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http://dx.doi.org/10.14190/JRCR.2022.10.4.428

Effect of Concrete Containing the Biochar on Properties and Thermal Insulation Performance  

Kyoung-Chul, Kim (Korea Institute of Construction Technology)
Kyung-Taek, Koh (Korea Institute of Construction Technology)
Min-Su, Son (Korea Institute of Construction Technology)
Gum-Sung, Ryu (Korea Institute of Construction Technology)
Jae-Yoon, Kang (Korea Institute of Construction Technology)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.10, no.4, 2022 , pp. 428-434 More about this Journal
Abstract
This study intends to develop an eco-friendly concrete panel mixed with biochars. Experiments about mechanical and thermal properties were conducted on porous biochar concrete, which has insulation and carbon-capture performance. The concrete has a mixing ratio of 0, 5, 10, and 15 % for biochar and a water-binder ratio of 0.35. The unit weight, porosity, and permeability were measured to evaluate the mechanical characteristics. From the results, as the biochar mixing rate increased, the porosity and the permeability increased, but the unit weight decreased. Even though a decreased trend was observed in the compressive strength results, they satisfied the design standard. Since the thermal conductivity was decreased during the increase of contents, biochar could be considered an excellent material for insulation performance. In addition, regression analyses were conducted regarding the relationship of unit weight with porosity, compressive strength with thermal conductivity, and porous with thermal conductivity. From the regression, significant variables for expanding the scope of the application of biochar were presented.
Keywords
Biochar; Thermal insulation performance; Porous concrete; Concrete panel;
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Times Cited By KSCI : 1  (Citation Analysis)
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