TY - GEN
T1 - Durability of 15-year old concrete with surface coating materials under marine environment
AU - Yamaji, Toru
AU - Komure, Ken Ichi
AU - Hamada, Hidenori
N1 - Funding Information:
This work was supported by Naha Port and Airport Office, Okinawa General Bureau.
Funding Information:
This work was supported by Naha Port and Airport Office, Okinawa General
Publisher Copyright:
© American Concrete Institute, ACI Special Publication 2005.
PY - 2005/9/1
Y1 - 2005/9/1
N2 - The south part of Japan is located in the subtropics. Therefore, steel corrosion in concrete in this region easily tends to initiate and progress due to chloride ion ingress into concrete from the seawater. Under this environment, in order to enhance the durability of reinforced concrete structures in which sufficient concrete cover depth can not be secured due to some restrictions, it is very effective to apply adequate surface coating materials on the concrete surface at early age of exposure. To study the durability of concrete with various surface coating materials under marine environment in the subtropics, exposure test was carried out in the south part of Japan. Various tests such as bond strength of surface coating materials, chloride ion content in concrete and corrosion evaluation of steel bar in concrete were carried out after 15 years of exposure. These results indicate that these surface coating materials are very effective in enhancing the durability of concrete under marine environment. This protection against chloride attack was well maintained for 15 years of exposure to a marine environment.
AB - The south part of Japan is located in the subtropics. Therefore, steel corrosion in concrete in this region easily tends to initiate and progress due to chloride ion ingress into concrete from the seawater. Under this environment, in order to enhance the durability of reinforced concrete structures in which sufficient concrete cover depth can not be secured due to some restrictions, it is very effective to apply adequate surface coating materials on the concrete surface at early age of exposure. To study the durability of concrete with various surface coating materials under marine environment in the subtropics, exposure test was carried out in the south part of Japan. Various tests such as bond strength of surface coating materials, chloride ion content in concrete and corrosion evaluation of steel bar in concrete were carried out after 15 years of exposure. These results indicate that these surface coating materials are very effective in enhancing the durability of concrete under marine environment. This protection against chloride attack was well maintained for 15 years of exposure to a marine environment.
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M3 - Conference contribution
AN - SCOPUS:85111444446
T3 - American Concrete Institute, ACI Special Publication
SP - 239
EP - 252
BT - Quality of Concrete Structures and Recent Advances in Concrete Materials and Testing
A2 - Malhotra, V.M.
PB - American Concrete Institute
T2 - International Conference on Quality of Concrete Structures and Recent Advances in Concrete Materials and Testing 2005: Honoring V. Mohan Malhotra
Y2 - 6 September 2005 through 7 September 2005
ER -
