Tile abrasion classes and slip resistance

Tile abrasion classes and slip resistance: slip

Another important aspect in the selection of tiles are the abrasion classes or groups, also called stress groups. While there are practically no application restrictions for unglazed stoneware floor tiles, glazed tiles and panels are subdivided into stress groups (DIN EN 154).

Regardless of the quality of a glaze hangs the wear resistance essentially on the frequency of the visit and the degree and nature of the pollution. Shoe wipers, mats and the like make it possible to strip off dirt and wear agents and keep them away from the floor covering.

Such a dirt lock It must be specially designed for rooms that are directly accessible from the street or garden.

Slip resistance in the commercial sector

grouptilt anglemeaning
R 96° - 10°low static friction coefficient
R1011° - 19°normal static friction coefficient
R1120° - 27°increased friction coefficient
R1228° - 35°high static friction coefficient
R13over 35°very high friction coefficient

For the test of slip resistance a little oil is applied to the anti-slip tiles to be tested and a test person stands and runs over the inclined surface. The angle of inclination indicates up to which incline this is possible without problems.

Slip resistance in the wet and barefoot area

grouptilt angleapplication
Aover 12°Barefoot areas where it is mostly dry. These include changing rooms and other dry areas in swimming pools.
Bover 18This rating group is for wet areas, such as showers and tiled floors around swimming pools.
Cover 24°Surfaces and stairs that lead directly into the water are subject to special slip resistance and must comply with Group C standards.

The test is similar to that in the commercial sector. The test person stands and walks barefoot and as a lubricant, soft soap is used.

The abrasion groups at a glance

In some Application areas in which spatially different stress the soils and thus in some places a particularly large attendance frequency is expected, such. For example, in front of cash registers and behind entrances in shops, ticket halls, restaurants, showrooms, cinemas, museums and the like, it may be necessary to select for these special places tiles that can withstand a greater load. In certain cases, such as outdoor coverings, staircases and pool entrances in swimming pools, where slip resistance plays a role, the specific provisions mentioned apply.

In brackets the number of revolutions used in the processing of the tile in the test are indicated.

Abrasion group 1 (up to 150)

Glazed ceramic floor coverings with light use, which are committed at low Begehungsfrequenz without the presence of particularly scratchy dirt with soft soled footwear or barefoot, such. B. bathrooms or bedrooms in apartments without direct access from the outside, otherwise processing only in the wall area.

Abrasion Group 2 (300 to 600)

Glazed ceramic floor coverings with medium stress, which are burdened with low footfall under low scratching pollution with normal footwear, such. As the general living area, such as living and dining room except kitchens, floorboards and other frequently committed rooms.

Attrition Group 3 (750 to 1,500)

Glazed ceramic floor coverings with medium stress, which are loaded with normal footwear at medium speed under low scratching pollution, such. For example, the entire living area with kitchens, hallways, hallways, balconies, loggias, but also hotel rooms and hotel bathrooms or sanitary and therapy rooms in hospitals.

Abrasion group 4 (from 1,500)

Glazed ceramic floor coverings high stress, which are used more intensively at normal footfall with normal footwear and in relation to the pollution and load frequency, such. House and apartment entrances, sales and service areas, offices, etc.

Abrasion group 5 (from 12,000)

Glazed ceramic floor coverings with highest stress, which are exposed to a high Begehungsfrequenz, such. As business premises, restaurants, counters and switch areas, garages, industrial laboratories, etc. This abrasion group is currently not integrated into the DIN standard.

But that's not all: There are then extreme stresses, such as floors in rooms with strong public traffic and in supermarkets, hotels, schools, administrative buildings, hospitals, passages, etc. Some tile manufacturers recommend for this purpose the use of unglazed stoneware or brick tiles and split tiles, which in a variety of Colors and formats are available.

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Video Board: ISO 13287 - Slip resistance test