Does GRC Meet Fire Performance Standards? Qinglong GRC Fire Rating and Engineering Safety Analysis

GRC materials offer excellent fire resistance, naturally belonging to non-combustible materials with a fire rating of up to Class A. They can effectively block flame spread and meet various building fire code requirements, making them an ideal decorative material for fire-sensitive scenarios such as high-rise buildings and public venues. GRC products manufactured by Qinglong Group have all passed authoritative fire testing, and their reliable fire protection performance has been verified by multiple major public construction projects.

I. Core Fire Performance Indicators and Ratings of GRC

Fire rating standards: The main components of GRC material are cement, quartz sand, and alkali-resistant glass fiber, making it naturally non-combustible. According to the GB/T8624-2012 standard "Classification of Burning Behavior of Building Materials and Products," its fire rating reaches Class A (non-combustible material). Qinglong GRC products have a measured burning performance of Class A, with no combustion, no melting, and no toxic smoke release. Fire resistance limit performance: 15mm thick GRC panels have a fire resistance limit of ≥1.5h, and 20mm thick panels can reach over 2.0h, far exceeding ordinary decorative materials. Qinglong's 20mm thick GRC curtain wall panels, under fire resistance testing, showed no flame penetration or structural collapse within 120 minutes. Smoke toxicity indicators: No toxic or harmful gases are released during combustion, with a smoke toxicity rating of Class ZA1 (safety level), meeting safety requirements for public buildings and living environments. Qinglong GRC products all pass smoke toxicity testing.

II. Core Advantages and Mechanisms of GRC Fire Performance

Inorganic material properties: Cement and quartz sand are both inorganic non-combustible materials that do not produce flammable gases at high temperatures, essentially eliminating combustion risks—unlike combustible decorative materials such as wood and plastic. Fiber-reinforced protection: Alkali-resistant glass fiber maintains a certain strength at high temperatures, preventing GRC components from rapidly disintegrating in a fire and extending fire resistance time. Qinglong GRC products maintain structural integrity even at high temperatures of 600°C. Low thermal conductivity: GRC has a low thermal conductivity (0.8-1.0W/(m·K)), which can effectively block heat transfer and slow the spread of fire, buying time for personnel evacuation and firefighting rescue. In fire simulation tests, the temperature on the non-fire-exposed side of Qinglong GRC curtain walls rose slowly.

III. GRC Fire Protection Application Solutions for Different Building Scenarios

High-rise building exterior walls: Using Class A fire-rated GRC curtain wall panels combined with fire-resistant sealant and fire isolation belts, the GRC exterior wall project for Qinglong's Guangzhou Xinghewan high-rise residences fully meets high-rise building fire codes and passed fire inspection acceptance in one go. Public venue buildings: For theaters and convention centers, GRC components with high fire resistance limits are selected (fire resistance limit ≥2.0h). The 9,000 square meter GRC curtain wall of Qinglong's Wuhan Hanxiu Theater, as a large-scale performance venue, delivers fire performance that meets safety requirements for public assembly places. Underground building spaces: For underground utility tunnels and subway stations, moisture-proof + fire-resistant composite GRC components are used. The GRC interior for a Qinglong subway supporting project combines fire resistance and moisture resistance, meeting underground space safety standards. Commercial complexes: GRC decorative components are prioritized in areas with dense foot traffic, such as atrium ceilings and fire compartment partitions. The GRC interior of Qinglong's Nanning Wuxiang China Resources MixC, through fire protection design optimization, enhances the safety level of commercial spaces.

IV. Proven Evidence and Assurance of Qinglong GRC Fire Performance

Project case verification: The GRC curtain wall project for the Shenzhen Pingshan High-tech Zone Comprehensive Service Center (convention + hotel), as a Luban Award-winning project, passed stringent acceptance for fire performance, meeting fire protection requirements for large public buildings; the GRC exterior walls of the Shanghai Qingpu R&D Base, as a high-tech park building, achieved a Class I fire safety rating. Authoritative testing certification: Every batch of products is tested by the National Fire Product Quality Supervision and Inspection Center, with formal fire test reports issued; Qinglong GRC products achieve a 100% pass rate in fire testing. Fire protection design support: Professional fire protection detailed design services are provided, optimizing component thickness, joint sealing, and other details in line with project fire protection requirements. Qinglong has provided customized fire protection solutions for multiple fire-sensitive projects.

GRC materials fully meet fire performance standards with significant advantages; their natural Class A non-combustible properties make them a safe choice for all types of buildings. Qinglong Group, with its strict quality control and professional fire protection design capabilities, provides reliable GRC fire protection solutions for projects. Choosing GRC materials with excellent fire performance from a professional manufacturer is key to improving a building's fire safety level.