TECHNICAL FIELD

The present invention relates to a field concrete stand that allows a steel mesh to stay on concrete cover range above ground and under final concrete surface by being positioned under the steel mesh in application of a slab on grade. PRIOR ART

The steel mesh is a high strength steel mesh in the form of 15x15 cm grid, essentially used in constructions, manufactured from S220 steel by cold drawing method and by ribbing. Steel bars that are placed inside constructional element and that increase strength of concrete are called steel meshes. In order for concrete to embed the steel properly, spaces that are called concrete cover should be given between foundation and molds and the steel. Thus, concrete poured thereon covers the steel mesh completely. In existing applications, lower steel mesh is tried to be hold away from ground by placing marble parts on backfill concrete or natural soil. Iron bars called concrete cover that ensure upper steel mesh to stand are made by cutting 08 mm construction iron bars in desired sizes and ensuring them to stand vertical by binding by means of rod binder. That application requires too much labor. Final material cannot be produced as a certain type. Labor faulty can be seen excessively on iron bars made. Standard iron bar is

12 m long and it needs to be cut in different sizes according to desired support height and space. That leads to iron losses according to application height. The iron parts that cannot be utilized in different areas become wastages while tons of wastes of small parts come to light after application. While grounds on which applications are performed are stabilized or soil filled, supports move inside the filling when walked thereon. That leads us not to be able to ensure desired concrete cover range. Obtained material is about 500 gr and it can be difficult to carry and transport considering thousands of materials. Currently manufactured supports take up much room when desired to be stored. It is affected by external factors since its material is iron. It becomes moldy and rusty over time when kept outside and loses its property leading to corrosion inside concrete. There are risks for workers to get injured by cutting their hands, to hurt their foot, to stick their finger into rod binder and to have tetanus in terms of occupational health and safety because material is made of iron. As this application is usually conducted in construction site, transportation of raw material (iron) significantly influences costs. This application causes time loss in construction site. Iron mesh on existing iron support should be fastened via wire, wherein this application usually cannot be conducted in construction sites. As a result, iron mesh slides over formed support leading to fluctuations at concrete cover heights.

BRIEF DESCRIPTION OF THE INVENTION

Our invention is a light material made of rigid plastic and can be readily stored and transported while it can be interpenetrated. It may even be transported in trunks of standard passenger cars. Since it is a production of facility and is a final material, it is free of error margin and has no wastages. It eliminates production time loss in the system used currently. It does not get into application ground owing to horizontal protrude located on lower wall of material and full concrete cover is ensured. By means of its vertical protrude on lower portion concrete cover range from soil is ensured. Indicated concrete cover must be between 2 - 5 cm in accordance with the Article 10.1 of TSE500 and the earthquake regulation 2007 for slab on grade. If iron mesh is applied in those ranges above soil ground and under final concrete surface, then desired efficiency is obtained otherwise there would be cracks and collapses. These problems often occur as the time progresses in the existing applications. Our invention is affected from external factors at minimum and is definitely not deformed and does not lose its property inside the concrete after application while it is rigid plastic. It has no adverse effect in terms of occupational health and safety and does not lead to injuries. It also provides benefits to recycling as it may also be produced from waste material. Furthermore, remaining material can be recycled. Our invention provides an average 0,003 m ³ of concrete saving depending on its size since it does not allow concrete to fill in it during application. Assuming that one piece is used in a square meter, an average of 3 m ³ of concrete are saved on slab on grade area of 1000 m ² . In state of the art applications an average of 90 cm (excluding wastages) iron with a minimum diameter of 8mm is used for one. That corresponds to 356 gr/piece of iron. As these irons will not be used anymore by means of our invention it provides savings and contributes to our national wealth.

Description of the Figures

Fig. 1 : Outside view of the support

Fig. 2: Inside view of the support

Description of the References

1 : Main body

2: Steel mesh housing

3: Lower Wall Horizontal Protrude

4: Lower Wall Vertical Protrude

DETAILED DESCRIPTION OF THE INVENTION

Field concrete stand that is subject matter of the invention is manufactured from plastic. Main body (1), lower portion of which is wide and upper portion of which is narrower, has a cylindrical shape. It has steel mesh housing on top portion. It does not slide while steel mesh having two axes is fitted in steel mesh housing (2). It contributes to final efficiency as it is fixed to the support. Slab on grade application made by means of our invention allows to obtain the most compatible concrete cover level according to the regulation. Desired efficiency is achieved after final application. The invention has lower wall horizontal protrude (3) on its lower portion. Thus, the support is prevented from getting into soil. The invention has lower wall vertical protrude (4) on its lower portion. Thus, the concrete cover range of the steel mesh from the soil filling is also ensured. The concrete covers outside of the main body that is subject of the invention since its upper portion is closed and inner side is empty thereby leading to concrete savings.