soil resistance News

  • New calibration tool for teaching soil rupture resistance

    A new calibration tool was recently developed to help students and soil scientists calibrate their thumb and forefinger for the correct amount of pressure. C.A. Seybold and colleagues, USDA-NRCS, Lincoln, NE, write about this new tool in the 2009 issue of Journal of Natural Resources and Life Sciences Education. Rupture resistance is a measure of the strength of a soil to withstand an applied ...

  • Describing Soils: Calibration tool for teaching soil rupture resistance

    A new calibration tool was recently developed to help students and soil scientists calibrate their thumb and forefinger for the correct amount of pressure. C.A. Seybold and colleagues, USDA-NRCS, Lincoln, NE, write about this new tool in the 2009 issue of Journal of Natural Resources and Life Sciences Education. Rupture resistance is a measure of the strength of a soil to withstand an applied ...

  • Cleankill® Tackles Resistant Bugs

    Many viruses and bacteria are becoming increasingly resistant to traditional cleaning and disinfection. The new range of Cleankill® and Viktor hygiene products distributed by Camlab is based on a powerful, broad spectrum virucidal and bactericidal agent with proven effectiveness against such organisms as MRSA, E. coli, Salmonella, Pseudomonas and Enterococcus. Several different practical ...


    By Camlab Limited

  • Resisting subsidence pitfalls with Tensartech retaining wall solutions

    Extensive underground mining in south Poland posed a significant challenge to construction of the A1 motorway which forms part of the connection between the Czech border, Piekary Slaskie and on to northern Poland. To accommodate potential differential settlement on the approach embankments to bridge structures, the engineering consultant consortium addressed the challenge by designing ...


    By Tensar International

  • Puraflex - Hydrocarbon and Chemical Resistant Barrier Membrane

    Puraflex is a new chemical resistant barrier membrane material resistant to hydrocarbons and toxic industrial chemicals. Industrial Textiles & Plastics Ltd is a manufacturer of chemical protective clothing materials and membranes resistant to chemical and biological warfare agents. Developed specifically as a chemical barrier membrane, Puraflex’s patented technology ...

  • At UN, global leaders commit to act on antimicrobial resistance

    World leaders today signalled an unprecedented level of attention to curb the spread of infections that are resistant to antimicrobial medicines. Antimicrobial resistance (AMR) happens when bacteria, viruses, parasites, and fungi develop resistance against medicines that were previously able to cure them. For the first time, Heads of State  ...

  • Absorbing organic pollutants in soils

    A new study closely examines the role degrading plant materials play in absorbing organic pollutants in the soil. These “biopolymers” are the waxy, water resistant barriers between the plant cells and the environment. This information is important to evaluate the role of these biopolymers as a natural sorbent for organic pollutants in the environment. The study, reported in the ...

  • Precompression stress in soils

    The precompression stress as a factor to assess the mechanical stability of soils is predictable by using pedotransfer functions. Over the past decades arable soils have been deteriorated because of the heavy machinery on the farm. Increase loads enhance subsoil compaction which is mostly irreversible. As a consequence of this deformation, the soil productivity decreases while the erodibility ...


  • Mercury-resistant bacteria useful for studying toxic metal cycling

    Mercury-resistant bacteria could help scientists to understand more about mercury cycling in the environment. In a new study, researchers identified one particular strain of soil bacterium that could serve as a model for the conversion of the toxic metal into less toxic forms. They also discovered a new gene involved in the conversion process. Bacteria play an important role in the cycling of ...

  • Portable XRF for soil and waste screening

    The new xSORT hand-held XRF spectrometer from SPECTRO Analytical Instruments can achieve laboratory-quality analysis on soil and waste samples.  Laboratory analysis by X-ray Fluorescence Spectrometry has been an accepted technique for the analysis of such materials for many years and was given official approval by European Standard EN 15309:2007. Using the simple sampling procedures ...

  • First accurate test for arsenic in soil developed

    If you have a cat or dog who likes to hide under the deck or children who play on equipment made with pressure-treated wood, you’ll be glad to hear that analytical chemist Julian Tyson and colleagues at the University of Massachusetts Amherst recently developed the first-ever accurate test for arsenic compounds in soil, promising a significantly improved environmental and health impact ...


    By ScienceDaily

  • ASTM D6066 - 11 Standard Practice for Determining the Normalized Penetration Resistance of Sands for Evaluation of Liquefaction Potential

    Normalization of penetration resistance data is a frequently used method to evaluate the liquefaction susceptibility of sands. A large case history database from many countries has been accumulated to estimate instability of saturated sands during earthquakes (1,2,3,4). This test is used extensively for a great variety of geotechnical exploration programs where ...


    By ASTM International

  • Do nanoparticles affect the health of the soil ecosystem?

    New research reveals that many microorganisms, including bacteria and protozoa, show little sensitivity to fullerene nanoparticles applied to soil samples. However, fast-growing bacteria decreased in number and the genetic diversity of bacteria and protozoa altered slightly. This could affect the bottom of the food chain, which may have long-term implications for the overall health of the soil ...

  • Soil nailing is ideal for tight spaces or areas

    According to OSHA, excavation is one of the most hazardous construction operations. The greatest risk for worker fatalities is from cave-ins. But excavation is a necessary part of many construction projects. There are several different options for earth retention during excavation. The decision is typically made by the Project Team based on project logistics – how deep ...


    By sinorock

  • Soil Association responds to David King`s attack on organic farming

    Peter Melchett, Soil Association Policy Director, responds to David King's attack on organic farming in his inaugural speech as President of the British Association for the Advancement of Science 'To blame the Soil Association or UK consumers of organic food for the decades of hunger and starvation in Africa, including the current terrible suffering of people in a country like Zimbabwe, as Sir ...


    By Soil Association

  • German soil monitoring programme could assess impacts of GM crops

    Effective regulation of genetically modified organisms (GMOs) calls for monitoring of the potential environmental risks. This study explored whether the German permanent soil monitoring programme could be a useful tool for this purpose. The researchers say the programme has potential to monitor the effects of GMOs on local soil communities, but that adaptations would be necessary. The first ...

  • EC hosts high-level conference on soil and climate change

    The European Commission this week hosted a high-level conference on the relationship between soil and climate change, and the role of soil management in climate change mitigation and adaptation. Organic matter plays a fundamental role supporting soil fertility, retaining water, sustaining biodiversity and regulating the global carbon cycle. But organic matter is in decline, and the conference ...

  • Gas sensors `see` through soil to analyze microbial interactions

    Rice University researchers have developed gas biosensors to “see” into soil and allow them to follow the behavior of the microbial communities within. In a study in the American Chemical Society’s journal Environmental Science and Technology, the Rice team described using genetically engineered bacteria that release ...


    By Rice University

  • Q&A about national general survey on soil contamination in China

    MEP and MLR announced the report on the national general survey on soil contamination today, and the survey results showed the general condition of the soil environment across the country not optimistic; some areas are suffering from bad soil pollution, the environmental quality of the arable land is worrying, and there are pressing soil environmental problems in industrial and mining deserted ...

  • ASTM D3080 / D3080M - 11 Standard Test Method for Direct Shear Test of Soils Under Consolidated Drained Conditions

    1. Scope 1.1 This test method covers the determination of the consolidated drained shear strength of a soil material in direct shear. The test is performed by deforming a specimen at a controlled strain rate on or near a single shear plane determined by the configuration of the apparatus. Generally, three or more ...


    By ASTM International

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