Signature Look with the White Precast Concrete Façade
To achieve a bright white surface for the façade, a unique recipe was developed. Aalborg White Portland cement, Titanium Dioxide (TiO2) pigment, and white silica fume were used as additives. High purity and chemical stability of the white cement plays a paramount importance for producing high-quality façade surface. When mixed with pigment and additives, it ensures consistent concrete properties and appearance. TiO2 is a highly refractive and UV-resistant material that significantly increases the brightness of the concrete. White silica fume improves both the fresh and hardened states of the concrete. In the fresh state, the ultrafine and spherical particles of silica fume increase the concrete paste volume, making it more stable and flowable. In the hardened state, silica fume acts as an effective pozzolanic material that reacts with the free calcium hydroxide in the concrete. Silica fume reduces permeability, increases durability, and allows for lower cement content while maintaining concrete strength.
The façade was designed using a Design for Manufacturing and Assembly (DfMA) approach, which ensured that only three types of modules were used. These modules consisted of flat vertical and horizontal grids, one window, exterior sills, and a recessed ribbed pattern that is 125mm deep.
The building's overall visual character is enhanced by the interplay of light and shadow. The white façade stands out in contrast to the green facades on upper floors, creating a striking effect.