Title: Method of manufacturing reinforced fibers for mineral structural materials, and a structural element of a fiber-reinforced mineral structural material

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Abstract: A method of manufacturing reinforcing fibers for a hydraulic binding material, to be used as an initial material for structural elements comprises the steps of providing a plurality of plant fibers and mineralizing the plant fibers. The mineralizing step includes opening the capilaries of the plant fibers, drying the same, impregnating the plant fibers with a lime water suspension, soaking the plant fibers with a formaldehyde-containing water glass solution, and intermediately drying the plant fibers between the impregnating and soaking steps. The plant fibers, after the drying, can be first impregnated with a lime water suspension, then dried, and after this soaked with a formaldehyde-containing water glass solution. It is also possible that the plant fibers, after drying, can be first soaked with a formaldehyde-containing water glass solution, then dried and after this impregnated with a lime water suspension. A structural element has a body of a hydraulic binding material, and a plurality of reinforcing fibers which are formed as mineralized plant fibers.


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