Concrete module unit

Details Concrete module unit Concrete module unit

1977-02-15

1978-09-05

Hoffman, James R.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428218, 428220, 428339, 428448, 428451, 428452, 428513, B32B 1312, B32B 2710, B32B 706

Patent

active

041121732

ABSTRACT:
A casting sheet comprising medium to high density polyethylene provides low release resistance when used as a liner for casting concrete articles. The casting sheet may comprise polyethylene-coated paperboard having a polyethylene coating on both sides, and such sheet be employed, for example, as a separator for concrete wall panels cast on-site in a superposed manner for tilt-slab construction or for other concrete construction.

REFERENCES:
patent: 2677165 (1954-05-01), Copenhaver et al.
patent: 3927245 (1975-12-01), Roth
Table 8.8, "Blow Molding", Jones & Mullen, Reinhold Pub. Corp., 1971, p. 85.

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