Rectification and correction of intensive warehouse planarity flooring
We are in a well-known firm in the province of Bologna that produces spare and special parts for mopeds and scooters here.
The problem encountered by the firm in question was that, after laying new concrete flooring in the intensive warehouse with narrow aisles equipped with three-sided forklift trucks, the floor did not present the level difference tolerances required by the forklift truck builder.
The flooring generally laid in warehouses is concrete with an industrial dry-shake quartz finish, meeting standard UNI 11146 p. 6.1 in terms of planarity. These standards state that the flooring must have a ±5 mm level difference tolerance, measured with a 2 m long rule laid in any direction.
The limits of acceptance of flatness are defined in the following table:
Tolerances on flatness *)
|Distance between the control points||1m||2m||
|Tolerance||+/- 4mm||+/- 5mm||+/- 6mm|
*) Deviation of concavity or convexity relative to the nominal plane determined by the ruler used for the measurement
The level difference tolerances are more restrictive in warehouses with narrow aisles and must meet the forklift truck builders’ requirements by applying the DIN 15185-18202 standards. Insufficient floor uniformity and planarity prevents the majority of forklift trucks for narrow aisles from exploiting their handling performance potential to the full. Strong in our experience in this sphere as well, we consequently levelled the existing flooring, after the usual inspections, laying “controlled planarity” EPOXIBETON spatula-effect resin slab on the transit aisles.