Method for preparing fibers for mixing into a sprayed concrete m

Details Method for preparing fibers for mixing into a sprayed concrete m Method for preparing fibers for mixing into a sprayed concrete m

1976-08-02

1978-05-30

Jenkins, Robert W.

Agitating

Mortar mixer type

Methods

366 8, 366 10, 366 19, 366 31, B28C 520, B28C 540, B28C 546

Patent

active

040927377

ABSTRACT:
The invention provides a method and apparatus for preparing precut steel fibers initially packed in bundles or occurring as closely packed lumps for mixing with concrete as a sprayed mass, the method comprising the steps of tumbling the bundles or lumps of fibers, dropping quantities of the fibers onto an inclined plane, subjecting the fibers to an air stream to cause said fibers to become parallel to each other, and mixing the fibers with a mass of concrete in the air stream.

REFERENCES:
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patent: 2577784 (1951-12-01), Lynam
patent: 2719336 (1955-10-01), Stotler
patent: 3093364 (1963-06-01), Schoonover
patent: 3452400 (1969-07-01), Kane et al.
patent: 3547412 (1970-12-01), Klages
patent: 3643416 (1972-02-01), Andrews et al.
patent: 3675409 (1972-07-01), Rosenstein
patent: 3751011 (1973-08-01), Milik
patent: 3812553 (1974-05-01), Marshall et al.
patent: 3894315 (1975-07-01), Fukuta et al.
patent: 3995867 (1976-12-01), Katzenberger

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