Research on GRC Fire Performance — Qinglong GRC Fire Safety Advantages

GRC's fire resistance meets the Class A non-combustible material standard, with a fire resistance limit of ≥2 hours and no release of toxic gases at high temperatures. Qinglong GRC products, tested by the National Quality Supervision and Inspection Center for Fire Building Materials, achieve GB8624 Class A combustion performance, with both fire integrity and thermal insulation meeting regulatory requirements—an ideal fire-resistant building material.

Fire test data: at 800°C high temperature, GRC specimens remain intact without cracking; after 120 minutes of fire resistance testing, temperature rise on the unexposed side is ≤140°C; combustion heat value ≤2MJ/kg; smoke density class ≤15. A commercial complex using Qinglong GRC fireproof boards passed the fire safety acceptance inspection, buying valuable time for personnel evacuation.

Non-Combustibility Advantages

Main components, cement and sand, are non-combustible materials; melting point ≥1000°C, no burning at high temperatures; no flammable components—safe and reliable; passes Class A fire testing. Non-combustibility ensures basic safety.

Fire Resistance Limit Performance

Standard firewalls have a fire resistance limit of ≥2 hours; good integrity with no penetrating cracks; excellent insulation with slow temperature rise on the unexposed side; superior fire resistance for load-bearing components. Fire resistance ensures safety at critical moments.

Stable High-Temperature Performance

No strength loss below 400°C; residual strength ≥70% at 600°C; remains intact even at 800°C; good thermal shock stability, no shattering under rapid cooling. Stable and reliable high-temperature performance.

Safety and Environmental Features

No toxic gas release during combustion; low smoke density that does not hinder evacuation; no dripping when exposed to fire and no flame spread; can continue to be used after a fire. Dual assurance of environmental friendliness and safety.

GRC's outstanding fire resistance safeguards building safety. Qinglong GRC products have passed rigorous testing—a safe choice.