Aug
19
2015
3
Slip resistance on dry and wet surfaces
The degree of surface sliding is determined by the kinetic and dynamic conditions of motion of the body interacting with the surface.
Requirements for the quality of ceramic tiles and control methods are established by technical specification standards. All technical characteristics are established by state, European or international standards and are divided into several groups:
GEOMETRICAL AND SPECIAL: dimensions and appearance ; tsek (hairline cracks in the glaze) .
PHYSICAL: water absorption ; frost resistance ; thermal resistance ; thermal conductivity
MECHANICAL: bending strength ; surface hardness (Mohs) ; wear and deep destruction ; coefficient of linear thermal and humidity expansion ; impact resistance .
CHEMICAL: fire resistance ; stain resistance ; color and light fastness .
SAFETY: Slip resistance ; lead and cadmium content in glaze .
When carrying out ceramic work, it is necessary to know the technical characteristics of the tile for its correct use.
The degree of surface sliding is determined by the kinetic and dynamic conditions of motion of the body interacting with the surface.
Linear thermal expansion is expressed by the dimensional changes of any material due to changes in temperature. Moisture expansion refers to the expansion of the tile due to the absorption of moisture.
Ceramic tile is a blocky, repeating element of a wall or floor surface. The quality and value of the cladding directly depend on the symmetry and uniformity of its individual components, i.e. individual tiles in relation to the quality of the surface and its dimensions.
Abrasion resistance is a mechanical characteristic of a lined surface. Indicates the surface’s resistance to wear due to exposure to rubbing objects, surfaces, and materials.
Frost resistance is the ability of ceramic tiles to withstand freezing in a humid environment and at temperatures below 0 degrees Celsius. The freezing mechanism is divided into two stages.
Water absorption is a parameter that measures the porosity of ceramic tiles. A high water absorption coefficient indicates that the structure of the tile is porous, and a low coefficient indicates that the structure of the material is more dense.
Flexural strength is an important characteristic for each material. In this case, the resistance of the material is measured in relation to the maximum specific load, with constantly increasing pressure on the surface. Flexural strength is measured in Newtons per square millimeter (N/mm 2).
Stain resistance of ceramic tiles refers to their ability to withstand aggressive chemical agents.
Fire behavior is one of the most important characteristics of all building materials. Ceramic tiles help prevent fires; it is a completely non-flammable material and therefore retards the spread of fire.
Ceramic floor and wall tiles, like most ceramic products, are characterized by a high degree of electrical resistance with a correspondingly low degree of electrical conductivity.