Prefabricated Panels for Factory Building Roofs

Prefabricated panels for factory building roofs typically use types such as reinforced concrete hollow slabs, which can be used for the floors and roofs of factory buildings and residential houses.

Types and Manufacturing Process

The core type of prefabricated panels for factory building roofs is the reinforced concrete hollow slab. Its structure reduces self-weight through a hollow design while ensuring load-bearing capacity. During manufacturing, a hollow mold is first made using wooden planks. Inside the mold, a steel reinforcement framework is arranged to enhance structural strength. Then, the hollow part is filled with cement. After the cement has completely dried and hardened, the external wooden formwork is knocked off, ultimately forming the prefabricated panel. This process balances production efficiency with structural stability, making it suitable for large-scale industrial production.

Performance Parameters

The mechanical properties of prefabricated panels are reflected by two key indicators: compressive strength and flexural strength:

• Compressive Strength: There are various specifications, ranging from 0.24 MPa to 120 MPa. Low-strength panels (e.g., 0.24 MPa) may be used for non-load-bearing structures, while high-strength panels (e.g., 120 MPa) are suitable for heavy-load factory buildings or special engineering requirements.
• Flexural Strength: Common specifications range from 0.3 MPa to 9.644 MPa, reflecting the panel's ability to resist bending deformation. The higher the flexural strength, the stronger the panel's stability over large spans, making it suitable for large-span factory building roofs.

Pricing and Market Conditions

The price of prefabricated panels is significantly influenced by specifications, merchants, and regions:

• The reinforced concrete hollow slabs from Jinan Taoqi Building Materials Co., Ltd. are priced at 24.0 yuan per meter (with monthly sales of 20 meters), suitable for ordinary factory buildings or residential houses.
• The cement floor slabs from Zhuozhou Penglei Trading Co., Ltd. are priced at 40.0 yuan per meter, targeted at industrial factory buildings or residential constructions. The higher price may be due to differences in material composition or manufacturing processes.

Application Scenarios

Reinforced concrete hollow slabs are widely used due to their light weight and ease of construction:

• Industrial Factory Buildings: Large-span roofs require lightweight and high-strength materials. Hollow slabs can reduce structural self-weight and lower foundation costs.
• Civil Buildings: In floor or roof structures, prefabricated panels can shorten construction periods and improve construction efficiency.

Precautions

When selecting prefabricated panels, it is essential to consider design loads, span requirements, and budget comprehensively. Additionally, verify the merchant's qualifications and product testing reports to ensure compliance with building safety regulations.