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碩士論文公告區 |
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| 年度： | 93 | |
| 姓名： | 林淑蘭(Shu-Lan Lin) | |
| 論文題目(中)： | 活性粉混凝土補強混凝土構件對火害與凍融之測試研究 | |
| 論文題目(英)： | Study of Fire-Damage and Freeze-Thaw of Strengthening Concrete Members Using Reactive Powder Concrete | |
| 摘要(中)： | ||
| 本研究主要探討以活性粉混凝土補強混凝土構件對火害與凍融之測試；首先進行活性粉混凝土之力學性質測試，其次藉由高溫火害試驗及凍融循環試驗評估其耐久性，試驗項目包括：抗壓強度、抗彎強度、劈張強度、抗拉強度、斜剪強度等試驗，並針對以普通混凝土與添加不同鋼纖維含量之活性粉混凝土為補強材料，又以補強不同的厚度來對其補強效果特性加以評估。希望藉由本研究之試驗結果，在未來能有效提供建築結構維修補強的參考。 研究結果顯示，活性粉混凝土具有高強度、高韌性及抗磨損等力學特性。在高溫火害試驗中，發現添加鋼纖維之活性粉混凝土，溫度達400℃以上延燒2小時，會導致試體爆裂破壞。但在凍融循環試驗中，對其強度與磨損能力影響甚小，顯示活性粉混凝土極佳之抗凍融耐久能力；以添加1%鋼纖維之活性粉混凝土為補強材料，補強厚度為2cm補強混凝土構件可獲得良好的補強成效。 |
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| 摘要(英)： | ||
| In this study, reactive powder concrete（RPC）was used to investigate the effect of strengthening concrete members by fire-damage test and freeze-thaw test. At first, the physical and mechanical properties of RPC were tested. Secondly, evaluate the durability of RPC by fire-damage test and freeze-thaw test. The tests included compressive strength, flexural strength, splitting tensile strength, tensile strength, and slant shear strength etc. Their reinforced effect was evaluated and analyzed by different repair material and different thickness, such as plain concrete and RPC with different amount of fibers. It is expected that this studies and tests will be helpful to the strengthening of the damaged building structures. The results show that the mechanical properties of RPC possess high strength, toughness, and abrasion resistance. It could be detected in the fire-damage test at the temperature of 400 ℃ above and fire duration of 2 hours which cause explosion of RPC. There is no damaged influence on strength and abrasion after the freeze-thaw test. The RPC displays excellent durability and freeze-thaw resistance. The RPC2 with 2-cm thickness on strengthening concrete members could be obtained excellent retrofit effects. |
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| 檔案： | 沒有相關檔案 | |
| 相關連結： | http://ethesys.lib.cyut.edu.tw/ETD-db/ETD-search-c/view_etd?URN=etd-0810105-134207 | |