Performance of corrosion inhibiting admixtures for structural concrete -- assessment methods and predictive modeling
- CC Technologies Labs., Inc., Dublin, OH (United States)
During the past fifteen years corrosion inhibiting admixtures (CIAs) have become increasingly popular for protection of reinforced components of highway bridges and other structures from damage induced by chlorides. However, there remains considerable debate about the benefits of CIAs in concrete. A variety of testing methods to assess the performance of CIA have been reported in the literature, ranging from tests in simulated pore solutions to long-term exposures of concrete slabs. The paper reviews the published techniques and recommends the methods which would make up a comprehensive CIA effectiveness testing program. The results of this set of tests would provide the data which can be used to rank the presently commercially available CIA and future candidate formulations utilizing a proposed predictive model. The model is based on relatively short-term laboratory testing and considers several phases of a service life of a structure (corrosion initiation, corrosion propagation without damage, and damage to the structure).
- OSTI ID:
- 351784
- Report Number(s):
- CONF-980316--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Time-to-corrosion of reinforcing steel in concrete slabs. Volume 5. Calcium nitrite admixture or epoxy-coated reinforcing bars as corrosion protection systems. Report for July 1980-December 1982
Relationships between anodic polarization and corrosion of steel in concrete