연구홍보포털

논문 초록 (Abstract)

Recently, the danger of fine dust has been rising all over the world. Accordingly, measures are needed to reduce harmful substances such as fine dust in the atmosphere. The goal of this study is to evaluate the basic property and hazardous substance adsorption performance of permeable blocks mixed with diatomite. The bending strength and permeable coefficient of the permeable blocks are evaluated in accordance with KS F 4419, the Korean permeable blocks standard, and the adsorption performance of hazardous substances such as fine dust and VOCs is based on the small chamber method proposed by Hanbat University. As a result of reviewing the Flexural strength and compressive strength of the permeable blocks that mixed diatomite, it was confirmed that the higher the mixing rate of diatomite, the lower the bending strength and compressive strength. According to existing literature, the porous properties of diatom absorb a large amount of water, resulting in a lack of moisture needed for cement hardening. Likewise, in this study, as the mixing rate of diatom increased, there was a lack of moisture in the mixing process. Accordingly, Flexural strength and compressive strength are determined to be reduced. As a result of reviewing the adsorption performance of harmful substances in permeable blocks mixed with diatomite, the concentration of fine dust PM10 and PM 2.5, VOCs, NOx, and SOx decreases as the diatomite mixing rate increases. This is believed to be caused by physical adsorption due to porous properties as harmful substances circulate inside the chamber through airflow and come into contact with a permeable blocks that contains diatomite. If the existing permeable blocks are replaced through the results of this study, it will be possible to contribute to improving public health as a solution to air pollution.