26 Dec, 2024
Case Study: Biochar Modified Concrete – Improving Sustainability and Performance
Case Study: Biochar Modified Concrete – Improving Sustainability and Performance
A comprehensive review of biochar-modified concrete: Mechanical performance and microstructural insights
As the demand for urban infrastructure grows, so does the need to reduce greenhouse gas emissions from the construction sector. This review analyzes the potential of biochar as a sustainable, carbon-negative additive in cement-based materials, offering a practical solution to mitigate CO2 emissions.
Key Findings:
- Biochar (BC) enhances the compressive strength of concrete, with 5% BC content identified as the optimal concentration for achieving desired density.
- The study revealed improved tensile strength (1.9 to 4.9 MPa) and flexural strength (2.1
to 8.8 MPa) with varying BC content (up to 10%). - Biochar accelerates the setting time of cementitious materials, contributing to faster
project timelines.
Conclusion:
A comprehensive review of biochar’s integration into cement-based composites highlights its potential to reduce the environmental impact of concrete production. Biocharmodified concrete demonstrates strong mechanical performance, with promising benefits in cost savings, carbon sequestration, and circular economy models. This review provides a foundation for further exploration into biochar’s role in creating more sustainable and efficient building materials.
Impact:
Biochar-modified concrete offers a sustainable alternative for the construction industry, improving both mechanical performance and environmental impact. This technology supports the goal of reducing carbon emissions while enhancing the durability and efficiency of concrete structures.
Source: G. Murali, Leong Sing Wong