From pour to handover
VDF Flooring Process
A VDF floor is built in sequence. Skipping a step — or rushing curing — shows up later as dusting, weak surface mortar, or joint problems. This is how ASVDF Flooring typically executes vacuum dewatered flooring on industrial and warehouse sites.
1. Site and pour planning
Bay sizes, access, reinforcement, levels, and joint layout are agreed before concrete is ordered. The programme has to leave time for dewatering, trowelling, and curing, not only for the pump.
2. Placement and levelling
Concrete is placed and struck off to level. Screed work sets the flatness the vacuum mats will sit on. A slab that is out of level before dewatering will not be rescued by the vacuum step.
3. Vacuum dewatering
Filter pads and vacuum mats go onto the fresh surface and are connected to the vacuum dewatering unit. Surplus water is extracted so the top layer densifies. This is the vacuum densification step that defines VDF.
4. Power trowel finishing
After dewatering, power trowels close the surface to the specified finish — typically a dense, smooth industrial trowel finish suitable for warehousing or plant use. Floor hardener, if specified, is applied at the finishing stage.
5. Joints, curing, and handover
Saw-cut joints are timed to control cracking. Curing protects the slab while strength develops. Handover follows the curing window agreed with the client so early traffic does not mark a green floor. Most mid-size industrial floors complete in 1–3 weeks including those curing windows.