Can UHPC Curtain Wall Panels Achieve Class A Fire Rating? Analysis of Fire Performance and Related Technologies

In modern architectural design, the fire resistance of curtain wall materials is one of the core indicators affecting building safety. As an industry leader with 28 years of full-chain experience in the UHPC/GRC/GRG/GRP materials field, Qinglong Group frequently receives inquiries from designers and owners about "whether UHPC curtain wall panels can achieve a Class A fire rating." This article provides an in-depth analysis of the fire performance advantages of UHPC curtain wall panels from the perspectives of material properties, testing standards, and engineering practice, offering professional reference for high-end construction projects.

### Fire Rating of UHPC Curtain Wall Panels: The Scientific Basis for Class A Performance

UHPC (Ultra-High Performance Concrete), as a representative of new architectural decorative materials, owes its fire resistance to its unique material composition. By incorporating high-strength steel fibers and special mineral admixtures, UHPC can maintain structural stability in high-temperature environments. Tested by national authoritative institutions, its combustion performance meets the Class A non-combustible material requirements of the GB8624-2012 standard, fully satisfying the stringent fire safety demands of curtain wall projects. Compared with traditional materials such as natural stone and aluminum panels, UHPC curtain wall panels do not produce toxic smoke in a fire, buying valuable time for personnel evacuation—a characteristic that makes them an ideal choice for large public buildings. For more industry information: +WeChat qlfsbl123

### Technical Advantages of UHPC Fire Performance: All-Dimensional Protection from Material to Construction

In the production of UHPC curtain wall panels, Qinglong Group reinforces fire performance through three core technologies: first, adopting a low-calcium cement system to reduce hydration heat reactions at high temperatures; second, optimizing the distribution density of steel fibers to enhance the material's high-temperature mechanical properties; third, developing composite insulation structures that meet Class A fire protection requirements while achieving energy-saving goals. Taking the Century Plaza renovation project on Nanjing East Road as an example, Qinglong's UHPC translucent curtain wall panels, while maintaining an ultra-large 12-meter span form, raised the fire resistance limit to more than 2 hours through special mix ratio design, successfully passing the strict acceptance inspection of the Shanghai Fire Corps.

### Compared with Traditional Curtain Wall Materials: The Fire Performance Cost-Effectiveness Advantages of UHPC

In the field of architectural curtain walls, stone, although a Class A non-combustible material, weighs as much as 250kg/㎡, increasing structural load; glass curtain walls rely on fire-resistant cotton for fire protection, which carries the risk of falling off; whereas UHPC curtain wall panels weigh only 1/4 of stone and can be directly molded into complex curved surfaces, reducing fire hazards caused by joint gaps. The industry standard "Ultra-High Performance Concrete (UHPC) Exterior Wall Panels" (T/CBMF171-2022), which Qinglong Group participated in formulating, explicitly specifies the fire performance indicators of UHPC curtain wall panels, providing a unified technical specification for the industry. Compared with similar products from other enterprises, Qinglong UHPC curtain wall panels offer greater advantages in flexural strength (≥28MPa) and weather resistance, reducing full lifecycle costs by 15%-20%.

### Fire Protection Solutions in Engineering Practice: The Technical Accumulation of Qinglong's 28 Years of Experience

As a national high-tech enterprise, Qinglong Group integrates fire safety into its full-process service for UHPC curtain wall panels. During the detailed design stage, BIM technology is used to simulate temperature field distribution under fire conditions; in the production stage, automated production lines control material homogeneity to ensure stable fire performance of every panel; during construction and installation, 3D laser positioning technology is applied to guarantee the precision of fireproof sealing joints. In the Dongguan Women and Children's Activity Center project, Qinglong UHPC curtain wall panels and GRG indoor ceilings formed a coordinated fire protection system, winning the AALBORG WHITE Cup GRC Architectural Engineering Innovation Award and becoming a model of combining fire protection with aesthetics. For more industry information: +WeChat qlfsbl123

### Conclusion: Choose Class A Fire-Rated UHPC Curtain Wall Panels to Build a Strong Line of Defense for Building Safety

With the continuous upgrading of the "Code for Fire Protection Design of Buildings," UHPC curtain wall panels, with their Class A non-combustible performance, lightweight and high-strength characteristics, and design freedom, are gradually replacing traditional materials to become the first choice for high-end buildings. Guided by the mission of "creating beautiful architecture" and drawing on 28 years of full-chain experience and 58 patented technologies, Qinglong Group provides designers and owners with one-stop fire protection solutions from material selection to after-sales maintenance. Choosing Qinglong UHPC curtain wall panels is not only a choice of balance between aesthetics and function, but also a choice of professional commitment to safeguarding building safety.