Fire-resistant heat-insulation composition, fire-resistant heat-insulation composition slurry, fire-resistant heat-insulation board, and fire-resistant heat-insulation structure

Abstract

The present invention provides a structure that possesses both fire resistance and heat insulation properties, and that is capable of retaining the shape thereof without collapsing and deforming when exposed to a fire. The present invention provides a fire-resistant heat-insulation composition that contains: 70-250 parts by mass of plaster with respect to 100 parts by mass of calcium aluminate having a CaO content of 34% or greater; and, with respect to 100 total parts by mass of the calcium aluminate and the plaster, 0.1-20 parts by mass of a fibrous inorganic clay mineral in which the proportion of water of crystallization is 5% or greater.

Description

technical field [0001] The present invention relates to a fire-resistant and heat-insulating composition for building a fire-resistant and heat-insulating structure, a fire-resistant and heat-insulating composition slurry, a fire-resistant and heat-insulating panel, and a fire-resistant and heat-insulating structure. Background technique [0002] Various heat insulating materials and refractory materials are used in buildings. As heat insulating materials, polyurethane foam, polystyrene foam, and phenolic foam, which are resin foams with high heat insulating effect, light weight and good workability, are used. Low-cost inorganic fiber aggregates such as glass wool and asbestos. [0003] Since the resin foam is an organic substance and burns in the event of a fire, it often becomes a cause of damage expansion due to flame propagation, and countermeasures are desired. [0004] On the one hand, inorganic fiber aggregates such as glass wool and asbestos are mainly composed of n...

AI Technical Summary

Problems solved by technology

However, such conventional non-combustible heat insulating panels cannot solve the problem that although the surface facing the flame will not burn in a fire, the interior of the panel cannot be used as a material that meets the fire-resistant structural specifications stipulated in the Building Standards Act. The phenolic foam melts due to the heat, creating cavities, and the board falls off by itself, causing the flame to spread

The materials described in Patent Documents 7 and 8 are used for the purpose of covering the surface of steel bars from fire damage, and it is considered that they do not have great thermal insulation properties.

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