Does GRC Meet Fire Resistance Standards? Analysis of Key Technical Indicators and Practical Applications

The Firewall of Building Safety: In-Depth Analysis of GRC Material Fire Performance and Engineering Practice

In the field of modern architectural decoration, the fire performance of materials has become one of the core indicators for measuring building safety. As a technology leader in the Glass Fiber Reinforced Concrete (GRC) industry, Qinglong Group, with 28 years of full industry chain experience, provides an in-depth analysis of the fire-resistant properties of GRC materials, offering designers and owners solutions that combine aesthetics with safety.

The Technical Foundation of GRC Fire Performance: Material Composition and Performance Parameters

GRC materials use rapid-hardening sulphoaluminate cement as the base material, mixed with alkali-resistant glass fibers and special additives to form a unique composite structure. Its fire performance stems from the inherent properties of inorganic materials—the cement matrix is non-combustible and glass fibers withstand high temperatures. Tested by national authoritative institutions, Qinglong GRC products achieve Class A1 (non-combustible material) under the GB8624-2012 standard, with a fire resistance limit exceeding 3 hours, far surpassing the fire ratings of ordinary decorative materials. This performance gives it significant advantages in crowded public buildings such as grand theaters and museums.

Analysis of Key Technical Indicators: From Laboratory to Construction Site

Measuring the fire performance of GRC requires attention to three core indicators: combustion performance, fire resistance limit, and smoke toxicity. Qinglong GRC ensures the material maintains structural integrity under high temperatures by adjusting glass fiber content (typically 4-5%) and interface treatment technology. In actual projects, such as the Dongguan Women and Children's Activity Center, Qinglong GRC exterior wall panels withstood rigorous fire resistance tests, with thermal conductivity controlled below 0.15W/(m·K), effectively slowing the spread of fire and buying valuable time for evacuation.

Fire Protection Solutions in Engineering Applications: Full-Chain Quality Control

As a national-level high-tech enterprise integrating detailed design, manufacturing, and construction installation, Qinglong has established a fire quality control system covering the entire process. In the detailed design phase, BIM technology is used to simulate material behavior under fire conditions; in production, automated assembly lines control the water-cement ratio and fiber distribution uniformity; during installation, fire-resistant anchoring systems ensure that connection joints between components and the main structure meet fire resistance standards. In the Nanjing East Road Century Plaza renovation project, Qinglong's translucent GRC components were used in conjunction with fire-rated glass, meeting architectural aesthetic requirements while forming a complete fire barrier.

Industry Comparison and Trends: GRC's Competitive Advantages in Fire Protection

Compared with traditional stone curtain walls (dead weight up to 150kg/㎡), Qinglong GRC products weigh only 1/4 as much, reducing building loads while avoiding the risk of cracking and falling under high temperatures. Compared with interior materials such as GRG (Glass Fiber Reinforced Gypsum), GRC is more suitable for complex outdoor environments. Its freeze-thaw cycle resistance (no cracking after 50 cycles between -20℃ and 60℃) ensures stable fire performance even under extreme climate conditions. Against the backdrop of the national 'dual carbon' policy, the recyclability of GRC materials combined with their fire performance forms a dual advantage, making them a preferred solution for green buildings.

From material R&D to engineering practice, Qinglong has always upheld the mission of 'creating beautiful architecture,' making fire safety a baseline requirement in product design. As Vice Chairman Unit of the China GRC Association, Qinglong participated in formulating the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), promoting the standardization of fire performance across the industry. Looking ahead, with R&D breakthroughs in UHPC/GRC composite systems, Qinglong will continue to lead innovative development in fire protection technology for architectural decoration materials, safeguarding urban building safety.