Reinforcing elements for increasing the strength of self-setting pasty materials

Abstract

The invention relates to a reinforcing element (10) for increasing the strength of a self-setting pasty material, said reinforcing element being made of a bendable wire comprising a central part (12) with corresponding arms (11) at least in three Protrude from this central portion in two directions and each arm (11) has at least two spaced wires (13), and the arm (11) has an outer end formed by a corresponding loop (14), said loop (14) are formed by making bends of the wires (13) of the relevant arms (11) and in each loop (14) the distance between the wires (13) is at twice the size of the wires (13) to twenty-five times, and the arms (11) are arranged in such a way that at least one of said arms (11) is arranged in any half-space separated by any plane passing through said central portion (12) .

Description

technical field [0001] The invention relates to a reinforcing element made of bendable wires for increasing the strength of self-setting pasty materials. Background technique [0002] The description in the prior art section of EP 2 206 848 A1 includes references to various early disadvantages of reinforcing concrete to eliminate the use of steel bars as reinforcing members - i.e. A detailed overview of solutions for the need for costly and difficult assembly work with steel components. [0003] These solutions feed and mix a large number of smaller reinforcing elements into the concrete while it is still in a paste state, and after the concrete has set, the resulting structure has a higher load capacity than would be possible without said elements , but it cannot achieve the strength provided by a properly designed steel reinforcement system. In this publication, small rolls are placed in water soluble capsules to prevent interconnection and clogging of the rolls during t...

AI Technical Summary

Problems solved by technology

[0010] Among the disadvantages of the known composite reinforcing elements may be mentioned the following (not for completeness): During mixing, the elements tend to stick to each other, whereby their spatial distribution will be inhomogeneous

Furthermore, since the material of the reinforcing elements is steel, which is heavier than concrete or composite, after pouring the mixture into the final mold, they tend to sink in the material before hardening and the distribution along the height can become uneven

A further disadvantage is that the reinforcing element does not have a form-fitting connection to the composite material, but is only connected via a surface attachment established between the reinforcing element and the composite material, and this connection is not as strong as a form-fitting connection

Yet another disadvantage is the anisotropic strength of such reinforced materials, since the shape of the elements does not guarantee the same properties in all directions, the strength cannot therefore be calculated accurately in advance

Said elements are prone to corrosion, and corrosion usually starts at the edge surfaces of the structure or its cracked surfaces, which sooner or later deteriorates the strength, while on the outer surfaces rusted threads will be visible, which deteriorates its appearance

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