The compressive strength of high alumina bricks at room temperature refers to the ultimate load that the refractory product sample can withstand without being damaged per unit area at room temperature. The normal temperature compressive strength of high alumina bricks has a great influence on the production, transportation and use performance of the product, and in most cases, it also directly affects the service life. Therefore, we hope that the product can achieve higher compressive strength value.
The high-temperature compressive strength of refractory high-alumina bricks refers to the ultimate load that the high-alumina bricks can withstand without being destroyed per unit area of a cube sample of a specified size under specified high temperature conditions. The high-temperature compressive strength of high-alumina bricks determines the application range of the product, and it is one of the important basis for the selection of high-alumina bricks.
For unburned refractory products and amorphous high alumina bricks, due to the addition of a certain amount of binders or additives to the material, the bonding method and strength at room temperature will change with the increase of temperature, so its high temperature Compressive strength has a more important meaning. The compressive strength measured at room temperature is the normal temperature compressive strength of the material.
The sample is heated to a specified temperature at a specified rate, and the compressive strength measured after holding it for a certain period of time is the high-temperature compressive strength at that temperature.
