Method for manufacture of foam glass

Details Method for manufacture of foam glass Method for manufacture of foam glass

1974-11-14

1976-04-20

Kellogg, Arthur D.

Glass manufacturing

Processes

With pore forming in situ

65 20, 106 40V, C03B 1908

Patent

active

039516326

ABSTRACT:
A foam glass is manufactured by mixing silicate glass, a volcanic glass material (volcanic ashes of a special chemical composition, occurring in the Kyushu District of Japan), water glass and at least one member selected from the group consisting of sodium salts and calcium salts of phosphoric acid, firing the resultant mixture into a fused state and cooling the fused mixture. The foam glass has a high aluminum content, contains numerous fine bubbles less than 1.5mm in diameter, has a bulk density of less than 1 and shows excellent mechanical strength such as, for example, high bending strength.

REFERENCES:
patent: 3150988 (1964-09-01), Dess et al.
patent: 3459565 (1969-08-01), Jones et al.

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