Description
Professor Carolyn Hansson’s remarkable journey began in England, during the turbulence of the Second World War. Despite the hardships of wartime and the limitations imposed by rationing, Carolyn was raised in a nurturing environment by parents who instilled in her a deep respect for learning and perseverance. These values would guide her through an exceptional academic and professional life.
As the sole woman at the Royal School of Mines, Carolyn studied metallurgy at Imperial College, where she later earned her PhD, focusing on superconductivity and crystal structures at liquid helium temperatures. Her postdoctoral path led her from industrial research at Martin Marietta Laboratories to academic positions at Columbia University and the State University of New York at Stony Brook, and later to Bell Laboratories in 1976.
Her pivotal shift into corrosion science began in 1980 at the Danish Corrosion Centre, where she worked on a new type of cement and corrosion of steel in concrete. From Denmark to Canada, Professor Hansson continued her research at Queen’s University and later at the University of Waterloo, building an enduring legacy in the field of steel corrosion in concrete structures.
Over the decades, Carolyn’s contributions to corrosion research have shaped and guided generations of engineers and scientists. Her pioneering studies—on electrical resistivity of concrete, quantifying reinforcement corrosion rates, and understanding the complex role of chlorides—remain foundational in the field. Her investigations into corrosion inhibitors, electrochemical chloride extraction, effects of concrete cracking on reinforcement corrosion, and corrosion-resistant steels continue to influence global practices in infrastructure resilience.
This Special Publication celebrates more than 60 years of Professor Hansson’s contributions as a scientist, educator, and mentor. The papers collected here, presented at the 2025 Spring Convention in Toronto, reflect not only the lasting relevance of her work but also its future promise. Her vision stands as both a mirror to the past and a beacon for innovations yet to come in corrosion-resistant construction.
O. Burkan Isgor
David Tepke
Ceki Halmen
Neal Berke
Table of Contents
SP-366-1:
Remarks on the Last Sixty Years of Advancement in Corrosion of Metals in Concrete during Carolyn Hansson’s 60 Year Career 1-14
Authors: David G. Tepke and O. Burkan Isgor
SP-366-2:
50 Shades of Deicers and Anti-icers 15-26
Authors: R. Douglas Hooton and Gustavo Julio-Betancourt
SP-366-3:
Pitting Resistance Equivalent Number (PREN) Applicable to Stainless Steel Rebar in Concrete Environment 27-48
Authors: Mohaddeseh Abdolhosseini and Ibrahim G. Ogunsanya
SP-366-4:
Design Specification for Service Life Evaluation: Technical Implications 49-56
Authors: Jose Pacheco and Kyle Stanish
SP-366-5:
High-Throughput Analysis of the Kinetics of Chloride-Induced Passive Layer Breakdown in Different Carbon Steel Microstructures within Simulated Concrete Pore Solution 57-65
Authors: Gisoo Daviran and Amir Poursaee
SP-366-6:
How concrete corrosion macrocells affect assessment and forecasting 66-87
Authors: Alberto A. Sagüés and Christopher L. Alexander
SP-366-7:
The Effects of Cations on Chloride Ingress and Hydroxide Levels in Concrete 88-101
Authors: Neal Berke, Kyle Stanish, and Ali Inceefe
SP-366-8:
The steel-concrete interface and its impact on corrosion – an updated review and research perspectives 102-110
Authors: Ueli M. Angst and Mette R. Geiker
SP-366-9:
Electrical Resistivity in Air-Entrained, Partially Saturated Industrial Concretes 111-131
Authors: Timothy J. Barrett and W. Jason Weiss
SP-366-10:
Electrochemical Chloride Extraction: Mechanisms & Long-Term Impact 132-140
Author: David Whitmore
SP-366-11:
Service Life of Reinforced Concrete Structures in Coastal Environments 141-155
Authors: Ceki Halmen, David Trejo, Momn Telfah
SP-366-12:
Model for corrosion initiation and propagation based on the resistivity 156-169
Author: Carmen Andrade