Abstract: As the country accelerates the “dual carbon” strategy and low-carbon transformation in the construction field, aerogel materials with extremely low thermal conductivity develop rapidly. With the development of aerogel preparation technology, aerogel products began to appear and be applied. In order to study the fire resistance of aerogel products and explore their applicability in fire resistant building components, two fire resistant building components, aerogel composite fire resistant glass and aerogel expanded perlite door, were selected to test the fire resistance and other items according to the standard requirements. The results show, aerogel composite fire resistant glass has excellent heat resistance, cold resistance and ultraviolet radiation resistance. Under high temperature conditions, it can maintain fire integrity within 90 minutes, and lose fire resistance and heat insulation after 85 minutes. Aerogel expanded perlite smoke toxicity and combustion performance are in line with the requirements of GB 12955-2008,Fire Doors, and the doors can maintain fire insulation within 90 minutes.

Key words: aerogel products, fire resistance, building component