Analysis of Key Steps and Technical Points in the Factory Prefabrication Stage of UHPC Curtain Wall Panel Production

In the field of modern architectural decoration, material performance and quality are the core factors determining a project's safety and aesthetics. As a new building material combining functionality and artistry, fire-resistant GRC decorative panels require strict control of technical indicators, which directly affects a building's safety level and service life. As an industry player with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group will analyze the technical core of fire-resistant GRC decorative panels from two aspects—core performance parameters and quality control systems—providing professional reference for designers and owners.

I. Analysis of Key Performance Parameters of Fire-Resistant GRC Decorative Panels

The technical advantages of fire-resistant GRC decorative panels are first reflected in the balance of their composite performance. As a subcategory of glass fiber reinforced concrete (GRC), their core parameters must meet the dual requirements of building fire protection and structural safety. In terms of fire performance, high-quality fire-resistant GRC decorative panels should meet the Class A non-combustibility standard specified in GB8624, with a fire resistance rating of 1-4 hours according to building design requirements—an indicator achieved by adjusting the glass fiber content (typically 4-6%) and the cement-based material mix ratio. Meanwhile, their physical and mechanical properties must meet flexural strength ≥12MPa and compressive strength ≥60MPa, ensuring resistance to wind loads and thermal deformation in high-rise building exterior wall applications.

Durability indicators are equally critical. The frost resistance of fire-resistant GRC decorative panels should pass 200 freeze-thaw cycles without obvious damage, and the impermeability grade should reach P6 or above to adapt to usage environments across different climate zones. Notably, through 28 years of engineering practice, Qinglong Group has found that autoclave curing can keep product moisture content below 8%, effectively avoiding later cracking risks. This process advantage has been verified in projects such as the Nanjing East Road Century Plaza renovation.

II. Construction Logic of a Full-Chain Quality Control System

The quality stability of fire-resistant GRC decorative panels relies on full-process control from raw materials to installation. On the material side, Qinglong Group has established a strict incoming inspection system: glass fiber must comply with the ASTM C1666 standard, and cement-based materials use 42.5R grade Portland cement with selected quartz sand to ensure stable substrate performance. The production process introduces BIM technology and automated molding equipment, achieving component dimensional accuracy within ±2mm—an accuracy level that is particularly critical in special-shaped projects such as the Dongguan Women and Children's Activity Center.

Installation techniques directly affect the safety performance of fire-resistant GRC decorative panels. Qinglong's self-developed "3D laser scanning + modular installation" technology achieves on-site positioning errors of ≤3mm; combined with stainless steel embedded parts and flexible connection joint designs, it effectively mitigates hazards caused by building settlement and thermal stress. In addition, every batch of products is embedded with RFID chips for full life-cycle traceability, and this quality control model has become an industry benchmark.

III. Application Value and Industry Trends of Fire-Resistant GRC Decorative Panels

Against the backdrop of increasingly stringent green building and fire safety requirements, fire-resistant GRC decorative panels are becoming the preferred material for high-end buildings. Compared with traditional stone curtain walls, they reduce weight by more than 60%, lowering structural loads; compared with metal panels, they offer superior fire performance and greater design freedom. With an annual production capacity of 600,000 square meters and a service network covering the whole country, Qinglong Group has successfully applied fire-resistant GRC decorative panels in commercial complexes, cultural venues, and other scenarios, while its overseas market has expanded to Southeast Asia and the Middle East.

With the implementation of standards such as the Technical Standard for Application of Glass Fiber Reinforced Cement (GRC) in Buildings (JGJ/T423-2018), the technical standards for fire-resistant GRC decorative panels will become more complete. As a participant in industry standard-setting, Qinglong Group consistently upholds the values of "honesty, perseverance, trust, and collaboration," driving the deep application of fire-resistant GRC decorative panels in building safety and aesthetic expression through technological innovation and quality control, continuously empowering its mission of "creating beautiful buildings."