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INNOVATIVE USES OF BIOCHAR AS CARBON SEQUESTERING BUILDING MATERIALS IN WALL PLASTER AND PELLETS



Author(s): Harn Wei Kua, May Shuan Ng, Kenny Ong
Paper category: Proceedings
Book title: Proceedings of the 2nd International Conference
on Bio-Based Building Materials
Editor(s): Sofiane AMZIANE, Mohammed SONEBI and Karine CHARLET
ISBN:
e-ISBN: 978-2-35158-192-6
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 595-600
Total Pages: 6
Language : English


Abstract: Biochar has recently been explored as an alternate construction material. While it has been
deployed as road construction, there is an emerging trend of using biochar as concrete
admixture and other non-structural building elements. This study explores the use of biochar as
a component in wall plaster and pellets that are used to fill cavities for interior non-structural wall
panels. Biochar was incorporated in plastering material and the carbon dioxide adsorption
capability of this material mix was compared to that of control samples (made up of pure plaster).
It was found that biochar increased the net carbon dioxide adsorption capability by more than
four times. However, contrary to claims in the literature, we found no evidence that the biochar in
this mixture can significantly remove total volatile organic compounds from the indoor air. In a
separate study, biochar was used to coat pellets that were used to fill cavities in cavity wall. The
biochar was found to increase the net carbon dioxide adsorption capability by about six times
(compared to control samples, which were plaster pellets without biochar coating). There was
also no significant adsorption of total volatile organic compounds. These results indicated clearly
that biochar can be effective as a regulating agent for indoor carbon dioxide level, which is one
of the main determinant factors for the infamous Sick Building Syndrome.


Online publication :2017
Publication type :full_text
Public price (Euros) : 0.00


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