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September 5, 2025Journal of Civil Engineering FrontiersOpen Access

Durability Performance of Corn Cob Ash–Coconut Shell Ash Concrete Exposed to Simulated Oil Refinery Wastewater

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Authors

AUA. UmarUMUmaru Musa

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Overview

This observational analysis shows enhanced concrete durability against sulfuric acid and sodium sulfate in challenging environments, implicating increased sustainability in construction.

Key Points

  • The 15% replacement mix retained over 94% compressive strength after 90 days, indicating strong performance against aggressive chemical exposure.
  • Exposure to 2% sulfuric acid and 5% sodium sulfate led to the lowest mass loss and permeability in the optimal mix, showcasing its durability.
  • Concrete modified with corn cob and coconut shell ash exhibited enhanced microstructural densification, contributing to its resilience.
  • Visual inspections confirmed quantitative results, with the 15% replacement mix maintaining integrity, while higher levels showed deterioration.

Cite This Study

Umar et al. (2025) studied this question.

synapsesocial.com/papers/68bb3a492b87ece8dc9558aehttps://doi.org/10.38094/jocef602118
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Also Consider

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  4. 4Synergistic effect of recycling waste coconut shell ash, metakaolin, and calcined clay as supplementary cementitious material on hardened properties and embodied carbon of high strength concrete2024 · 31 citations
  5. 5Sustainable Concrete Production: Utilizing Cow Dung Ash and Corn Stalk Ash as Eco-Friendly Alternatives2024 · 12 citations