What type of masonry is most susceptible to thermal shock?

Refractory masonry is specifically designed to withstand high temperatures, but it is also particularly susceptible to thermal shock due to its composition. Thermal shock occurs when there is a rapid change in temperature, which can cause the material to expand or contract unevenly, leading to cracks or structural failure. Refractory materials, while made to endure extreme heat, often have different thermal expansion coefficients compared to other construction materials, making them more vulnerable to this phenomenon.

In contrast, brick, stone, and concrete have a greater capacity to handle fluctuations in temperature without experiencing significant damage. Their properties allow them to distribute heat more evenly, reducing the risk of thermal shock. Understanding the limitations and characteristics of different masonry types is crucial for effective fire safety and prevention strategies in structural applications.