Fabric useful as a concrete form liner

Details Fabric useful as a concrete form liner Fabric useful as a concrete form liner

1990-12-11

1992-06-23

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Removal of liquid component or carrier through porous mold...

249113, 249134, 249135, 249141, 249189, 264219, 425 84, B28B 126, B28B 736

Patent

active

051241021

ABSTRACT:
Concrete forms utilizing a concrete form liner including a two-sided fabric having a different range of pore sizes on one side compared to the opposite side. In one embodiment, a microporous coating, such as an ethylene-vinyl chloride microfoam dispersion, is placed on one side of a porous fabric to controllably reduce the pore size of the fabric on that side to between 0.2 to 20 microns. The coated fabric is used in combination with a support and a grid to form a concrete casting system wherein the coated side of the fabric is placed directly in contact with the concrete. The microporous coating stabilizes the surface fibers of the fabric thereby reducing the tendency of the fibers to stick to the concrete. The pore size of the coated side of the fabric must be small enough to substantially keep all concrete particles from passing through the fabric, but sufficiently open to permit the passage of water and air.

REFERENCES:
patent: 2310391 (1943-02-01), Brooks et al.
patent: 2628402 (1953-02-01), Billner
patent: 2671940 (1954-03-01), Billner
patent: 2688175 (1954-09-01), Billner
patent: 3477103 (1969-11-01), Troth, Jr.
patent: 3600771 (1971-08-01), Dyrander
patent: 3726950 (1973-04-01), Turzillo
patent: 3780975 (1973-12-01), Turzillo
patent: 3821062 (1974-06-01), Henderson
patent: 3991244 (1976-11-01), Debbas
patent: 4162190 (1979-07-01), Ashworth
patent: 4213926 (1980-07-01), Toyoda et al.
patent: 4335065 (1982-06-01), Ando
patent: 4439273 (1984-03-01), Curry
patent: 4500588 (1985-02-01), Lundstrom
patent: 4657806 (1987-04-01), Dutt
patent: 4730805 (1988-03-01), Yokota et al.
patent: 4761326 (1988-08-01), Barnes et al.
patent: 4787597 (1988-11-01), Yokota et al.
patent: 4851281 (1989-07-01), Wood
patent: 4856754 (1989-08-01), Yokota et al.
patent: 4863792 (1989-09-01), Mrozinski
patent: 4877679 (1989-10-01), Leatherman et al.
patent: 4882217 (1989-11-01), FitzPatrick
Typar.RTM. Report 6, Dam Construction on the River Euphrates, A Smooth Improvement (Nov. 88).
IABSE Symposium Report, "Improvement of Surface Quality of Concrete Structures by Unique Framework", Tanaka et al. (Sep. 87).
Nikkei New Materials, No. 32, pp. 117-120, Aug. 1987 (partial translation 3rd row, line 9, p. 117 to 1st row, line, 9, p. 118).
DuPont Zemdrain Bulletin (1990)-For High-Quality Concrete Surfaces.
Co-pending U.S. Pat. Application Ser. No. 07/472,902 filed Jan. 31, 1990.

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