oa Civil Engineering = Siviele Ingenieurswese - Fly ash used in the construction of the world's tallest building : environmental

Volume 18, Issue 7
  • ISSN : 1021-2000



The decision to use fly ash in the raft foundation of the world's tallest building, the Burj Khalifa Tower in Dubai, was based on technical criteria. The aggressive weather conditions in the Dubai region, with Persian Gulf temperatures of up to 50°C, required the concrete to be able to resist the thousands of tons bearing down on it, be as impermeable as possible, and resist chloride and sulphate attack. The presence of fly ash in the concrete mix would also limit peak temperatures of mass concrete pours, thus reducing the potential for cracking.

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