ABSTRACT

MR. M.FUKUSHIMA is Senior Manager of Engineerings, Nippon Paint Co., Ltd., Tokyo. He has undertakes studies anti-corrosive coating for concrete or steel structures.

OUTLINE: The concrete structure damaged by corrosion, etc. shows numerous cracks of concrete

due to the corrosion of reinforcing rods. It there is one method to shut off the permeation of moisture, oxygen and salt as corrosive factors from the outside, by covering it with concrete-surface coating. Covering/repairing materials are requested for such performances as (1) higher sealing property against the permeation of moisture, oxygen and salty, (2) flexibility to follow the crack of concrete.