Technical Papers
Apr 11, 2017

Factors Determining the Potential of Biochar As a Carbon Capturing and Sequestering Construction Material: Critical Review

Publication: Journal of Materials in Civil Engineering
Volume 29, Issue 9

Abstract

Biochar is relatively well understood as a soil enhancement. Recently, it has been explored as a construction material. While works had been conducted on deploying biochar for road construction, there is an emerging trend of using biochar as concrete admixture. In comparison, using biochar this way will reduce more greenhouse gas emissions than if carbon is captured and sequestered through mineralization and deployment in construction. The use of biochar-containing construction materials to capture and then lock atmospheric carbon dioxide in buildings and structures can potentially reduce greenhouse gas emissions by an additional 25%. In this review, attention was focused on evaluating biochar’s capability for carbon adsorption, which depends on factors such as pyrolysis conditions (specifically, pyrolysis temperature, heating rate, and pressure) and activation methods (and without surface modification). Gaps in the current literature were identified and important areas for future research proposed.

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Journal of Materials in Civil Engineering
Volume 29Issue 9September 2017

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Received: Apr 13, 2016
Accepted: Dec 29, 2016
Published ahead of print: Apr 11, 2017
Published online: Apr 12, 2017
Published in print: Sep 1, 2017
Discussion open until: Sep 12, 2017

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Souradeep Gupta [email protected]
Doctoral Researcher, Dept. of Building, School of Design and Environment, National Univ. of Singapore, 4 Architecture Dr., (S)117566, Singapore 119077 (corresponding author). E-mail: [email protected]
Harn Wei Kua
Associate Professor, Dept. of Building, School of Design and Environment, National Univ. of Singapore, 4 Architecture Dr., (S)117566, Singapore 119077.

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