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Diab Wins Contract to Supply Core Materials for the Dokkae Tower in Mecca

  • Tuesday, 13th January 2009
  • Reading time: about 2 minutes

Diab has been awarded a contract to supply the core materials for the 35,000 square metres of composite cladding that will be used on the final 200 metres of the Dokkae Tower, Saudi Arabia.

The tower will also feature the world’s largest clock. Two of the four faces of the clock will measure 43 metres in diameter.

The sandwich composite cladding will comprise carbon/glass/epoxy skins over a Divinycell P core. This will be then be covered in Italian mosaic tiles of which 13,000 square metres will be gold tiles.

In addition the clock faces will also be built using sandwich composites based on Divinycell P thermoplastic core. More than 600,000 LED’s will be integrated into the sandwich laminates in order to light up the clock faces at night. Carbon/epoxy composites are also being used to construct the hands of the clock. Each of the hands, which measure up to 23 metres in length, will also be lit with LEDs.

Over 8,000 square metres of Premier Composite Technologies recently expanded production facilities in Dubai, U.A.E., has been dedicated to the production of the cladding. There will be 250 people involved in the production and tiling of Dokkae Tower when it is fully up and running.

Divinycell P thermoplastic core was chosen by Premier Composite Technologies as a result of its combination of properties that were able to meet the structural, environmental and fire requirements of the application.

Although suitable for a wide range of uses, Divinycell P is designed for sandwich composite applications in the construction market where FST (fire, smoke and toxicity) properties are often a specific requirement. Divinycell P is rated M1/F1 according to the NF F 16-101 standard and complies with DIN 5510 S4 ST2 SR2. It is available in three densities – 60, 100, 120 and 150 kg/cub. metres and can be supplied in a variety of finishes (including kits) to facilitate and speed processing.

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