Assessment of the Impact of Chlorides and Freeze - Thaw Cycles on the Reinforcement Corrosion Process in Concrete With Blast - Furnace Slag Cement
Year: 2026
Type: article
Abstract: Over recent years, the construction sector has seen intensive development of concrete with a reduced carbon footprint, resulting from the need to reduce CO₂ emissions into the atmosphere. One of the solutions to reduce CO₂ emissions is the use of metallurgical cements in concrete, including CEM III cement, which contains granulated blast furnace slag. Changing the composition of the binder (despite the technological advantages and positive impact on ecology) may affect the level of durability of reinforced concrete structure elements operated in aggressive environmental conditions. The influence of the cement used on the change in the level of durability of reinforced concrete elements, understood as the development of corrosion on steel reinforcement bars, results from the protective role of the concrete cover in relation to the reinforcement bars. The article describes research aimed at assessing the impact of environmental factors such as the action of chloride ions and freezing and thawing cycles on the corrosion rate of steel reinforcement bars in samples made of concrete based on CEM III cement containing granulated blast furnace slag. The corrosion rate of the reinforcement was measured using the non - destructive, electrochemical galvanostatic pulse method. Additionally, selected physical and mechanical properties of concrete were tested, including compressive strength, water absorption, frost resistance and shrinkage. The obtained results allowed for the assessment of the impact of environmental conditions on the corrosion rate of steel reinforcement bars in concrete with blast-furnace slag cement and for the identification of environments most conducive to the initiation and development of corrosion. The research carried out is only part of a broader research program carried out as part of the doctoral thesis, aimed at assessing the durability of reinforced concrete elements made of concrete with a reduced carbon footprint.
Source: Inżynieria Mineralna
Institution: Kielce University of Technology
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7225236240