Method for the production of building elements particularly suited for use as brick facings
AssigneeL. P. Weidemann & Sonner I/S
InventorJorn U. Weidemann
Life of this patent
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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.
Claims18
A method for producing a building element suitable for use as a brick facing, said method comprising the steps of
- (a) forming a mixture of 40-60% by weight of cement, 40-60% by weight of aggregate, 0.5-2% by weight of thickening agent, and water;
- said cement, aggregate and thickening agent being dry materials and said water being present in an amount of 8-17% by weight, based on the weight of said dry materials,
- (b) granulating said mixture formed in step (a),
- (c) pressing said granulated mixture from step (b) at a pressure of 50-100 kg/cm.sup.2 and at a temperature of more than 100.degree. C. in a mold to form a solid intermediate product with a steam film on its surface which acts as a release agent, and
- (d) releasing said solid intermediate product from said mold and subjecting it to a humid atmosphere until said cement component therein has partially set, thereby providing said building element.
A method for producing a plurality of building elements suitable for use as a brick facing, said method comprising the steps of
- (a) forming a mixture of 40-60% by weight of cement, 40-60% by weight of aggregate, 0.5-2% by weight of thickening agent, and water;
- said cement, aggregate and thickening agent being dry materials and said water being present in an amount of 8-17% by weight, based on the weight of said dry materials,
- (b) granulating said mixture formed in step (a),
- (c) pressing said granulated mixture from step (b) at a pressure of 50-100 kg/cm.sup.2 and at a temperature of more than 100.degree. C. in a mold to form a first solid intermediate product with a steam film on its surface which acts as a release agent,
- (d) releasing said first solid intermediate product from said mold and cutting into a plurality of second solid intermediate products, and
- (e) subjecting each of said plurality of second solid intermediate products to a humid atmosphere until said cement component therein has partially set, thereby providing said plurality of building elements.
Dependencies are inferred from the claim text.