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  3. Boston Sand & Gravel - Wikipedia

    en.wikipedia.org/wiki/Boston_Sand_&_Gravel

    Boston Sand and Gravel owns railroad track from Ossipee to Rollinsford, New Hampshire, through its railroad subsidiary, the New Hampshire Northcoast Corporation. The location of its plant along the government-owned tracks in Charlestown provides easy access for its gravel trains, through an agreement to use the freight trackage rights kept by CSX .

  4. Basis of estimate - Wikipedia

    en.wikipedia.org/wiki/Basis_of_estimate

    A pivot table in BOEMax, a Basis of Estimate software package. To create a BOE companies, throughout the past few decades, have used spreadsheet programs and skilled cost analysts to enter thousands of lines of data and create complex algorithms to calculate the costs. These positions require a high level of skill to ensure accuracy and ...

  5. Oil sands - Wikipedia

    en.wikipedia.org/wiki/Oil_sands

    The advantage of this method is better production rates and recovery (around 10% versus 5–6% with sand filters in place) and the disadvantage that disposing of the produced sand is a problem. A novel way to do this was spreading it on rural roads , which rural governments liked because the oily sand reduced dust and the oil companies did ...

  6. Atterberg limits - Wikipedia

    en.wikipedia.org/wiki/Atterberg_limits

    The Atterberg limits are a basic measure of the critical water contents of a fine-grained soil: its shrinkage limit, plastic limit, and liquid limit.. Depending on its water content, soil may appear in one of four states: solid, semi-solid, plastic and liquid.

  7. List of launch service providers - Wikipedia

    en.wikipedia.org/wiki/List_of_launch_service...

    A document central to successful launch service provision is the Interface Control Document (ICD), a contract that specifies the integration and mission requirements responsibilities across the service provider and the service solicitor. [7] In some cases, an LSP is not required to launch a rocket.