Screeding can refer to the action of levelling concrete on a flat surface such as a building floor or screeding can actually refer to the levelled cement itself that has been laid on the floor. Although cement and screed are made of a similar composition (cement, aggregates and water), cement has a more durable constitution because it contains aggregates and small stones whereas screed contains very small material and it is because of this difference in material composition that concrete is used to form the base layer of a floor while the screed layer forms the relatively thin top layer of a building floor.
Screed is poured on top of the underlying insulation and concrete layer using a screed pump machine and then builders ensure that the screed laid on to the floor is flat and level. Once the screed layer has dried, other materials like carpets, tiles or floorboards can be placed on top of the screed
[su_row][su_column size=”1/3″ center=”no” class=””]Fig. 1 – screed and floor layers [/su_column] [su_column size=”1/3″ center=”no” class=””]Fig. 2 – screed pump [/su_column] [su_column size=”1/3″ center=”no” class=””]Fig. 3 – builder levelling a layer of screed [/su_column][/su_row]