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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Repair of Concrete in Tropical Marine Environment
Author(s): Guido W. Geymayr
Publication: Special Publication
Appears on pages(s): 527-556
Keywords: climate; concrete piles; corrosion; epoxy resins; humidity; marine atmospheres; protective coatings; repairs.
Abstract:Although concrete in tropical marine environment is never exposed to freezing and thawing, high temperature and humidity accelerate corrosion of steel and deterioration of concrete. There are a number of other factors which make it difficult to obtain a durable concrete in tropical areas. These factors include quality of aggregates and workmanship, special design requirements for easy-to-build structures and problems related to the remoteness of many jobsites. Corrosion mechanisms are mentioned briefly, repair-methods are explained in detail, beginning with the removal of deteriorated concrete, the restoration of reinforcing steel, replacement of concrete with cement-bound mixtures or epoxide mortars to adequate surface protection. Epoxy mortar placemnt under water as a repair method for concrete piles is described in detail,using a fluid mix of a high-density epoxy compound, which is poured into suitable, recoverable metal forms and which has been in use for 5 years at the Maraven refinery in Punta Cardon,on the Paraguand peninsula, Venezuela.
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