Annals of Civil Engineering and Management(ACEM)

Department of Chemical Engineering, Dalhousie University, Canada

Publications

• Review Article   
  Adaptive Mineralized Biochar Networks for Self-Healing Carbon-Negative Concrete in Coastal Infrastructure Systems
  Author(s): Chinenye Elizabeth Onumadu*
  
  Introduction: Coastal concrete infrastructure faces accelerated degradation due to chloride-induced corrosion, cracking, and cyclic wet-dry exposure, leading to premature structural failure and exorbitant maintenance costs. Concurrently, cement production—a cornerstone of concrete—accounts for ~8% of global CO2 emissions, exacerbating climate change. While self-healing concrete technologies (e.g., bacterial calcite precipitation, encapsulated polymers) have emerged to mitigate cracking, they lack CO2 storage capabilities and perform poorly in high-salinity marine environments, leaving a critical gap in sustainable coastal construction. This study introduces adaptive mineralized biochar networks (AMBNs) as a multifunctional solution to these challenges. AMBNs were engineered by pyrolyzing rice husk biomass at 700°C, followed by CO2 activation and impreg.. Read More»
  

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