Process for making building panels

Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Of inorganic materials

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106672, 106711, 264234, 264333, 264336, 264345, 264DIG43, B28B 114, B28B 150, B28B 152

Patent

active

053975162

ABSTRACT:
A process of molding a building panel which includes the steps of combining about 25 pounds of Portland Cement Type I, about 15 pounds of water at around 21.degree. Centigrade, added about 1 ounce of aluminum, calcium, magnesium, and silica, respectively, and about 12 ounces of synthetic fibers with about 0.1 ounce of ferro chloride in 40% solution by volume, and pouring the mixture into the lower portion of a mold to about 1/2 its depth and waiting for approximately 4 hours for the mixture to increase by about 100% of its original volume to fill the mold and thereafter stripping the mold from the form and placing it in a heated environment for curing for a period of approximately 24 hours and thereafter removing the panel from the heated environment. The panels according to the process are preferably provided with a peripheral groove in the side and upper surfaces so that when placed in generally co-planar relation, a cavity is defined between adjacent panels in which there is a steel reinforcing rod embedded in a pour of concrete to form a wall.

REFERENCES:
patent: 1773000 (1930-08-01), Huber
patent: 2119860 (1938-06-01), Henderson
patent: 3177281 (1965-04-01), Umansky
patent: 3236925 (1966-02-01), Urmston
patent: 3679445 (1972-07-01), Howe
patent: 3808299 (1974-04-01), Svensson
patent: 4067939 (1978-01-01), Lowe et al.
patent: 4124669 (1978-11-01), Urmston
patent: 4132555 (1979-01-01), Barrable
patent: 4341561 (1982-07-01), Britt et al.
patent: 4376086 (1983-03-01), Schubert et al.
patent: 4401471 (1983-08-01), Eckardt et al.
patent: 4422989 (1983-12-01), Hams et al.
patent: 4655979 (1987-04-01), Nakano et al.
"The Clay Worker", "Ferric Chloride as a Coagulant", Aug. 1929, Carey P. Ellis, p. 127.

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