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US 4,280,847 AGranted
Process and apparatus for producing highly colloidized water-cement mixtures and for coating pipes
OwnerWilfried Hacheneyinventor
Life of this patent
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Abstract
The invention relates to a process and apparatus for producing highly colloidized water-cement mixtures and to a process of coating structural members therewith.
Claims8
A process for forming protective coatings for structural components, comprising premixing water and cement in a mixer in a weight ratio between about 0.25 and 0.6 for about 2 minutes at a speed of 300 m/min;
- rotating said water-cement mixture in the same or in a second mixer so that cement grains in said mixture are exposed to a mass acceleration of at least 2 g (g=9.81 m/sec.sup.2) over at least 8 minutes, thereby forming a completely colloidized cement glue;
- applying said cement glue to a structural component to be coated;
- and allowing said coating to set for about 8 to 12 hours.
Dependencies are inferred from the claim text.