The month of July 2011 saw the largest flooring contract to date for Nationwide Concrete Flooring contractors which was constructed on behalf of main contractor Hobson & Porter Limited for flower giant J Z Flowers in North Cave near Hull.
The 11,500m2 warehouse concrete floor slab was laid in just 6 casting days using Nationwide Concrete Flooring’s Somero Laser Screed levelling machine. The initial levelling and compaction of the final 60mm of sub base was compacted using the laser guided sub base trimmer and installation of construction joints and column surround detail was carried out in advance of the floor slab casting.
Due to the vast volume of concrete required and distance from readymix plants Nationwide Concrete Flooring contractors decided to lay the high tolerance concrete floor slab throughout the night to guarantee continuity of service. Local independent readymix concrete supplier Edgar Readymix supplied the concrete utilising 14 number truckmixers.
The floor slab flatness requirement of FM2 special was specified by local engineer Alan Wood & Partners of Hull. Nationwide Concrete Flooring contractors had been involved in regular dialogue with Alan Wood regarding the finer detailing of the many floor slab interfaces required by the client such as wash down gulleys, manholes and mezzanine floor slab columns. Each detail was reviewed individually in terms of isolation, cost and potential shrinkage restraints within the floor slab. For further details on how we isolated the manholes and columns etc. please feel free to contact our design department.
As well as construction joints the floor slab had many thousands of metres of saw cut induced joint which were installed at centres to coincide with design requirements and long term shrinkage movement. As soon as the sawn joints were installed our Instant Seal 101 joint sealant was placed within the cut to help protect and seal the joint from heavy trafficking.
For further information on Nationwide’s comprehensive concrete flooring systems, call us today on 01430 436596 or email us at claire@nd-group.com or jon@nd-group.com. Alternatively, if you are located in the north east you can contact our dedicated north east office on 0191 404 6831.