Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...
Patent
1989-06-01
1990-02-13
Bell, Mark L.
Compositions: coating or plastic
Coating or plastic compositions
Metal-depositing composition or substrate-sensitizing...
106 87, 106 97, 106 75, 106 76, 106 82, 106 88, 106 95, C04B 2408, C04B 2826
Patent
active
049003593
ABSTRACT:
A stable, non-shrinking cellular concrete in which cell integrity is maintained and cell coalescing is substantially eliminated is provided by the addition of a colloidal solution or sol-gel of sodium bentonite, peptized calcium bentonite, attapulgite or a gelled silica sol-gel, such as a sol-gel of sodium silicate-calcium chloride, to a cellular concrete mix. The improved cellular concrete is characterized by an increased strength to weight ratio and is therefore more suitable for use in structural applications as well as for insulation purposes. Moreover, the improved cellular concrete is buoyant since it absorbs substantially no water in its cells since the cells have not coalesced and are not interconnected. By virtue of the non-coalescence and non interconnection of the multitudes of tiny cells in this novel buoyant cellular concrete, which is capable of floating on a body of water, a cross-sectional cut through a mass of this lightweight concrete reveals a generally uniform structure of tiny individual and mostly symmetrical separate cells, distinctly different in appearance from the random larger, smaller, often interconnected and lopsided cells found in a cross-section of conventional cellular concrete. The improved cellular concrete is especially suitable for use in producing lightweight aggregate.
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Adams Bruce L.
Bell Mark L.
Brunsman David M.
Lisa Concrete Inc.
Wilks Van C.
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