Method for the production of a fiber-reinforced hydraulically setting material
AssigneeAmiantus, (A.G.)
InventorsOtto W. Gordon, Peter E. Meier, Gero Buttiker
Life of this patent
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Abstract
Asbestos-free fiber reinforced hydraulically setting materials, which comprise a slurry of one or more hydraulic binding agents, fibers, water and perhaps additional additives, are obtained when, as fiber, 2 to 20% by volume of filter fibers and 0,5 to 20, preferably 1 to 10% by volume reinforcing fibers are used, both of which are subjected to preliminary treatment which improves their dispersability. By means of the preliminary treatment the fibers can be uniformly distributed in the slurry. The material can be worked on apparatus common for the production of asbestos cement and used for the same purposes as asbestos cement.
Claims16
In a method for the production of a fiber reinforced hydraulic setting material, in which a hydraulic binding agent is mixed with fibers and water to form a slurry, the improvement wherein said fibers comprise 2 to 20% by volume based on the solid content, of filter fibers and 0.5 to 20% by volume based on the solid content of reinforcing fibers, both of which fibers are subjected to a treatment which increases their dispersability in the slurry comprising depositing a compound which is substantially insoluble in water on the surface of the fibers, and wherein water in a quantity greater than is necessary to set the binding agent is added.
In a process for producing a fiber reinforced element, the improvement comprising using a fiber reinforced hydraulic setting material produced by mixing a hydraulic binding agent with fibers in water to form a slurry and further wherein said fibers comprise 2 to 20% by volume based on the solid content, of filter fibers and 0.5 to 20% by volume based on the solid content of reinforcing fibers, both of which fibers are subjected to a treatment which increases their dispersability in the slurry comprising depositing a compound which is substantially insoluble in water on the surface of the fibers, and wherein water in a quantity greater than is necessary to set the binding agent is added and further including at least partially de-watering said material, shaping said material and then allowing said to set.
Dependencies are inferred from the claim text.