The Investigation of the Effect of Integral Waterproofing Admixture on Mitigating Corrosion Damage of Steel Reinforcement in Concrete

Abstract:

Corrosion is one of the factors that affects a material's workability, particularly when water is present. In this study, integral waterproofing admixtures were incorporated into reinforced concrete to reduce the rate of corrosion in steel bars. The study looks at the relationship between different percentages of waterproofing admixture, reinforced concrete workability, compressive strength, reinforcement corrosion level, water permeability, and crack width. These parameters aided in determining the effectiveness of the waterproofing admixture. The methodology for the study includes a variety of tests, including slump test, compressive strength test, impressed voltage test, and rapid chloride permeability test. All concrete samples with waterproofing passed slump tests, with compressive strengths ranging from 24-29 MPa, meeting or exceeding the target strength of 28 MPa. Chloride ion penetration exhibited a nonlinear trend, with reduced penetration observed at the highest and lowest admixture levels, most likely due to increased compaction. Corrosion resistance improved with increasing admixture levels, as samples with the highest percentages lost the least mass. The waterproofing addition also prevented cracking, which increased the concrete lifespan and reduced maintenance expenses. Linear regression indicated that increasing waterproofing content improves compressive strength, reduces water permeability, and enhances overall performance, making it sustainable and resilient.

• Periodical: Advances in Science and Technology (Volume 180)
• Pages: 169-175
• DOI: https://doi.org/10.4028/p-NNw2uS
• Online since: July 2026
• Authors: Louigi T. Advincula, Eric T. Aranas, Rocellie Rianne M. Castillo, Andrea Nicole M. Lucero, Jon Arnel S. Telan*
• Keywords: Accelerated Corrosion, Integral Waterproofing Admixture, Rebar Mass Loss

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