Ready-mixed concrete for Dubai Creek Harbour towers

The foundation problem

Creek-side ground means a shallow water table with chlorides and sulphates. Bored piles are the usual foundation for towers here, capped by a raft. Both stay wet for good. The piling mix has to self-compact around a dense cage under water, and the substructure mix for the raft and basement walls has to keep chlorides away from the steel for decades. GGBS blends and a low water/cement ratio do most of that work, with the cover and exposure class set by the consultant.

Large rafts bring heat of hydration into play. GGBS also lowers the temperature peak inside a thick pour, which helps limit thermal cracking between the core and the surface.

From raft to roof

Once out of the ground, cores, columns and post-tensioned or flat slabs take a superstructure mix. For a typical floor plate of 300 m³, plan for 25 truckloads. As the tower rises past what a 57 m boom can reach, placement switches to a placing boom fed by a static line, and the mix is designed for pumping pressure at that height.

Waterfront towers also have podium decks and promenades facing the creek. Those external slabs see wetting, drying and salt, so the consultant may treat them closer to a substructure exposure than to an internal floor.

Distance and sanctuary rules

This is one of the longer runs from Al Quoz: about 14 km in a straight line, usually by Al Khail Road and Ras Al Khor Road. Peak traffic stretches that, so the retarder is set for a longer drum time and slump is targeted for arrival, not for the plant. The developer controls access and working arrangements in the community, and the sanctuary next door may add conditions. Check with the developer before planning night pours, which summer temperature limits often make necessary.