Prefabricated House Foam Board
Prefabricated house foam board is a composite building material that combines prestressed technology with foam core material, featuring enhanced structural strength, thermal insulation, and lightweight properties.
Manufacturing Process and Structural Characteristics
The production of prefabricated house foam boards employs the pre-tensioning method: First, steel bars are tensioned to the designed strength to form prestress, followed by concrete pouring. After the cement solidifies, the steel bars retract, compressing the concrete and significantly improving its tensile strength. During manufacturing, workers first lay a layer of cement, then place and secure large foam boards (such as polystyrene foam or extruded boards), and finally pour concrete to cover them. Vibrating rods are used to remove air bubbles, preventing concrete cracking, followed by high-temperature steam curing or natural curing to ensure stable material properties. This process combines the compressive strength of concrete with the lightweight nature of foam, while the prestressed structure enhances overall bending resistance.
Material Classification and Performance Parameters
The core materials of prefabricated house foam boards mainly include polystyrene foam and extruded boards. The former has lower costs but higher water absorption, while the latter has greater density and superior thermal insulation. The shapes are primarily rectangular, facilitating standardized construction. Bending strength is a key performance indicator, with common specifications including 15MPa and 70MPa. High-strength models are suitable for load-bearing structures, while low-strength models are often used for partition walls or non-load-bearing parts. Additionally, some products, such as lightweight cement foamed partition boards, further reduce weight through foaming processes and feature fire resistance, water resistance, sound absorption, and moisture resistance, making them suitable for commercial space partitions or indoor and outdoor partitions.
Brands and Price References
Mainstream brands in the market include Huapin Thermal Insulation and Qiyuan Energy Conservation, with product performance varying slightly due to manufacturer processes. Taking lightweight cement foamed partition boards as an example, the product from Langfang Taoxiu Thermal Insulation Materials Co., Ltd. is priced at 39.9 yuan per square meter (specific specifications require consultation with the manufacturer), with prices influenced by material thickness, core material type, and transportation costs. Consumers can choose appropriate brands based on project requirements, such as prioritizing extruded board core products for fire-resistant scenarios.
Application Scenarios and Advantages
Prefabricated house foam boards are widely used in the walls, floors, and roofing systems of low-rise residences, temporary buildings, and industrial plants. Their core advantages include:
- Lightweight and High Strength: Foam core reduces self-weight, while prestressed structures enhance load-bearing capacity;
- Thermal Insulation: The foam layer effectively reduces heat conduction, lowering energy consumption;
- Convenient Construction: Standardized production shortens construction periods and reduces on-site wet work.
Note that prolonged exposure to UV light or humid environments may affect foam performance, so an outer layer of waterproof coating or protective layer should be used.
