Corrosion control for reinforced concrete

Technical Report · Sat Jan 01 04:00:00 EST 1983

OSTI ID:6790793

Torigoe, R M

The National Bureau of Standards has recorded that in 1975 the national cost of corrosion was estimated at $70 billion. Approximately 40 percent of that total was attributed to the corrosion of steel reinforcements in concrete. Though concrete is generally perceived as a permanent construction material, cracking and spalling can occur when corrosion of steel reinforcements progresses to an advanced stage. This problem frequently occurs in reinforced concrete highway bridge decks, wharves, piers, and other structures in marine and snowbelt environments. Since concrete has a very low tensile strength, steel reinforcements are added to carry the tensile load of the composite member. Corrosion reduces the effective diameter of the reinforcements and, therefore, decreases the load carrying capability of the member. Though the corrosion process may occur in various forms and may be caused by different sources, the ultimate result is still the failure of the reinforced concrete.

• Research Organization: Florida Univ., Gainesville (USA). Dept. of Civil Engineering
• OSTI ID: 6790793
• Report Number(s): AD-A-139974/0
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360604* -- Materials-- Corrosion
Erosion
& Degradation
ALLOYS
BUILDING MATERIALS
CARBON STEELS
CATHODIC PROTECTION
CHEMICAL REACTIONS
CHEMISTRY
CONCRETES
CORROSION
CORROSION PROTECTION
CRACKS
ELECTROCHEMISTRY
ELEMENTS
FAILURES
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
METALS
REINFORCED CONCRETE
REINFORCED MATERIALS
STEELS
THERMODYNAMICS
ZINC