What is the porosity of high alumina bricks? The apparent porosity of high alumina bricks is also known as the open porosity. The percentage of the volume of open pores in refractory products to the total volume of the product. Unless otherwise specified, the porosity referred to in the Chinese refractory material industry usually refers to the apparent porosity.
Visible porosity is an important indicator for evaluating the quality of refractory materials or products, which not only reflects the density of refractory materials, but also characterizes the rationality of their manufacturing process. In addition to lightweight refractory products, low porosity raw materials or products are beneficial for improving product quality, enhancing mechanical strength, reducing surface area in contact with slag, and prolonging service life.
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