MOR Tile

What Is MOR In Tile?

MOR, also known as Modulus of Rupture, is the measure of a tile's capability to resist fracture when it experiences bending stress. MOR stands for the flexural strength measurement of a tile, denoting how much force a tile can take before it cracks or breaks. It is a key indicator of tile bending strength and allows checking how a tile will perform in real-world scenarios such as impact and foot traffic on floor tiles. MOR is a reliable measure for comparing the flexural strength of different tiles.

Unlike compressive strength, MOR measures how a tile behaves when force is put across its surface, especially when stress is only put in the middle while the ends of the tile are secured. Major characteristics of MOR include:

• It indicates the resistance to cracking or structural failure when subjected to flexural loads.
• It is the representation of the breaking force measurement under bending conditions.
• It contributes to the overall tile durability rating, particularly for applications where tiles are subjected to bending loads.
• It assesses the tile's load-bearing capacity in practical usage.
• Because tiles are often exposed to uneven loads, MOR provides a realistic measure of performance.

MOR Tests and More

MOR is determined with the help of standardized mechanical strength testings. In standard tests, a tile is supported on both the edges while pressure is applied to the central region until it breaks.

• The test measures the force that is necessary to cause failure.
• It is conducted under the ANSI/ISO testing standards.
• The results of the test are presented in units like N/mm² (or MPa).
• The test ensures that all the different types of tiles are compared using consistent methodology.
• This controlled method simulates bending stresses tiles may encounter during installation and use.

Typical MOR Values

MOR values change from tile to tile depending on its type and quality. While exact values differ by manufacturer, general benchmarks help in understanding performance levels.

Higher MOR values generally indicate stronger tiles with better resistance to bending and breakage. For walls or decorative applications, MOR is less critical, but for floors, it is a key selection factor.