WTI

Winter Maintenance & Effects Ongoing Projects

• Replacing Thermal Sprayed Zinc Anodes on Cathodically Protected Steel Reinforced Concrete Bridges

  The objectives of this project are to determine the most cost-effective method to remove existing zinc anodes from a concrete surface, and to develop a protocol to prepare the concrete surface for the new anode.

• Validating the Durability of Corrosion Resistant Mineral Admixture Concrete (04-GS108)

  To assist Caltrans by validating chloride diffusion coefficients of mineral admixture concrete mix designs currently specified for corrosion mitigation. Furthermore, WTI will establish an accelerated test method to evaluate the chloride permeability of concrete mix design containing mineral admixtures.

• Testing Methodology for Performance Characteristics and Friction Coefficient of Deicing and Anti-icing Chemicals

  The purpose of this project is to conduct a thorough analysis of test methods and available literature and make recommendations to design a single or suite of laboratory tests that will predict the actual field performance of deicers in a variety of meteorological and pavement conditions.

• Electrochemical Rehabilitation of Salt-Contaminated Concrete: A Lab Study - UTC

  To establish preliminary investigation of key factors affecting the performance of electrochemical chloride extraction (ECE) and electrical injection of corrosion inhibitors (EICI), and to validate a modeling framework that may guide the blueprint of ECE/EICI.

• Validating the Durability of Corrosion Resistant Mineral Admixture Concrete - UTC

  The objectives of this research are to validate chloride diffusion coefficients of mineral admixture concrete mix designs currently developed by departments of transportation (DOTs) for corrosion mitigation, and to verify the adequacy of existing measures to mitigate corrosion caused by exposure to marine environments and deicing salt applications.