論文・報告
| No. | タイトル・執筆者 |
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| 6 |
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本報では、ポルトランドセメントを使用しない超低収縮・高強度コンクリートの実用化を目的とし、火災加熱を受けた際の爆裂性状を確認した。ポリプロピレン繊維と鋼繊維を所定量混入した供試体に対し材齢約3か月と1年において爆裂試験を実施し、材齢の経過が強度発現と爆裂性状に与える影響を確認した。実験の結果、繊維の混入により爆裂による損傷は低減された。また、爆裂による損傷は強度増進に伴い小さくなる傾向が得られた。 キーワード: 低環境負荷、耐火、爆裂、鋼繊維、ポリプロピレン繊維 |
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In this report, the explosion property under fire condition was investigated for the purpose of practical application of ultra-low shrinkage and high strength concrete without Portland cement. Explosion tests were carried out on small specimens containing a specified amount of polypropylene fiber and steel fiber at ages around 3 months or 1 year. From the test results, authors investigated as to the effect of strength gain to the explosion properties. As a result, the damage caused by the explosion was reduced due to containing fibers. It was also confirmed that the spalling was reduced due to compressive strength gain of concrete as well. Key Words: Low environmental impact, Fire resistance, Explosion, Steel fiber, Polypropylene fiber |
論文