Building with pre-cast concrete

Vantagecorp Services

Pre-cast concrete construction is widely recognised as an environmentally friendly and cost effective construction method and as such pre-cast concrete tilt panels are fast becoming the most popular form of commercial construction.

The walls of the building, are cast on site, either on the floor slab or on a cast bed specifically poured for this purpose. Form-work is custom made for each tilt panel. The form-work is made to suit the size and shape and to allow for any windows or doors in the panel. Steel and reinforcing bars are added. The form-work acts as a mould into which the concrete is poured.

Once this concrete has hardened, a bond breaker is applied so another tilt panel can be poured on top. This creates a ‘stack’ of tilt panels. Concrete walls have now been formed, albeit lying on the ground. Once the form-work is removed these panels are lifted into place using a crane. Braces are added to tilt panels and as the crane lifts the panels using these braces, workers help to guide the concrete panels into position. When in the required spot the crane will set the panel in place. These walls will be temporarily supported by ‘props’.

The speed of this process is remarkable. Once the tilt panels have been ‘stood’ using the crane, the building’s structure is complete. This can happen in a day. The tilt panel walls are patched to finish any imperfections there may be and the joints between the panels are sealed to make the building water tight.