An industrial screed is adapted to the type of load

An industrial screed is designed for very high physical and chemical loads. The usual materials used are cement containers, mastic asphalt and synthetic reaction resins. The high strength requirements must also be able to withstand permanent road traffic wear and wear.

Load classes are decisive

Floor coverings must have adequate strength classes for the appropriate application. For industrial screed, the values ​​for compressive strength and flexural strength are defined. Before laying these load values ​​must be checked and classified as suitable.

The unit of measurement is expressed in Newtons per square. For floor screeds used in the commercial sector, compressive strength classes from CT 40 upwards are eligible. The appropriate bending tensile classes begin with F6. In addition, in some applications, for example in the food industry, a wear resistance rating for cement packs and mortar use is needed.

The compressive strength classes correspond to the maximum force in Newtons, which can act on one square millimeter (N / mm²). CT 40 is limited to 40 N / mm², the highest possible compressive strength class is CT 80 with 80 N / mm². The same principle applies to bending tensile strength, which is denoted by F. For F 6, a maximum of 6 N / mm² "pulling" force must act on the industrial screed, as occurs, for example, when driving on a forklift truck.

Additional subordinate classifications may play a role in some special uses. These include the surface hardness class, the resistance to roll demand, bending elasticity bending class and the adhesive tensile strength class.

Chemical stress types

In the private sector, in most cases industrial floors are made of concrete whose screed construction is in the compressive strength classes CT 20 to CT 40. These industrial screeds are used in garages, smaller workshops without chemical or heavy rolling load. In many cases, an industrial floor made of PVC can be sufficient here as an alternative, especially if humidity and wetness are more important.

When exposed to chemical stress, industrial flooring has a special role to play in industrial floor coating. Special sealants, for example, withstand solvents such as those created when working with paints and varnishes.

Determination of slip resistance

In some applications, the skid resistance of the industrial screed plays a major role. For fat processing companies, the professional association also stipulates minimum requirements for slip resistance. Basically, the slip resistance or slip resistance is determined by angle measurements after a lubricating oil application. A test screed is done with standardized work shoes in ever-increasing inclination angles. When the subject begins to slip, the upper limit is reached.

The slip resistance values ​​range from R9 with the associated angle of six to ten degrees to the highest class R13 with angles from 35 degrees. By the same principle in coarser subdivision industrial screeds and paints are classified, which are to be accomplished barefoot. The three slip resistance values ​​A, B and C are assigned the minimum angles 12, 18 and 24 degrees.

Tips & Tricks

The structure of your industrial screed can be applied in any type used even with ordinary screed, with or without a separating layer, floating or painted in combination with the substrate.