碩士 / 國立臺灣科技大學 / 營建工程技術學系 / 83 / The Bridge structure may nave corrosion problem under external
environment and loading condition. Therefore, its life cycle
time may be reduced and needs further maintenance and
repairing. Thus, life cycle cost of structure will be high.
Recently, due to local HPC (High Performance Concrete) with
high workability and high strength is successfully developed,
such concrete is generally considered to have better
durability. It needs further investigation on steel corrosion
of HPC. Therefore, this research majors in studying the
corrosion behavior of HPC beam with different mixture
proportion containing pozzolans and steel fiber. Also, this
research is taken to measure electronic potential and corrosion
rate of rebar in HPC under repeated loading and marine
enviornment. Macro-studies of mechanical property and
permeability and chemical analysis are preceded at the seme
time. Such results are matching with the micro- technology of
MIP and SEM, the rebar corrosion behavior can be understood.
Under repeated loading, no matter whether pozzolan or steel
fiber is added or not, once the fatigue cracking initiates, the
rebar electronic potential will drop from the range of
uncorroded to corroded. HPC with additional pozzolans and steel
fiber has high electronic potential and is expected to have
better corrosion prevention result.
| Identifer | oai:union.ndltd.org:TW/083NTUST512034 |
| Date | January 1995 |
| Creators | Yi Feng-Jane, 詹宜峰 |
| Contributors | Chao-Lung Hwang, 黃兆龍 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 186 |
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