2010年7月28日星期三

Floor screeds

  1. The purpose of a floor screed is to provide a smooth level surface on which a floor finish can be applied
  2. usual materials for a floor screed are cement , sand (1,3) and water which are thorougly mixed , spread over the surface of the concrete bed , compacted levelled and trowelled to a smooth finish wth a wood or steel float.
  3. A wood float dinish is used for wood block and thick tile floors and a steel float finish is used for the thin sheet and tile floor finishes
  4. Screeds should be mixed with just sufficient water for workability
  5. Screeds should be cured , that is allowed to dry out slowly over several days , by covering it with polythene sheeting , to minimise rapid drying shringkage and cracking

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