| abstract |
PROBLEM TO BE SOLVED: To provide a fire-resistant board capable of forming a good fire-resistant foam layer and preventing fire spread without the risk of softening due to heating and dropping of carbide when a fire occurs. The task is to provide. SOLUTION: This fire-resistant board has a sheet material adhered to at least one surface of a base material, wherein the sheet material is at least one selected from a binder, an azo compound, a hydrazo compound, a nitroso compound and a sulfonyl hydrazide compound. Bonding comprising a foaming agent comprising a seed, an expandable graphite having an expansion temperature of 200 to 400 ° C., a thermally decomposable nitrogen-containing compound, at least one selected from a branched polyhydric alcohol and a saccharide, and a flame retardant A refractory board attached to the base material via an agent is a solution. |