FIRE RESISTANT INTERLAYER MATERIAL, FORMING METHOD OF FIRE RESISTANT INTERLAYER MATERIAL, AND FIREPROOF COMPARTMENT

To provide a fire resistant device and a fire resistant method which can be easily constructed while improving fire resistant property by increasing packing density of a fire resistant material filled in a gap formed between a floor and an outer wall and which can flexibly block an interlayer even when sizes of gaps formed between a floor and an outer wall change depending on places.SOLUTION: A first core material 111 inserted along a longer direction of a gap comprises an incombustible material. A second core material 112 which is provided at least one side of a floor side and an outer wall side on a lateral face in a longer direction of the first core material 111 and which blocks the gap comprises an elastic incombustible material with an elasticity higher than that of the first core material 111.SELECTED DRAWING: Figure 1 【課題】 床と外壁との間に形成される隙間を充填する耐火材の充填密度を増加することで耐火性能を向上させながら容易に施工が可能であり、かつ床と外壁との間に形成された隙間が場所によって大きさに違いがあっても柔軟に層間を閉塞できる耐火装置、および耐火方法を提供することを目的とする。【解決手段】 隙間の長手方向に沿って挿入される第一芯材１１１が、不燃材料からなり、第一芯材１１１の長手方向側面で床側または外壁側のうち少なくとも一方側に設けられて隙間を閉塞する第二芯材１１２が、第一芯材１１１よりも高い弾性を有する弾性不燃材料からなる。【選択図】図１