Comparison of rates of general corrosion and maximum pitting penetration on concrete embedded steel reinforcement

Journal Article · Tue Jan 31 23:00:00 EST 1995 · Cement and Concrete Research; (United States)

DOI:https://doi.org/10.1016/0008-8846(95)00006-2· OSTI ID:6768670

Gonzalez, J A; Feliu, S ^[1]; Andrade, C; Alonso, C ^[2]

---

1. Centro Nacional de Investigaciones Metalurgicas, Madrid (Spain)
2. Inst. de Ciencias de la Construccion Eduardo Torroja, Madrid (Spain)

Local attack of reinforcement is observed usually in chloride-contaminated concrete. When mechanical weakening of the concrete structure is affected by the bar section loss in the places where corrosion is intensified, the maximum penetration of the deepest pits happens to be a very relevant datum. In this work average corrosion values are compared with maximum pit depth values. Using natural corrosion tests and accelerated tests, it has been found that the maximum penetration of localized attack on steel embedded in concrete containing chlorides is equivalent to about four to eight times the average general penetration.

• OSTI ID: 6768670
• Journal Information: Cement and Concrete Research; (United States), Journal Name: Cement and Concrete Research; (United States) Vol. 25:2; ISSN CCNRAI; ISSN 0008-8846
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
360604 -- Materials-- Corrosion
Erosion
& Degradation
ALLOYS
BUILDING MATERIALS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COMPOSITE MATERIALS
CONCRETES
CORROSION
CORROSIVE EFFECTS
HALIDES
HALOGEN COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
LIFETIME
MATERIALS
MONITORING
PITTING CORROSION
REINFORCED CONCRETE
REINFORCED MATERIALS
SERVICE LIFE
STEELS