DE6923580U - STEEL COMPONENT FOR REINFORCED CONCRETE STRUCTURES - Google Patents

Description

Patent attorneys Dipl.-Ing. RWeickmann,

Dipl.-Ing. H.Weickmann, Dipl.-Phys. Dr. K. Fincke SCGARK Dipl.-Ing. F. A. Weic.kmann, Dipl.-Chem. B. Huber

G 69 23 580.9 8 MUNICH 86, DEN

POST BOX 860 820 MÖHLSTRASSE 22, CALL NUMBER 483921/22

Dipl. Ing.Josef Krückl Eisenhandel OHG, Munich for (D

Paul-Gerhardt-Allee

Steel component for reinforced concrete structures

The innovation relates to a steel component for reinforced concrete structures, in particular a reinforcement insert or a spacer with a rust protection coating.

Modern reinforced concrete construction methods increasingly require that at least parts of reinforcement inserts and spacers be protected against rust.

It is known to encase reinforcement inserts for foam concrete with a plastic. The manufacture of this anti-rust coating is very complex, because e.g. the entire grid construction for plates is heated up and converted into a Plastic powder must be immersed. Then must the plastic mass in a special furnace by sintering hardened.

In the case of spacers, it is known to galvanize them or to dip them in anti-rust paint. Galvanizing is expensive and can can only be carried out in specially equipped companies. Treatment with anti-rust paint is often not an option Sufficient because the paint rubs off during storage, loading and transport, so that mostly the spots again which are to be protected become bare and susceptible to rust.

It is also known to provide a spacer with feet made of a plastic. However, this rust protection is very expensive. For example, 60 feet must be attached by hand to a standard spacer basket with a length of 225 cm will.

Finally, it is known to protect spacer feet with a plastic compound. The whole spacer baskets immersed in a hot plastic bath. The liquid plastic is contained in a tub, which heated electrically or, for example, with gas.

All previously known processes, steel components for reinforced concrete structures Protecting against rust is either very expensive or can only be carried out in specialist companies are afflicted with major quality defects.

In contrast, the innovation is based on the task of avoiding these disadvantages.

This object is achieved according to the innovation in a steel component of the type mentioned in that the rust protection coating is a two-component plastic.

The advantages of the new steel component are surprising. A two-component plastic compound is applied to the point of use E.g. as plastic paint and as hardener delivered separately. Therefore no devices for heating are necessary and

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As long as the plastic has not yet been mixed, it has an almost unlimited shelf life. A two-component plastic can also be used can be processed outdoors at any temperature, including Prost. The dangers of having a heated one Plastic mass catches fire by the heating system also excluded.

The steel components provided with a rust protection coating according to the innovation can be used on the smallest construction sites without With the help of a special company, even the smallest quantities can be produced quickly and without problems, as the one to be hardened Component portion of the two-component plastic and the Hardener mixed and processed in any quantity and therefore only individual reinforcement inserts or spacers can be protected against rust as required.

Another advantage is that the mix ratio can be determined by the processor himself. This can save plastic wetness, because often only a thin one Coating is sufficient, the thickness of which cannot be selected individually, e.g. for plastic compounds to be heated.

It has proven to be particularly advantageous as the component portion of the two-component plastic that is to be hardened to choose at least predominantly a polyurethane compound.

The two components are only mixed shortly before use, and expediently depending on the outside temperature or humidity so that the two-component plastic contains from one seventh to one quarter of a hardener.

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If what withstands it, it may be sufficient if the rust protection is only applied to those places that are particularly prone to rust. These are especially the spacer feet. The anti-rust coating can take the place of the well-known attached feet. He's got the extra one here Puncture of an anti-slip device for the spacers.

To explain the innovation in more detail, the drawing shows a section of reinforced concrete reinforcement. These has a reinforced concrete mat 1 and a spacer 2, both of which are completely covered with a two-component plastic at the construction site are coated

Claims (5)

-ft - 5 protection claims 1. Steel component for reinforced concrete structures, in particular reinforcement insert or spacers with a rust protection coating, characterized in that the rust protection coating is a two-component plastic. 2. Steel component according to claim 1, characterized in that the component portion to be hardened of the two-component Kunststcffs is at least predominantly a polyurethane compound. 3. Steel component according to claim 2, characterized in that the two-component plastic has a proportion of one
Contains seventh to a quarter of a hardener. 4. Steel component according to one of claims 1 to 3 as a spacer, characterized in that the anti-rust coating is applied only in places. 5. Steel component according to claim 4, characterized in that the Eostschutzuberzug only on the spacer feet is appropriate.