In a significant advancement for the construction industry, researchers have unveiled an eco-friendly solution to combat the persistent problem of corrosion in low-carbon steel. This innovative approach, led by Mariia-Olena Danyliak from the Karpenko Physico-Mechanical Institute of the NAS of Ukraine, harnesses the natural properties of gum arabic and sodium citrate to create a protective barrier against corrosive elements.
Corrosion is a major concern in construction, leading to structural failures and costly repairs. The new composition, developed for use in neutral environments, showcases impressive inhibitory properties when tested in a 0.1% sodium chloride solution. Danyliak’s study, published in the journal ‘Advances in Materials Science and Engineering,’ reveals that the combination of gum arabic and sodium citrate not only enhances the steel’s resistance to corrosion but does so in an environmentally friendly manner.
“The protective effect of our composition is significantly influenced by the interaction between the two compounds, which possess hydroxyl and carboxyl functional groups,” Danyliak explains. The research highlights that as the concentration of the protective agents increases, so does their effectiveness, peaking at 2.0 g/L. This finding is particularly promising for the construction sector, which is increasingly seeking sustainable materials and methods.
Through electrochemical and weight loss methods, the study demonstrated that after 24 hours of immersion, the corrosion rate was remarkably low, at just 0.42·10−5 g/cm²·h, with an impressive inhibitory efficiency of 80.4%. This level of protection could lead to longer-lasting structures and reduced maintenance costs, a boon for construction companies striving to improve their bottom line while adhering to environmental standards.
The research also delves into the mechanics of how this protective film forms on the steel surface, suggesting that it may occur through a chelation process that effectively blocks the access of harmful chloride ions. This innovative approach not only addresses the immediate challenges posed by corrosion but also aligns with the industry’s growing emphasis on sustainability and eco-conscious practices.
As the construction sector grapples with the dual pressures of performance and environmental responsibility, Danyliak’s findings could pave the way for new standards in material protection. “Our work demonstrates that we can leverage natural compounds to enhance the durability of essential construction materials,” she asserts. This research marks a pivotal step towards integrating greener solutions in the construction industry, potentially reshaping how future projects are designed and executed.
With ongoing developments in eco-friendly materials, the construction industry may soon see a shift towards more sustainable practices that not only protect infrastructure but also contribute to a healthier planet. The implications of this research extend beyond just corrosion prevention; they underscore a broader trend of innovation and responsibility in construction materials science.
