Spherical aggregates

Details Spherical aggregates Spherical aggregates

1974-06-19

1976-05-11

Douglas, Winston A.

Compositions: coating or plastic

Materials or ingredients

106 40V, C04B 3300

Patent

active

039560031

ABSTRACT:
A lightweight aggregate suitable for use in the manufacture of lightweight concrete, the lightweight aggregate being in the shape of hollow spheres, the outer surface of which is substantially rough and the inner surface of which is substantially vitrified, the wall being made of fired mineral or ceramic powder, the thickness of the wall being from 0.045 to 0.30 of an inch, the sphere being characterized by an outer diameter of 1/8 to 1 1/2 inches and a saturated surface dried specific gravity of from 1.4 to 1.65.

REFERENCES:
patent: 3458332 (1969-07-01), Alford et al.
patent: 3666506 (1972-05-01), Cowan, Jr. et al.

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