Capsules for concrete from a fiber and ice and method of their production

摘要

Capsules (2) for reinforcing fibrous concrete and comprising the individual fibers (1) formed as coiled elements and the solid wrappers (4) made of ice. The method of the production of the capsules with reinforcing fibers consists in that first the individual fibers are prepared as coiled elements whereupon each individually coiled fiber is enclosed in the wrapper made of a water droplet and the capsule formed in this way is then rapidly frozen, preferably by means of the action of liquid nitrogen having the temperature of -196°C. The method of the production of the reinforced fibrous concrete consists in that the capsules prepared in the aforesaid way are dispensed into the concrete mixture.