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  2. Crushed stone - Wikipedia

    en.wikipedia.org/wiki/Crushed_stone

    Crushed stone has one of the lowest average by weight values of all mineral commodities. The average unit price increased from US$1.58 per metric ton, f.o.b. plant, in 1970 to US$4.39 in 1990. However, the unit price in constant 1982 dollars fluctuated between US$3.48 and US$3.91 per metric ton for the same period.

  3. Carmeuse Lime & Stone (railroad) - Wikipedia

    en.wikipedia.org/wiki/Carmeuse_Lime_&_Stone_...

    The Carmeuse company operates two shortline railroads carrying freight along the shoreline of Lake Huron and Lake Michigan in the U.S. state of Michigan. Carmeuse operates two major Michigan quarries, and uses a variety of transportation methods, including stub short lines, to carry crushed stone and aggregate to waterfront locations where the material can be placed on conveyor belts for water ...

  4. Construction aggregate - Wikipedia

    en.wikipedia.org/wiki/Construction_aggregate

    In Europe, sizing ranges are specified as d/D, where the d shows the smallest and D shows the largest square mesh grating that the particles can pass. Application-specific preferred sizings are covered in European Standard EN 13043 for road construction, EN 13383 for larger armour stone, EN 12620 for concrete aggregate, EN 13242 for base layers of road construction, and EN 13450 for railway ...

  5. Marble Cliff Quarry Co. - Wikipedia

    en.wikipedia.org/wiki/Marble_Cliff_Quarry_Co.

    The company grew through the expansion of stone grades from one to six and market-specific divisions that cater their products to specific industries, and at one point employed as many as 500 men. [ 4 ] [ 3 ] By 1928, Marble Cliff Quarry was producing 3 million tons of stone per year, and purchased land in Muskingum County to expand their ...

  6. Permanente Quarry - Wikipedia

    en.wikipedia.org/wiki/Permanente_Quarry

    That line required a wye at the Simla Junction. On October 1, 1939, Permanente became a Class A, non-agency station on the Los Altos Branch of Southern Pacific. [21] From the outset objections to the plant were lodged by neighboring farmers who were afraid that cement dust would adversely affect their wine grapes, apricot, cherry, and prune trees.

  7. Hardwick and Woodbury Railroad - Wikipedia

    en.wikipedia.org/wiki/Hardwick_and_Woodbury_Railroad

    The Hardwick and Woodbury Railroad (H&WRR, or H&W) was a short-line railroad serving the towns of Hardwick and Woodbury, Vermont.Built to serve the local granite industry by bringing rough stone from the quarries to the cutting-houses, the railroad was about 7 miles (11 km) long, plus leased track, extended to about 11 miles (18 km) at its greatest extent.

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  9. Track ballast - Wikipedia

    en.wikipedia.org/wiki/Track_ballast

    The appropriate thickness of a layer of track ballast depends on the size and spacing of the ties, the amount of traffic on the line, and various other factors. [1] Track ballast should never be laid down less than 150 mm (6 inches) thick, [5] and high-speed railway lines may require ballast up to 0.5 metres (20 inches) thick. [6]

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