Tests were conducted to evaluate the performance of a neoprene-coated nylon membrane placed as a dustproofing surfacing on a soil area and held in place by improvised anchor systems, and to determine the suitability of the membrane anchored in this fashion for operations of the CH-21C helicopter. In the laboratory, the membrane was tested to determine its weight, tensile and tear strengths, elongation, permeability, and resistance to weathering, flame, heat, cold, and fuel spillage. In the field, the prefabricated, 156-ft-square surfacing was placed over natural and constructed subgrades and secured in place by flat-plate and arrowhead anchor systems. The surfacing, anchored with interior rings and a perimeter row of flat-plate anchors, was subjected to operations of the CH-21C helicopter to simulate aircraft traffic normally occurring on a hastily prepared, pioneer-type helicopter landing pad. (Author)


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    Title :

    Anchor Systems for Prefabricated Membrane Surfacing for Army Helicopter Landing Pads. Engineering Tests, May 1964


    Contributors:

    Publication date :

    1965


    Size :

    2 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English