Scaling reinforced-concrete delivery on a hyperscale data centre

The Frankfurt programme has been the proving ground for how AAC delivers reinforced concrete at hyperscale data-centre pace. From pile caps and ground beams through to the first lifts of substation slabs and retaining walls, the works have been sequenced around a programme that doesn't tolerate slip.

Self-delivery is the difference

Reinforced concrete is one of the few packages on a data-centre programme where you cannot subcontract the risk away. The kit, the steel-fix crews, the pour windows and the cube results all sit inside one team — and that team has to own the result.

We deliver the structural concrete works ourselves. Our supervisors run the pour, our engineers sign the rebar, our quality team takes the cubes. When a client asks who is accountable for a 1,200m³ pour going down clean overnight, the answer is one name.

On a hyperscale data centre, the schedule is the programme. Reinforced concrete sets the cadence — everything M&E and fit-out depends on hitting the slab dates.Site Engineering team — Frankfurt

What we learned scaling up

Three lessons stand out from the first phase:

• Plan the pour like a logistics exercise. Truck cycle times, pump positioning and cube schedules need to be locked a week in advance — not the morning of.
• Steel-fix is the bottleneck, not the pour. We doubled our steel-fix crews before we doubled the pour rate. Rebar productivity is the real constraint.
• QA in real time. Cube results, slump tests and rebar inspections feed straight into the daily report. No surprises at handover.

What's next

The Frankfurt and Dietzenbach programmes continue through the rest of the year. The team is now sized for two simultaneous pour fronts on each site, and we expect to deliver a further 18,000m³ of structural concrete before Christmas.

Interested in how we'd approach your programme? Get in touch.