
Standards and Codes

ASTM Updates September 2010

American Society of Testing Materials Logo - ASTMLast month there were several updates to standards involving texting the flexural strength of concrete as well as updates to some masonry and dimension stone standards.  ASTM D6926 – Standard Practice for Preparation of Bituminous Specimens Using Marshall Apparatus has been updated, so if you are involved in asphalt pavement testing, make sure you go and find out what the changes are. There are also a whole slew of groundwater and site investigation standards that were reapproved.

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Press Releases

Dataforensics’ PDensity and PConcrete implemented for Houston Rapid Transit Joint Venture

Norcross, Georgia, October 1, 2010 – Dataforensics software applications PDensity and PConcrete are being used by the HRT joint venture currently building the Houston Light Rail Project; a $1.46 billion dollar design, build and maintenance contract.

[Editor] Click through for the rest of this press release from GeoPrac.net sponsor Dataforensics. [/Editor]

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American Society of Testing Materials Logo - ASTM
Standards and Codes

ASTM Updates August 2010

American Society of Testing Materials Logo - ASTMThe folks at the ASTM Committee on Concrete and Concrete Aggregate have been very busy recently.  The past month has seen a whole slew of new and revised standards on concrete sampling and testing.  Be sure to check it out if you are in the CQA biz.

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American Society of Testing Materials Logo - ASTM
Standards and Codes

ASTM Updates April 2010

American Society of Testing Materials Logo - ASTMStandards governing the testing of tensile strength of geogrid and geotextile tensile strength are among the standards updated over the past month by the ASTM. This includes a new standard for "Determining Small-Strain Tensile Properties of Geogrids and Geotextiles by In-Air Cyclic Tension Tests". A number of standards relating to concrete including capping of concrete cyllinders for testing have also been updated. Click through for the list.

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American Society of Testing Materials Logo - ASTM
Standards and Codes

ASTM Updates March 2010

American Society of Testing Materials Logo - ASTMDeformability and strength of weak rocks using in situ UCS test, fluvial sediment terminology, concrete and concrete aggregate terminology and nondestructive testing terminology are among the ASTM Standards revised this month. There are also some reapprovals that are noteworthy, including chain of custody procedures and some asbestos and peat related standards.

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