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HomeNewsAvailable ResourcesGeosynthetics Manufacturer Posts Product Videos

Geosynthetics Manufacturer Posts Product Videos

August 15, 2007 rockman Available Resources Comments Off on Geosynthetics Manufacturer Posts Product Videos

GSE Gundseal Video

{youtube}0tnJsU7JKSA{/youtube}

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Geosynthetic reinforced soil (GRS) bridge system, Defiance County, Ohio
Available Resources

Feds eye St. Lawrence NY’s cheap, speedy Geosynthetic Reinforced Soil (GRS) bridges

October 7, 2010 rockman Available Resources Comments Off on Feds eye St. Lawrence NY’s cheap, speedy Geosynthetic Reinforced Soil (GRS) bridges

New York’s St. Lawrence County DOT has attracted the attention of the FHWA…in a good way. The agency has built 5 Geosynthetic Reinforced Soil (GRS) bridge abutments since last fall, and the sixth will be […]

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Failures

Continuing Problems for Ohio Landfill

May 6, 2008 rockman Failures Comments Off on Continuing Problems for Ohio Landfill

The Countywide Recycling & Disposal Facilities in Stark County, Ohio have a new round of problems. There has been much debate over an underground fire reportedly caused by the disposal of aluminum dross waste, a byproduct of aluminum production, dumped between 1993 and 2001. The site has long received complaints for odors and for a long time denied that there was a fire. They have also had problems with slope stability, including a failure of a portion of the south slope in 2006, possibly a result of the destabilizing effect of the fire. Early this year the Ohio EPA cited the facility for violating 8 environmental regulations after waste was found to have migrated outside the permited waste area.

Their latest problems involve a tear or leak of a geosynthetic lining that caps the facility to control gas and odors from the underground fires and regular landfill gas. The leak resulted in 500 to 5,000 gallons of leachate spilling into a sediment pond. The material fortunately did not leave the site and was pumped out of the pond and transfered to a treatment plant where their leachate usually goes. The landfill, one of the largest in Ohio, handles about 6,000 tons of trash a day, including about half of Summit County’s residential garbage.

Story by way of Geosynthetica. Image from Long Live the Village Green.

[…]

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American Society of Testing Materials Logo - ASTM
Standards and Codes

ASTM Updates August 2009

September 2, 2009 rockman Standards and Codes Comments Off on ASTM Updates August 2009

American Society of Testing Materials Logo - ASTMAnother busy month for ASTM with 66 new, revised or otherwise updated standards related to geotechnical and geological engineering (although not as busy as last month). A couple that caught my eye include brand new standards for geospatial data requirements related to abandoned mines, a new standard for sampling of EPS or geofoam, updated standards for mortar and cement, flexural strength of concrete, LA Abrasion test for aggregates, acceptance testing of geosynthetic clay liners, electrical methods for leak detection of geomembranes with earth cover and classification of soils and soil-aggregate mixtures for highway construction purpose (AASHTO classification).

Those involved in the materials testing side of the business should take a close look at the full list as there are also a number of updated standards relating to various asphalt and and aggregate tests, capping of concrete cyllinders and other related testing standards.

For my practice, perhaps the most significant standard that was updated was D 2488 – Standard Practice for Description and Identification of Soils (Visual-Manual Procedure) which we rely on for our field USCS classifications. I’ll be curious to see what those changes entail. Click through for the full list.

[…]

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