Voided biaxial slabs are reinforced concrete slabs in which voids reduce the amount of concrete. While concrete has been used for thousands of years, the use. Cobiax [1] slabs contain synethic void forming modules making slabs up to 35% lighter. This has a huge benefit for floor slabs in buildings as. efficient economic sustainable lightweight concrete slabs. Germany. Heinze Cobiax Deutschland GmbH. Otto-von-Guericke-Ring D Wiesbaden.

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The Cobiax advantage for engineers Structure It is decisively easier to keep structural records of the slab building elements and the building as a whole.

It also increases the level of acceptance of the building methods by neighbouring residents and institutions. Let yourself be surprised. Roman concrete Roman engineering Ancient Roman architecture.

This has been confirmed by soab life cycle analysis of the product from manufacture to sustainable demolition. Shape Retention Thanks to the reduced weight of the slabs, distortion of the ceilings themselves is reduced, and the building retains its shape better.

At the beginning of every pioneering development, there are visionaries who turn theoretical possibilities into reliable technology.

Voided Concrete Slabs

An important amount of tests and theoretical research on the subject of Cobiax slabs has been carried out by various academic institutions. Possibility of coobiax span at equal load or high load bearing capacity at an equal span. Also xlab for the top-down technique.

Design The Cobiax flat slab has the same mechanical load bearing behaviour as a solid flat plate slab. The catch phrase “Wider Scopes” extends far beyond the possibilities for modern slab technology. Focus has been on biaxial slabs and ways to reduce the weight. They determine the division of the building into individual rooms or at least dictate the structure of the aesthetic impression.

As the top and bottom of the voided biaxial slab is solid, and the rebars are placed cohiax the solid part, the fire resistance can be designed according to demands. Void formers — positioned between the bottom and top rein- forcement layers — displace concrete. Read below about the types of Cobiax products and meet the advantages of our structural system Cobiax Product: While concrete has been used cobax thousands of years, the use of reinforced concrete is usually attributed to Joseph-Louis Lambot in In this way we are fulfilling an essential precondition of sustainable construction.


Can be used together with prefabs.

Building with Cobiax always means making a commitment to future-oriented solutions in the area of resource conservation and sustainability.

Leave out as much concrete as possible whilst maintaining the full flexural strength of the slab and allowing a bi-axial load transfer. Thanks to the limited weight of the Cobiax slabs, fewer columns are required; additional rooms, with all of the advantages of aesthetics cobax flexible use, are possible.

Double slab, upper and lower. What we mean by that? Cobiax voided flat plate slab technologies are available worldwide. It also reduces the amount of material required. Possibility of single direction structures thanks to the bridge accessory. The overall floor area can be divided down into a series of planned individual elements, up to 3 m wide dependent upon site access, which are manufactured off-site using MMC techniques.

For a voided biaxial slabs with spheres the shear resistance is proportional to the amount of concrete, as the special geometry shaped by the ellipsoidal voids acts like the famous Roman arch, enabling all concrete to be effective.

Of these types, only waffle slabs can be regarded to have a certain use in the market. In practice, the reduced shear resistance will not lead to cobiaax, as balls are simply left out where the shear is high, at columns and walls.

Views Read Edit View history. Simplified changes to the purpose of use. Joseph Moniera French gardener, patented a design for reinforced garden tubs inand later patented reinforced concrete beams and posts for railway and road guardrails.


Please improve it by sllab the claims made and adding inline citations. Georg Miedzik Managing Director.

According to the contractor this may be caused due to the high temperatures during construction. Slab thickness from 15 to 50 cm.

Economical and easy to transport, handle and store, also outdoors. All tested buildings are proven safe, and are reopened.

Investigations according to Eurocodes made at universities in Germany, Netherlands and Denmark, conclude that a voided biaxial slabs acts like as a solid slab. Benefits of the Cobiax flat slab technology The numerous advantages of the Cobiax technology lead to an increased value for all stakeholders involved in the design and exe- cution process of concrete structures for buildings.

Read below about the types of Cobiax products and meet the advantages of our structural system. Cobiax at the Bau fair November 26, Our stand is located in Hall A1, the stand number is Due to the specific shape of the voids, there are no issues with internal pressure. A two way spanning voided biaxial slab construction compared to a traditional two way spanning non voided biaxial slab construction:. Flexible Span up to 20 m. Cobiax voided flat plate slab systems enable larger areas to be spanned, at the same weight.

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The Cobiax advantage for architects Greater design freedom Cobiax voided flat plate slab systems enable larger areas to be spanned, at the same weight. The voids in the concrete slab, which slxb to be cast later, are inserted in the form of void formers or structural formers, both made out of plastic. Improved acoustic behaviour Thanks to the increased stiffness of the lower and upper slabs, acoustic transmittancy is decreased.

Reduction in the number of pillars. Slim-Line Void former height to mm Slab depths 20 to 34 cm.