Numerous studies and papers have addressed the need and technical merits of various external corrosion protection scenarios for ductile iron pipe. Most recently, a Design Decision Model was developed to select the optimum method of corrosion protection, considering both the likelihood and consequence of failure.
Optimized solutions for long service-life of concrete structures in aggressive environments. Collecting data on structures. Extracting and testing cores from selected elements. Data input to a mechanistic chloride transport model. Remediation scenarios modeled. The cost of each scenario can be compared. Case studies.
The phenomenon of a potential-dependent chloride threshold (PDT) along with the corrosion macrocell coupling between active and passive steel assembly components allows to combine a corrosion initiation-propagation model to forecast the durability of reinforced concrete structures in marine service.
A top-of-line corrosion (TLC) model integrated into a CO2/H2S corrosion prediction model. The TLC model determines the top of the line corrosion rate of carbon steel based on water chemistry and film-wise condensation rate. The effect of various glycols, such as Monoethylene Glycol, Diethylene glycol and Triethylene Glycol, are included.