The thermal insulation performance of EPS cement sandwich panels is mainly reflected in the following aspects:
- Improve residential comfort and thermal insulation effect: By increasing the thickness of the EPS insulation layer, the thermal insulation effect of the building can be significantly improved, thereby enhancing residential comfort. When the thickness of the EPS insulation layer is increased to 100mm or 150mm, the heat transfer coefficient of the exterior wall can meet the specification requirements, effectively reducing the overall building cost and daily operating expenses.
- Meet the latest national requirements for building energy conservation: The EPS insulation material sandwich panel system not only meets the structural safety requirements of rural low-rise residential buildings, but also complies with national industrial policies and the latest requirements for national building energy conservation, reflecting its advantages in energy conservation.
- Good thermal properties: EPS materials have excellent thermal properties and can effectively reduce energy dissipation, which is particularly important for improving the thermal insulation performance of building envelopes. In addition, EPS particles, as ultra-light aggregates of cement-based composite insulation materials, have a significant impact on the mechanical properties and thermal properties of cement-based composite insulation materials. Appropriate dosage of EPS particles can significantly improve the compressive strength and tensile strength of the material. , while ensuring good thermal performance.
- Seismic performance: The seismic performance of the EPS sandwich wall was studied by conducting in-plane finite element numerical tests on the EPS sandwich wall model. The results show that EPS sandwich walls with different densities and insulation layer thicknesses show certain differences in seismic performance, but in general, EPS sandwich walls have good seismic performance, which provides a theoretical basis for its application in actual projects.
- Interface bonding performance: In sandwich structure walls using EPS boards as the insulation layer, the interface bonding performance is an important prerequisite for determining whether they can give full play to the advantages of their respective materials and meet the use requirements. Research shows that the addition of connectors can help improve the load-bearing capacity and interface bonding performance of the specimens, among which the specimens embedded with 45° connectors have the most obvious enhancement effect.
The thermal insulation performance of EPS cement sandwich panels is mainly reflected in improving residential comfort and insulation effects, meeting national building energy conservation requirements, and having good thermal performance, seismic performance, and good interface bonding performance. These properties make EPS cement sandwich panels an efficient, economical and environmentally friendly building material choice.