Title:
Influence of Three Commonly Used Inorganic Compounds on Pore Solution Chemistry and Their Possible Implications to the Corrosion of Steel in Concrete
Author(s):
Jack Corbo and Hamid Farzam
Publication:
Materials Journal
Volume:
86
Issue:
5
Appears on pages(s):
498-502
Keywords:
accelerating agents; calcium chlorides; calcium nitrate; corrosion; immersion tests; porosity; reinforcing steels; sodium chloride; sodium nitrite; Materials Research
DOI:
10.14359/2101
Date:
9/1/1989
Abstract:
An experimental investigation was conducted to assess the effects of calcium chloride, calcium nitrate, and sodium nitrite on pore solution chemistry and their relationship to corrosion of steel in concrete. The possibility of an ion-exchange mechanism between ingressed chloride ions and complex admixed ions was also investigated. The results indicated that the concentration of admixed ions in the aqueous phase (pore solution) decreased significantly with time. Hence, it is speculated that these chemicals at commonly used dosages are unlikely to significantly promote or inhibit corrosion of reinforcing steel in concrete. It was found that no ion-exchange occurred between ingressed chloride ions and bound admixed anions. 126-689