Materials Group

Materials group are studying on the long term durability of various materials such as concrete, steel, protection method under marine environment, by using our exposure test sites ( tidal pool, seawater spraying field, Hazaki Oceanographical Research Station, etc.) . Our main research results are the chloride- induced corrosion of reinforcement in concrete, the deterioration of concrete and the protection method for steel structure under marine environment.

Materials Group(Web site)

Members(Research Areas) 

Greetings

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Group Leader
Toru YAMAJI

We are studying on the long term durability of various materials under marine environment based on the long term exposure test. The long term exposure test takes long term, but, obtained results have very useful. Our experience and research environment are our strong point in our research activity. We are trying to continue the long term exposure test, which our senior members started, and also present members will start for new subjects.

Research Achievements

Evaluation of longterm durability of concrete, steel and various materials based on exposure test

This research aims to grasp the deterioration characteristic and the service life of various materials and to improve the accuracy of the deterioration prediction.

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 Reinforced concrete slab with chloride induced deterioration (steel corrosion) in open type wharf

 

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Chloride ion concentration in concrete with crack (by EPMA)

 

Investigation on integrated design methods of corrosion protection for steel port structures

This research aims at the establishment of performance based design method of cathodic protection method and coating protection method.

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Corrosion protection method for the immersed and buried zone (Cathodic protection method)

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Corrosion protection method for the tidal, splash and marine atmospheric zone (Protective coating method)

 

Facilities

Long term exposure test sites
High-quality-concrete development facilities
Hazaki Oceanographical Research Center

Contact Information


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