The first floor and mezzanine floor slabs involved the pre-setting of 5,000m² of 1-layer of steel fabric reinforcing mesh and tied joints. Concrete, arriving from from Hanson’s local Ely batching plant at a rate of 130m³ per day, was pumped onto the first floor and mezzanine areas over five consecutive days and given a powerfloated surface finish.
Once the upper levels were completed, Level Best went about the construction of the 200mm deep 5,000m² ground floor slab. Due to the complex anti-crack floor slab design, Level Best had to pre-set all the A252 reinforcing mesh, anti-crack column encasements and stainless steel joint. The concrete floor laying team then proceeded to pump and lay 250m³ of ready-mixed concrete per day to ensure the contractor’s programme was met. Due to the large pours and long days, Level Best had three separate powerfloat finishing teams operating simultaneously to ensure a high-quality finish was achieved.
The Principle Contractor’s Contracts Manager commented that the finished ground floor slabs “were the best powerfloated concrete floor slabs I have seen in my 30+ years in the industry.” Which left Level Best extremely satisfied given the complexity and difficulty of the pre-set, pump and hand-lay casting methods required for this facility.