Expansion joints are primarily used in various types of buildings to prevent deformation or cracking due to structural differences between buildings or other factors. Whether it's an expansion joint or a settlement joint, they both fall under the category of deformation joints. However, there are distinctions between the two in practical applications. Let's take a simple look at them!
Expansion joints, also known as temperature joints, primarily prevent building deformation caused by temperature differences during use. Since the base layer is less affected by temperature, it does not need to be severed. They are commonly used in roofs and other widespread applications.
The settlement joint is primarily a type of deformation joint used to address uneven settlement caused by differences in foundation capacity. During use, these buildings are divided into different grades, yet it does not affect the overall structure. Additionally, during use, the settlement joint can sometimes also serve the same purpose as a expansion joint.