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  BU498 Preparation for concrete floor slabs

BU498.jpgCareful preparation of the building platform and excavation are required to construct the basis of a good quality floor slab, and specific requirements apply to the laying and compaction of hardfill under the slab.

This bulletin describes the steps required to construct a sound base and covers:

  • Building Code requirements
  • site investigation, including levels, ground clearances and good ground
  • site preparation, including set-out and removal of top soil
  • excavation
  • formwork
  • hardfill
  • installing services
  • sand blinding
  • damp-proof membrane
  • insulation
  • reinforcing
  • embedded floor heating.

Publication date: June 2008 Keywords: building site, concrete, floor, foundations, ground clearance, heating, insulation