Lightweight fired building products

Details Lightweight fired building products Lightweight fired building products

1987-07-01

1989-12-05

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

110338, 264 56, 4283133, 4283144, 428323, 428330, 428332, 428338, 428402, 501141, 501155, B05D 302, F23M 502, B32B 516

Patent

active

048852031

ABSTRACT:
Brick and tile products are made from a homogeneous mixture of low grade in expensive ceramic microspheres and clay or other binding agent. The microspheres have an axial oxide content under 6 percent by weight and a melting point in excess of the temperature at which brick and tile are fired. The microspheres have random sizes ranging between one third and 200 microns. Brick utilizing the invention is significantly lower in weight and permeability, require much less energy to sinter and less time for firing. Improved thermal and acoustic insulation value is obtained with the invention, and vulnerability to thermal shock is diminished.

REFERENCES:
patent: 4166147 (1979-08-01), Lange et al.
patent: 4537918 (1985-08-01), Parcevaux et al.
patent: 4594213 (1986-06-01), Ealer
Cenospheres from Dry Fly Ash, by H. Jan de Zeeuw and Roland V. Abresch, 1973.
Reduce Part Weight and Cost with Hollow Microspheres for Plastics, by Dr. Elaine C. Barber, 3M, 1978.

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