U-Boot Technology

Introduction

It is the recycled polypropylene formwork technology used for construction purposes.

One of the obstacles with concrete constructions, in case of horizontal slabs, is the high weight, which limits the span.

It creates lighter economical design for structure.

For this reason major developments of reinforcement concrete have focused on enhancing the span.

This is used to construct two way slab, large span slab, mushroom slab and raft foundation in RCC structure.

It is suitable for high rise building, hospitals and parking management residential and industrial buildings.

In U Boot Technology, slabs are created with large span and makes floors thinner by reducing the weight while maintaining the performance of reinforced concrete slabs.


What is U-Boot Technology?

U-Boot beton is a formwork made of recycled polypropylene.

Void form work placed in between the top and bottom reinforcements of slab.

U-Boot Beton is used to create slabs with large span or that are able to support large loads without beams.

U-Boot Beton is a recycled polypropylene formwork that was designed to create lightened slabs and rafts.

U-Boot system can be combined with other technologies like pre-fabricated with other technologies like pre-fabricated slabs and post tensioned steel. The technology of hollow slabs with post tensioned steel reduces the weight of slab and its thickness.


Materials for U-Boot Technology

  • Cement
  • Steel
  • Fine aggregate
  • Course aggregate
  • Water
  • Recycled plastic mould (u-boot shells)

Types of U-Beton

  • Single U-Beton
  • Double U-Beton

Installation Process

Place lower reinforcement above the formwork.

Now place the U-Boot above the lower reinforcement at the specified intervals provided by the horizontal link connectors.

Now complete the upper reinforcement which above the U-Beton.

Now pouring of concrete is being done.

Now concrete is poured and slab is ready.


Advantages of U-Boot technology

  • Increased number of floors.
  • Large span.
  • Reduced slab thickness.
  • No beams between pillars.
  • Reducing in the number of pillars.
  • Reduction in the overall load of the structure weighing on the pillars and the foundation.
  • Reduced foundations- less deep foundation excavation.
  • Improved acoustic behavior.
  • Economic
  • Pillars spacing is increased
  • Thickness of the slab is reduced

Applications of U-Boot technology

  • Used in public buildings, hospitals, industries, etc.
  • Used in raft foundations.
  • Used in two way slabs.
  • Overall thickness of the slabs reduced.

Benefits of the system

  • Design freedom
  • Down stand beams and bearing walls eliminated
  • Reducing overall costs
  • Reduced dead weight
  • Longer spans between columns
  • Construction is less weather dependent
  • Reduced foundation sizes
  • Reduced concrete usage
  • Environmentally green and sustainable

Conclusion

By using this technology we can save more concrete and steel by that structure is more economical for us.

Less use of iron in the slabs, pillars and foundation up to a total of 15%.

There are anti-seismic advantages connected to reduced building weight slimmer pillars and foundations, there are low chance of seismic effect on the buildings.

Due to the fact, that the structural behavior of this new kind of monolithic flat slab is the same as for solid slab, excluding slab-edge column connection, we surely can talk appropriateness of use and advantages of the new technology.

This technology is very prospective in modern construction and perhaps future of civil engineering belongs to this new kind of hollow slab.


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