VOIDED SLAB – BUBBLE DECK TECHNOLOGY

In the 1950s, hollow-core slab were
invented. The voided or hollow core system
was created to reduce the weight of the
concrete from the system. This concept
removes and replaces concrete from center
of the slab, where it is less useful with
lighter material in order to decreases the
dead weight of concrete floor. However,
these hollow cavities significantly decrease
the slab resistance to shear and fire, thus
reduce its structural integrity.
Bubble deck slab is the slab in which some
amount of the concrete is replaced by the
plastic bubbles or ellipsoid which are made
by the waste plastic material, which
reduces the self-weight of the structure.
Design of this type of the slab is based on
the Euro and the British codes.
In the 1990s, a new system was invented,
eliminating the some of the problems. It is
used in Dutch: German invented by JORGEN
BREUNING. He locks ellipsoids between the
top and bottom reinforcement meshes,
thereby creating a natural cell structure,
acting like a solid slab.
The slab is created with the same
capabilities as a solid slab, but with
considerably less weight due to the
elimination of excessive concrete.