A study of the repair materials and repair methods for concrete structures in harbor and Marine environment(1/4)

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基本資料

Project title

Code/計畫編號

MOTC-IOT-100-H1DB003a

Translated Name/計畫中文名

港灣混凝土構造物修補材料與工法之研究(1/4)

Project Coordinator/計畫主持人

Wei-Chung Yeih

Funding Organization/主管機關

Institute of Transportation, MOTC

Co-Investigator(s)/共同執行人

黃然
張建智

Department/Unit

Department of Harbor and River Engineering

Website

https://www.grb.gov.tw/search/planDetail?id=2238253

Year

2011

Start date/計畫起

01-02-2011

Expected Completion/計畫迄

31-12-2011

Co-Investigator(s)

Jiang-Jhy Chang

Bugetid/研究經費

1200千元

ResearchField/研究領域

土木水利工程
材料科技

"港灣混凝土構造物長期曝露在海洋環境中，會受到氯離子及硫酸鹽等有害因子的化學侵蝕加以海浪的冲蝕作用，因此混凝土經常發生開裂、剝落及崩落等劣化現象並使埋設之鋼筋快速腐蝕，從而降低構造物的服務品質與使用壽命。所以針對港灣鋼筋混凝土構造物劣化的原因及程度，採用適當的修補策略或補強材料與工法，延長構造物服務年限或提高其服務品質，實為港灣工程刻不容緩的重要研發課題之一。相較於普通混凝土構造物，港灣鋼筋混凝土構造物的修復或補強，特別需要考慮結構物暴露環境的惡劣性與修補材料的適用性與耐久性。緣此，本計畫將針對港灣混凝土構造物之修復或補強，以營建材料研發觀點出發，探討何種材料能夠滿足港灣混凝土構造物修補需要，並瞭解搭配修補材料的適當工法，最後由蒐集資料與研究成果彙整，擬訂港灣鋼筋混凝土構造物修復與補強手冊草案，以提供港灣工程界選擇修補材料或補強方案時之參考。 " "When the harbor concrete structures are exposed in the marine environment, they will suffer from the chemical attack by chloride ions and sulfate as well as the erosion due to the wave. Therefore, concrete may crack, spall and disintegration and these deteriorations induce fast corrosion of rebar embedded inside the concrete. Consequently, the service capability and service life of the structures will be reduced. Therefore, to adopt appropriate repairing strategy or repairing materials and repairing methods according to the cause and degree of deterioration is an important issue for coast and harbor engineering. In comparison with the conventional repair and strengthening for common concrete structures, the repair and strengthening of the concrete structures in marine and harbor environment should consider the severe environment and the appropriateness and durability of repairing materials. Based on these, we proposed to study the repairing or strengthening of concrete structures in the harbor environment from the point of view of materials. We will evaluate which material can satisfy the repair requirement of the harbor environment and understand how to construct the repair. In the final, we will make a draft of the manual of repairing and strengthening concrete structures in harbor and marine environment through literature survey and our study. It is expected this manual can provide a guideline for coast and harbor engineers to design repair and strengthening. "

Keyword(s)

修補材料
修補工法
海洋環境
repair materials
repair methods
Marine environment

DSpace CRIS

A study of the repair materials and repair methods for concrete structures in harbor and Marine environment(1/4)

基本資料

Description