Corrosion of steel in cracked concrete

Journal Article · Mon Nov 01 04:00:00 EST 1993 · Corrosion (Houston); (United States)

DOI:https://doi.org/10.5006/1.3316020· OSTI ID:5655170

Berke, N S; Dallaire, M P; Hicks, M C; Hoopes, R J ^[1]

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1. W.R. Grace and Co.-Conn., Cambridge, MA (United States)

Corrosion of steel in concrete is studied typically in uncracked concrete. In the field, however, concrete often has cracks that extend to the reinforcing steel. Electrochemical corrosion testing was performed in cracked concrete of two qualities. Results were compared to physical examination of the embedded reinforcement. Corrosion resistance improved significantly as the concrete properties and reinforcement cover approached that recommended in American Concrete Institute 318. Calcium nitrite additions to the concrete reduced corrosion significantly. Results indicated testing in cracked concrete should be performed in concrete representative of that specified in ACl 318.

• OSTI ID: 5655170
• Journal Information: Corrosion (Houston); (United States), Journal Name: Corrosion (Houston); (United States) Vol. 49:11; ISSN 0010-9312; ISSN CORRAK
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
360604 -- Materials-- Corrosion
Erosion
& Degradation
ADDITIVES
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
BUILDING MATERIALS
CALCIUM COMPOUNDS
CHEMICAL REACTIONS
COMPOSITE MATERIALS
CONCRETES
CORROSION
CORROSION RESISTANCE
CRACKS
ELECTROCHEMICAL CORROSION
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MATERIALS TESTING
NITRITES
NITROGEN COMPOUNDS
OPTIMIZATION
OXYGEN COMPOUNDS
REINFORCED CONCRETE
REINFORCED MATERIALS
STEELS
TESTING