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Title |
A Study on Fire-Resistant Performance of Concrete Using Nano-Silica Particles
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Keywords |
나노; 실리카; 내화; 콘크리트; nano; silica; fire-resistance; concrete |
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Abstract |
Recently, since the advanced nano technology develops unique physical and chemical properties different from those of the conventional materials. Normal concretes mixed with nano - SiO₂ have been studied to improve the fire-resistance with high strength and lower heat conductivity. In this pilot study, the nano-particle contents in the specimens (Φ100×200mm) were 0, 2, 4, and 6% by weight of cement, and fire-temperatures 200℃, 500℃, and 800℃ were considered. The results show that as the nano-particle contents increases, the weight loss of concrete gradually decreases, and the compressive strength after fire-attack increases effectively.
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