Process of production of colloidal mortar and product according to this process
AssigneeArbed S.A.
InventorsFernand Artois, Raymond Linden, Alberg Feitler
Life of this patent
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Abstract
A process of producing a colloidal mortar suitable for use as a lining of steel conduit pipes, boilers or the like, includes filling a mixer with water while imparting to water a rotary motion by a rotary agitator at a speed of 1500 m/minutes, feeding the mixer with cement while maintaining the rotary motion whereby the mixture forms a funnel-like profile within the mixer and adding to the mixture wet sand of humidity of 5-15% and in proportion of 1 to 2 parts of the cement content to obtain the colloidal mortar. Fiber rovings may be added to the colloidal mortar.
Claims5
A process of production of colloidal mortar, for use particularly in lining of shaped components of steel, such as conduit pipes, boilers and the like, comprising the steps of filling a mixer with water in proportion of 25 to 60% relative to the quantity of cement to be filled into the mixer;
- imparting to water a rotary motion by means of a rotary agitator so that the peripheral velocity at the external diameter of the agitator will amount to a minimum of 1500 m/minutes, charging the mixer with cement whilst maintaining the rotary motion of the agitator, or reducing it to half of said peripheral velocity, said mixture forming during said rotary motion a funnel-like profile having a center;
- adding to the mixture a proportion of 1 to 2 parts of sand relative to the quantity of cement in the mixer, the sand having a humidity of 5-15% and being fed into the mixer so that the wet sand will reach the center of said funnel-like profile formed by said mixture;
- and continuing agitation for about 2 minutes until the colloidal mortar is obtained.
Dependencies are inferred from the claim text.