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Title: 飛灰混凝土傳輸行為之研究
Chloride transport bebavior in Fly Ash Concrete
Authors: Yen-Chih Liu
Contributors: NTOU:Institute of Materials Engineering
Keywords: 飛灰;快速氯離子滲透試驗;加速氯離子傳輸試驗;貯鹽試驗
Fly Ash;Rapid Chloride Penetration test;Accelerated Chloride Migration test;Ponding test
Date: 2011
Issue Date: 2011-11-23T03:13:07Z
Abstract: 本研究使用台灣電力股份有限公司台中廠的F級飛灰,依飛灰取代水泥量0%、20%、30%、40%、50%、60%和70%,使用於水膠比0.35、0.45、0.55和0.65之混凝土中,探討其對混凝土傳輸行為之影響。評估項目使用快速氯離子滲透試驗(Rapid chloride penetration test;RCPT)、加速氯離子傳輸試驗(Accelerated chloride migration test;ACMT)、貯鹽試驗(Ponding test)和抗壓強度。 綜合試驗結果顯示混凝土試體養護齡期91天後,飛灰混凝土於飛灰取代量40%以下,對傳輸係數、擴散係數、電量和抗壓強度均比無添加飛灰混凝土佳,抵抗氯離子入侵有良好的效益。然而飛灰混凝土於飛灰取代水泥量70%無法阻止氯離子擴散與傳輸行為。最後飛灰混凝土於飛灰取代水泥量70%時,使用RCPT試驗無法有效評估氯離子滲透能力。
In this study, Taichung, Taiwan power Co. plant in Class F fly ash, The percentage of fly ash to replace cement by weight of 0%, 20%, 30%, 40%, 50%, 60% and 70%, Used in water-cement ratio 0.35,0.45,0.55 and 0.65 of the concrete, to explore the impact of transport behavior of concrete. Assessment project using the rapid chloride ion penetration test (Rapid chloride penetration test; RCPT), chloride ion transport speed test (Accelerated chloride migration test; ACMT), salt storage test (Ponding test) and compressive strength. Comprehensive test results of concrete specimens 91 days after the curing period, fly ash concrete in the amount of fly ash to replace 40% of the transmission coefficient, diffusion coefficient, power and compressive strength without adding fly ash concrete than good, to resist chloride ion invasion have good benefits. However, instead of cement, fly ash concrete at 70% fly ash can not stop the chloride ion diffusion and transport behavior. Finally, instead of cement, fly ash concrete at 70% fly ash, the use of RCPT test can not effectively assess the chloride ion penetration.
URI: http://ethesys.lib.ntou.edu.tw/cdrfb3/record/#G0M98550013
Appears in Collections:[材料工程研究所] 博碩士論文

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