Abstract: Focusing on wildfire suppression, a novel multiphase material was developed to study the fire protection for pine wood and cypress tree. The fire resistant performance of multiphase material on pine wood and cypress tree was studied by carrying out cone calorimeter test, wood-crib fire test, and full-scale cypress fire test. The results show that the multiphase material can prolong the ignition time of pine board and reduce the combustion characteristics parameters such as heat release rate (HRR), total heat release (THR), CO, and CO2 production. The multiphase material forms a dense barrier layer containing metal elements on the surface of the pine board, which plays the role of heat and oxygen insulation. The multiphase material is better than traditional water-based fire extinguishing agent in inhibiting the burning of wood crib, and it has a good fire resistant effect on cypress.

Key words: multiphase material, wood, cypress, fire resistance, full-scale fire experiment