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Extruded polystyrene (XPS) as a high-efficiency insulation material has an extremely wide range of applications, covering underfloor heating, refrigerated trucks, building roof and wall insulation, central air conditioning ventilation ducts, airport runway insulation layers, and many other fields, all showing excellent insulation effects. In these applications, the compressive strength of extruded polystyrene boards becomes a crucial performance indicator.
Compressive strength, also known as compression strength, measures the maximum load an extruded polystyrene board can withstand per unit of its original cross-sectional area when subjected to a vertical force. This indicator is directly related to the stability and durability of extruded polystyrene boards in practical applications. Depending on the production equipment and process, the compressive strength of extruded polystyrene boards can range from 150kpa to 800kpa and above, with high-strength extruded polystyrene boards laid under high-speed railways reaching a compressive strength of 700kpa.
The compressive strength of extruded polystyrene thermal insulation board is closely related to their density; the higher the density, the greater the compressive strength. When selecting extruded polystyrene boards, it is necessary to determine the required compressive strength based on the specific application scenario. For example, for roof, interior, and exterior wall insulation, and foundation treatment, extruded polystyrene boards with a compressive strength of around 250kpa can be chosen. In contrast, for pavements, load-bearing roofs, parking lots, and airport runways, which need to withstand greater pressure, extruded polystyrene boards with higher compressive strength are needed.
Additionally, the compressive strength of the XPS thermal insulation board is also affected by their aging time. Over time, the compressive strength of aged extruded polystyrene boards increases and stabilizes. Therefore, when selecting extruded polystyrene boards, besides considering their compressive strength and density, it is also essential to pay attention to their production process and aging time.
In conclusion, the compressive strength of extruded polystyrene boards is one of the key indicators of their performance quality, which is significant for ensuring their stability and durability in various application scenarios.
