| 摘要 |
Disclosed is a glass fiber reinforced plastic (GRP) door with improved fireproof performance capable of preventing a door from being bent by a pressure difference of both surfaces of the door in the case of fire. According to one aspect of the present disclosure, provided is a GRP door includes: a frame forming a lengthwise rectangular framework; GRP skins attached to front and rear surfaces of the frame and formed of a plate-shaped GRP; an interior material formed in an internal space limited by the frame and the GRP skins and formed of a phenolic foam; and a reinforcement material arranged lengthwise in a vertical direction of the internal space, formed of a cellulose fiber reinforced cement (CRC) material, and strengthening the flexural strength of the frame and the interior material. |
