METHOD FOR EVALUATING FIRE RESISTANCE EFFICIENCY, AND TEST METHOD FOR FIRE RESISTANCE EFFICIENCY

PROBLEM TO BE SOLVED: To easily evaluate fire resistance efficiency of laminate lumber or fire resistance efficiency of a load bearing part of the laminate lumber.SOLUTION: A load bearing part 52 makes temperature conductivity lower and more hardly increases a temperature, when density of a core mat...

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Bibliographische Detailangaben
Hauptverfasser:	NAGAOKA TSUTOMU, NAGAMORI HIROKI, OHASHI HIROKAZU, IGARASHI SHINYA
Format:	Patent
Sprache:	eng
Schlagworte:	BUILDING CEILINGS FIXED CONSTRUCTIONS FLOORS GENERAL BUILDING CONSTRUCTIONS INSULATION OR OTHER PROTECTION OF BUILDINGS ROOFS WALLS, e.g. PARTITIONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To easily evaluate fire resistance efficiency of laminate lumber or fire resistance efficiency of a load bearing part of the laminate lumber.SOLUTION: A load bearing part 52 makes temperature conductivity lower and more hardly increases a temperature, when density of a core material 72 is higher. Thus, a load bearing part 52B made of a core material 72B with higher density more hardly increases the temperature than a load bearing part 52A made of a core material 72A with lower density.