FIREPROOF CLADDING

• Main Authors: YODA ATSUSHI, WAKAYAMA YOSHIHIDE, HAYASHI NAOKI, KOBAYASHI TAKAYA, JOJIMA YUSUKE
• Format: Patent
• Language: English; Japanese
• Published: 17.01.2024
• Subjects: BLASTING; BUILDING; CEILINGS; ENGINEERING ELEMENTS AND UNITS; FIRE-FIGHTING; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HUMAN NECESSITIES; IMPREGNATING OR COATING OF PAPER; INSULATION OR OTHER PROTECTION OF BUILDINGS; JOINTS OR FITTINGS FOR PIPES; LIFE-SAVING; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PIPES; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; ROOFS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; TEXTILES; THERMAL INSULATION IN GENERAL; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; WALLS, e.g. PARTITIONS; WEAPONS

To provide fireproof cladding being light-weight, facilitating covering of a framework of a steel material and manufactured at low cost.SOLUTION: Fireproof cladding 1 for covering a steel framework, the fireproof cladding is acquired by wet papermaking of water slurry of a composition containing 50-99 mass% of artificial mineral short fibers composed of biosoluble fibers alone, or mixed wool of the biosoluble fibers and rock wool, and 1-11 mass% of an organic binder composed of organic fibers. The composition contains heat-expandable inorganic powder with a particle size distribution of 0.2 to 8 mm in a proportion of more than 0 mass% and equal to and less than 11 mass%. Bulk density of the fireproof cladding 1 is 0.13 g/cm3 or more and less than 0.18 g/cm3.SELECTED DRAWING: Figure 1A 【課題】軽量で、鉄骨材の骨組みを被覆し易く、かつ、低コストで製造可能な耐火被覆材を提供する。【解決手段】耐火被覆材１は、鉄骨造の骨組みを被覆する耐火被覆材であって、生体溶解性ファイバ単独、又は、前記生体溶解性ファイバとロックウールとによる混合ウールからなる人造鉱物短繊維５０～９９質量％と、有機質繊維からなる有機質結合剤１～１１質量％と、を含む組成物の水分スラリーを湿式抄造して得られるものである。前記組成物は、粒度分布が０．２～８ｍｍである加熱膨張性無機質粉末を、０質量％を超えて１１質量％以下の割合で含む。耐火被覆材１のかさ密度は、０．１３ｇ/ｃｍ３以上で、かつ０．１８ｇ/ｃｍ３未満である。【選択図】図１Ａ