Method of producing silicate-containing granulates
AssigneeAarding Weerstandlas B.V.
InventorHendrik Loggers
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Abstract
The invention relates to a method of producing silicate-containing granulates having a density of more than 0.7 kg/dm3 and a size of 2 to 40 mm, by mixing sand, a calcium oxide-containing product and water, forming granules and curing same in a moist atmosphere without any substantial condensation of moisture upon the granules to be cured. The granules contain 10 to 14% of moisture and curing is effected at temperatures above 90.degree. C. The granules may contain a filler, such as fly ash.
Claims9
A method of producing calcium silicate-containing granulates by mixing a calcium oxide bound-containing product with a silicon-containing product, water and, if desired, a filler, subsequently forming granulates from said mixture by means of a heating treatment, while maintaining said granulates in a heated vapour atmosphere, wherein said heated vapour atmosphere is formed by having a heating fluid chosen from moist and non-moist heating fluids acting indirectly upon the granulates in such a way that any direct moisture condensation from the heating fluid upon the granulates is prevented.
Dependencies are inferred from the claim text.