Super Flat Flooring

A specialized tolerance technique known as the “F-min” (F minimum) tolerance system is used to build super-flat floors to significantly tighter tolerances than traditional floor slabs. A lift truck’s floor surface’s maximum variation is defined, and this is the foundation of the F-min system. Reliability of the lift truck operation is maximized by optimizing the floor surface. Using these specialty lift trucks on regular terrain might lead to picking issues (such as rack impact) and higher maintenance expenses. FOUNTECH stands as Bangladesh’s top Super flat floor contractor.

The control of highly accurate transverse and longitudinal tolerances is achieved through pouring the concrete in narrow strips using specialized formwork, materials and methods of construction. As exhibited below, these floor profile graphs indicate the differences over a 25′ length between a good quality random traffic floor surface (FF30/FL20) and a Super Flat floor (approx. Fmin80).

A reasonably smooth random traffic floor tolerance is found on the FF30/FL20 floor (on the left). This floor profile, FF117/FL110, shows what a Super Flat floor typically looks like: it is level and flat. Unlike the FF/FL tolerance method, the unique “Fmin” approach of tolerance definition and measurement mandates that any faults above the maximum permissible variation be remedied by grinding.

The table below gives a general idea of the F-min tolerance requirements for any floor based on the maximum rate of change per foot of movement in the longitudinal direction for a lift truck, even if the tolerance definition for each specific environment is relatively complex. Remember that you should get information from the manufacturer of your lift truck.

When specifying and creating Super flat flooring, we highly advise building owners and their representatives to do the following:

Pouring in a strip is required. Strip pour procedures are required for construction approaches in narrow aisle high-rack automated guided vehicle (AGV) environments due to the difficulties of obtaining these extremely strict longitudinal and transverse tolerances.

Very flat flooring DO NOT have transverse saw cuts. A extremely flat floor might quickly become unworkable due to tolerance losses brought on by drying shrinkage curling at transverse contraction joints. Thus, transverse cracking (which astonishingly maintains flat) is predicted. In addition to reinforcing for applied loads, the designer should also consider these longitudinal shrinkage stresses.

If longitudinal drying shrinkage stresses are not controlled, they can result in large cracks. It is preferable to limit the width of cracks in order to prevent equipment damage, lower the cost of crack repairs, and lower the cost of any subsequent maintenance.