Patents Assigned to L. P. Weidemann & Sonner I/S
  • Patent number: 4786450
    Abstract: Method for the production of building elements preferably brick facings by granulation of a mixture of 40-60% by weight of cement, 60-40% by weight of aggregate, 0.5-2% by weight of thickening agent such as carboxymethylcellulose and preferably coloring agent or one or more additives and water in an amount of 8-17% by weight based on the dry matter of the mixture, hot pressing the granules under a pressure of 50-100 kg/cm.sup.2 and at a temperature above 100.degree. C. to form single elements or a string, and cutting the string into single elements, and storing the elements in a humid atmosphere until a considerable setting of the cement has taken place. The method is considerably simpler and quicker than the known methods for the production of brick facings.
    Type: Grant
    Filed: September 8, 1986
    Date of Patent: November 22, 1988
    Assignee: L. P. Weidemann & Sonner I/S
    Inventor: Jorn U. Weidemann