|
Title |
Evaluation of Fundamental Properties and Formaldehyde Reduction Capacity of Concrete Mixed with Phytoncide
|
|
Authors |
김일순(Il-Sun Kim) ; 최소영(So-Yeong Choi) ; 최윤석(Yoon-Suk Choi) ; 양은익(Eun-Ik Yang) |
|
DOI |
https://doi.org/10.4334/JKCI.2021.33.5.531 |
|
Keywords |
콘크리트; 모르타르; 피톤치드; 폼알데하이드 농도; 기초물성 concrete; mortar; phytoncide; formaldehyde concentration; fundamental properties |
|
Abstract |
Formaldehyde and other volatile organic compounds present a significant threat to human health and are the primary contributors to indoor air pollution. In this study, the impact of enhancing the quality and fundamental properties of indoor air was tested through measuring the workability, compressive strength, and variation of formaldehyde concentration of mortar and concrete mixed with phytoncide. The test results showed that, with an increase in the phytoncide substitution ratio, there was no significant change in the mortar’s flow value and only a slight increase in concrete slump. Moreover, the more the phytoncide substitution ratio increased, the higher the tendency was for the concrete compressive strength to increase and the formaldehyde concentration to reduce. It was determined that the incorporation of phytoncide and the effect of the actual water-to-binder ratio enhanced workability which then increased the compressive strength. In concrete, when phytoncide was mixed at more than 4 %, the concentration reduction rate was 65.4 % higher than that of the reference mix (Ref.). After examining the effect of improving the fundamental properties and quality of the indoor air of mortar and concrete, the optimal phytoncide substitution ratio was determined to be 4 %. It was confirmed that the substitution of phytoncide at an appropriate level did not have an adverse effect on workability and compressive strength and effectively reduced formaldehyde concentration.
|