هل يستوفي GRC معايير أداء مقاومة الحريق؟ شهادة سلامة الحريق المعتمدة لتشينغلونغ لـ GRC

GRC offers excellent fire resistance, with a fire resistance limit of over 4 hours and a combustion performance rating of Class A (non-combustible material), fully meeting building fire code requirements. As a fire-resistant building material, GRC has passed comprehensive testing by the National Quality Supervision and Inspection Center for Fire Building Materials and has obtained multiple certifications.

In the Shanghai Century Plaza renovation project, the Qinglong GRC curtain wall system underwent rigorous fire testing: fire resistance tests were conducted in accordance with the GB/T 9978 standard. Under the standard fire curve, at 120 minutes, the average temperature rise on the unexposed surface was ≤140°C, and the maximum point temperature rise was ≤180°C, with both integrity and insulation indicators meeting requirements. This outstanding fire resistance has led to the widespread application of GRC in high-rise buildings and densely occupied spaces. The GRC panels used in the project do not release toxic gases in a fire and maintain good integrity at high temperatures, providing valuable time for evacuation and firefighting.

Combustion Performance Rating Certification

Tested in accordance with the GB 8624 standard, GRC achieves a Class A2 combustion performance rating, a Class t0 smoke toxicity rating, and a Class d0 flaming droplets rating. This high-level certification allows it to be used in all types of building applications without restrictions.

Fire Resistance Limit Test Data

100mm thick GRC panels have a fire resistance limit of ≥240 minutes, meeting the requirements for Grade 1 fire resistance rating. At high temperatures, GRC panels do not spall and maintain good integrity—a performance that is particularly important in tunnel engineering.

High-Temperature Performance Stability

At 400°C, strength retention exceeds 80%, and at 600°C, 50% of strength is still maintained. This high-temperature performance stability ensures that structures do not collapse suddenly in a fire.

Advantages in Fire-Resistant Construction Applications

GRC can be made into various fire-resistant components, such as fireproof boards and fire-rated suspended ceilings. Used in combination with steel structures, it can replace traditional fireproof coatings, improving both durability and aesthetics.

The fire resistance of GRC has been verified through authoritative testing and engineering practice, making it a safe and reliable fire-resistant building material.