Adequacy Study of Biochar as Green Roof Material Using a Rainfall Simulator

Jaehyuck Choi; Soo-Jeong Shin; Byung-Ro Kim

doi:10.7584/JKTAPPI.2016.12.48.6.165

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Adequacy Study of Biochar as Green Roof Material Using a Rainfall Simulator 인공강우기를 이용한 바이오 숯의 그린루프 재료 적합성 연구

30 December 2016. pp. 165-173

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Abstract

A rainfall simulator is developed to evaluate the adequacy of biochar (Korean traditional charcoals) as a content of green roof substrate. Three different sets of rainfall intensity and rainfall duration (10 minute test with 240 rainfall intensity, 1 hour test with 70 rainfall intensity, 1 day test with 29.8 rainfall intensity) are applied to collect data such as moisture content, amount of adsorbed water, and amount of evaporation. All charcoals quickly absorb rainwater and keep absorbing in a different way. Mechanical charcoal (MC) and traditional black charcoal (TBC) 3 have better absorbing abilities than other charcoals. All charcoals evaporate all the moisture within 3 to 7 days. MC adsorbs 146.3% of water in a one day test and evaporates for 7 days. MC is also the lightest. Even though results of test show various degrees, MC is the best charcoal as green roof content and other five charcoals also have valuable abilities as well.

Keywords

Biochar

green roof

traditional charcoal

moisture content

adsorbed water

evaporation

References

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Information

Publisher :Korea Technical Association of The Pulp and Paper Industry
Publisher(Ko) :한국펄프종이공학회
Journal Title :Journal of Korea TAPPI
Journal Title(Ko) :펄프종이기술
Volume : 48
No :6
Pages :165-173
Received Date : 2016-11-07
Revised Date : 2016-12-16
Accepted Date : 2016-12-19
DOI :https://doi.org/10.7584/JKTAPPI.2016.12.48.6.165

Journal of Korea TAPPI ISSN:0253-3200(Print) 펄프종이기술

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