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碩士論文公告區 |
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| 年度： | 91 | |
| 姓名： | 吳建興(Chien-Hsing Wu) | |
| 論文題目(中)： | 活性粉混凝土補強混凝土構件與耐久性能之測試研究 | |
| 論文題目(英)： | Durability of Strengthening Concrete Members Using Reactive Powder Concrete | |
| 摘要(中)： | ||
| 臺灣位於環太平洋地震帶，不僅地震頻繁，且高溫溼熱，氣候變化不定，混凝土結構物常因內部及外在因素之影響，造成混凝土構件產生裂縫或損壞，對建築物安全性影響甚鉅。 本研究主要探討以活性粉混凝土補強混凝土構件及其耐久性能測試。首先，測試活性粉混凝土之力學性質，其次藉由加速中性化試驗及海水乾濕循環加速劣化試驗評估其耐久性，試驗項目包括：抗壓強度、抗彎強度、斜剪強度、劈張強度、拉拔強度、超音波波速量測、磨損試驗、氯離子滲透試驗、碳化深度、X光繞射分析及掃瞄式電子顯微鏡觀測等試驗。在本文之最後，針對兩種不同補強材料之補強效果及補強成本等特性加以評估。希望藉由本研究之試驗結果，能提供建築結構維修補強之參考。 測試結果顯示，活性粉混凝土具高強度、高韌性及抗磨損等力學特性。在加速碳化試驗中並無發現碳化情形，且經海水乾濕循環試驗，對其強度及微觀結構並無影響，顯示活性粉混凝土極佳之耐久性及抗滲透能力；以活性粉混凝土及碳纖維強化複合材料補強混凝土構件皆可獲得良好的補強成效，然而二者補強成本差異相當大。 |
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| 摘要(英)： | ||
| Taiwan is located in the Pacific earthquake region, not only the frequency is very high, but the weather here hot and humid, changeful the weather, cracks or damage of concrete members will occur as a result of a number of internal and external factors in concrete structures, the safety of building deeply affected by it. In this study, reactive powder concrete（RPC）is used to investigate the durability of strengthening concrete members. In the first place, testing for mechanical properties of RPC. Secondly, evaluate the durability of RPC by accelerating carbonation test and seawater dry-wet cycle acceleration deterioration test. The test included compression strength, bending strength, slant shear strength, splitting tensile strength, pull out strength, ultrasonic wave propagation velocity measurement, abrasion test, chloride ion penetration test, carbonated depth measurement, X-ray, and SEM observation etc. In the last of this thesis, two different materials are evaluated with their reinforced effect and cost. It is expected that this studies and tests will be helpful to the strengthening of the damaged building structures. The test results show that the mechanical properties of reactive powder concrete possess high strength, toughness, and abrasion resistance. At the accelerated carbonation test, no carbonation could be detected on reactive powder concrete samples. After seawater dry-wet cycle test exposures, there is no influence on strength and microstructure. The RPC displays excellent durability and penetration resistance. Using RPC and carbon fiber reinforcement polymers （CFRP） on strengthening concrete members could be obtain excellent retrofit effects, but their material costs are extremely different. |
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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-0811103-034709 | |