cpt hole Articles

  • Incotec Bolivia CPT case study

    Vertek partner Incotec recently entered the cone penetration test business area with the purchase of a Vertek S4 Push System. Learn more about the geotechnical market in their home country of Bolivia and  ...

  • A Pluvial Deposition Method to Reconstitute Well-Graded Sand Specimens

    Stationary pluviators generally use one or more sieves to spread the sand flow exiting from the hopper through one or more holes over the desired area. On the other hand, traveling pluviators do not need a sieve or mesh because in this case it is possible to move an opening or a nozzle over the area of interest. Traveling pluviators are preferable to stationary pluviators, especially in the case ...


    By ASTM International

  • Field Screening Methods for the Presence of DNAPL, Superfund Site, southern California

    Characterizing the lateral and vertical extent at a Dense Non Aqueous Phase Liquid (DNAPL) impacted site can prove to be a challenging task. Field methods employed to verify the presence of DNAPL have included the use of down-hole Ultraviolet Induced Florescence technologies, the application of down-hole detection materials such as dye impregnated fabrics, and the installation of monitor wells ...


    By Hargis + Associates Inc

  • Brazil Conflicted over Road-Paving Plan

    O n Oct. 9, 1970, Brazil’s military president Gen. Emílio Garrastazu Medici and a group of his ministers walked into thick Amazon forest near the then-tiny Pará state town of Altamira. Several miles in, they stopped and, as Medici looked on approvingly, workers felled a large tree to mark the start of construction of the country’s Trans-Amazon Highway. A memorial plaque at the site announces that ...


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