Concrete Placement

• Steel fibre is added at the batch plant
 
• Concrete is poured on site directly from the truck chute and does not need to be pumped
 
• Wheel ruts and other depressions in the sub-base must be removed prior to placing concrete. The ruts and depressions form "anchors" for the slab as it shrinks.
 
• A plastic membrane is placed immediately prior to concrete. The membrane assists with curing the concrete and reduces frictions between the concrete and the sub-base.

	Insitu concrete is levelled using a vibrating Laser screed Note the form-board (orange) indicating the edge of the slab. Pour sizes are typically 30 m x 30 m or larger. The pour size ratio should not exceed 1:1.5.
	Wheel ruts and other depressions are raked and a plastic membrane is placed on the sub-base just prior to placing the next batch of concrete.
	Concrete is placed directly from the chute of the truck onto the prepared sub-base. This has the advantage of avoiding pumping equipment for the concrete and elevated trellises for equipment such as the Laser screed.
	Set-downs for loading docks and other features in the pavement can be readily detailed in steel fibre reinforced slabs
	Heavy duty finishing equipment is required Note that timing is critical. If the blades work the slab surface too early then fibres will be drawn to the surface making the slab almost unusable. If the blades work the slab too late then a thin layer of fines will not be worked to the surface.
	Finished distribution centre

Projects