| Summary: | 碩士 === 國立臺灣海洋大學 === 材料工程研究所 === 99 === 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.
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