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A platform for research: civil engineering, architecture and urbanism
FIRE-PROOF PROTECTED MORTAR AND FIRE-PROOF PROTECTED STRUCTURE
To provide a fire-proof protected mortar capable of being used for civil engineering structures, the mortar: being difficult to explode even when subjected to a fireproof test using a RABT heating curve whose furnace temperature reaches 1,200°C in 5 minutes from the start of heating; having excellent consistency immediately after mixing; and having excellent integrity with a substrate, and to provide a fire-proof protected structure capable of being used for civil engineering structures, the structure: having excellent integrity with the fire-proof protected mortar; and being difficult to explode even when subjected to the fireproof test using the RABT heating curve whose furnace temperature reaches 1,200°C in 5 minutes from the start of heating.MEANS: In a fire-proof protected mortar, a specific fiber content, the amount of aggregate, the amount of cement polymer, and water content are each made in a specific proportion. When the fibers are dispersed in water, a fiber diameter thereof is 1 to 100 μm; the fiber content thereof is 0.05 to 1.0 vol.% with respect to the volume of the mortar; the amounts of aggregate and cement polymer are 80 to 300 pts.mass and 1 to 30 pts.mass, respectively, based on 100 pts.mass of a cement; and a water-cement ratio is 35% to 60%.SELECTED DRAWING: None
【課題】本発明は、土木構造物に用いることのできる、加熱開始から５分で炉内温度が１２００℃に達するＲＡＢＴ加熱曲線による耐火試験を行っても爆裂し難く且つ混錬直後のコンシステンシーの優れ、下地との一体性に優れる耐火被覆モルタルを提供すること。また、本発明は、土木構造物に用いることのできる、耐火被覆モルタルと下地との一体性に優れ、加熱開始から５分で炉内温度が１２００℃に達するＲＡＢＴ加熱曲線による耐火試験を行っても爆裂し難い耐火被覆構造を提供すること。【手段】特定の繊維の含有量、骨材量、セメント用ポリマー量及び用いる水量をそれぞれ特定の割合とする。繊維が水に分散しているときの繊維径が１～１００μｍであり、繊維量はモルタルの体積に対し０．０５～１．０体積％、骨材量及びセメント用ポリマー量は、セメント１００質量部に対して８０～３００質量部及び１～３０質量部、水セメント比３５～６０％。【選択図】なし
FIRE-PROOF PROTECTED MORTAR AND FIRE-PROOF PROTECTED STRUCTURE
To provide a fire-proof protected mortar capable of being used for civil engineering structures, the mortar: being difficult to explode even when subjected to a fireproof test using a RABT heating curve whose furnace temperature reaches 1,200°C in 5 minutes from the start of heating; having excellent consistency immediately after mixing; and having excellent integrity with a substrate, and to provide a fire-proof protected structure capable of being used for civil engineering structures, the structure: having excellent integrity with the fire-proof protected mortar; and being difficult to explode even when subjected to the fireproof test using the RABT heating curve whose furnace temperature reaches 1,200°C in 5 minutes from the start of heating.MEANS: In a fire-proof protected mortar, a specific fiber content, the amount of aggregate, the amount of cement polymer, and water content are each made in a specific proportion. When the fibers are dispersed in water, a fiber diameter thereof is 1 to 100 μm; the fiber content thereof is 0.05 to 1.0 vol.% with respect to the volume of the mortar; the amounts of aggregate and cement polymer are 80 to 300 pts.mass and 1 to 30 pts.mass, respectively, based on 100 pts.mass of a cement; and a water-cement ratio is 35% to 60%.SELECTED DRAWING: None
【課題】本発明は、土木構造物に用いることのできる、加熱開始から５分で炉内温度が１２００℃に達するＲＡＢＴ加熱曲線による耐火試験を行っても爆裂し難く且つ混錬直後のコンシステンシーの優れ、下地との一体性に優れる耐火被覆モルタルを提供すること。また、本発明は、土木構造物に用いることのできる、耐火被覆モルタルと下地との一体性に優れ、加熱開始から５分で炉内温度が１２００℃に達するＲＡＢＴ加熱曲線による耐火試験を行っても爆裂し難い耐火被覆構造を提供すること。【手段】特定の繊維の含有量、骨材量、セメント用ポリマー量及び用いる水量をそれぞれ特定の割合とする。繊維が水に分散しているときの繊維径が１～１００μｍであり、繊維量はモルタルの体積に対し０．０５～１．０体積％、骨材量及びセメント用ポリマー量は、セメント１００質量部に対して８０～３００質量部及び１～３０質量部、水セメント比３５～６０％。【選択図】なし
FIRE-PROOF PROTECTED MORTAR AND FIRE-PROOF PROTECTED STRUCTURE
耐火被覆モルタルおよび耐火被覆構造
SUGINO YUSUKE (author) / TANIBE TORU (author)
2023-05-23
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2019
Fire-proof crack-proof plastering mortar and preparation method thereof
| European Patent Office | 2015