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IPOD Abstract for presentation (Poster or Podium)

Highway Pavements

1666309 - Enhancing Concrete Pavement Sustainability: Local Biochar and Metakaolin Applications

Tuesday, June 18, 2024
9:10 AM - 9:30 AM ET
Room: 218
Abstract: This study investigates a sustainable approach to reduce the carbon footprint of concrete construction by incorporating locally sourced Arundo grass biochar as a partial substitute for Portland cement in concrete pavement. The introduction of biochar serves a dual purpose: mitigating environmental impact and enhancing the concrete's sustainability. To address the potential reduction in compressive strength due to the use of biochar, metakaolin is introduced as a supplementary cementitious material. The study examines the impact of biochar on concrete performance by assessing 7, 28, and 56 days compressive strength, fresh workability (slump), and the rate of water penetration (sorptivity) in 28 days cured samples. By analyzing these key parameters, this research aims to provide valuable insights into the feasibility and effectiveness of using Arundo grass biochar in Portland cement concrete pavement, paving the way for greener and more sustainable construction practices.

Learning Objectives:

Attendees can expect to learn the following from this session:
  • Upon completion, participants will be able to understand the potential benefits of utilizing locally sourced Arundo grass biochar as a partial replacement for Portland cement in concrete pavement.
  • Upon completion, participants will be able to gain insights into the compensatory use of metakaolin to address any reduction in compressive strength resulting from the inclusion of biochar.
  • Upon completion, participants will be equipped to evaluate and interpret key performance metrics, including compressive strength , fresh workability, and the rate of water penetration in 28 days cured samples.