All Issue

2019 Vol.18, Issue 1 Preview Page

Research Article

Experimental Study on Reducing Effect for Surface Temperature of Recycled Synthetic-Resin Permeable Block

재생 합성수지 투수블록의 표면온도 저감효과에 관한 실험적 연구

Chul-Hee Lee1
,
Arum Lee2
,
Eun-Chul Shin3*
,
Byung-Hyun Ryu4
이 철희1
,
이 아름2
,
신 은철3*
,
유 병현4
1Member, Graduate Student, Dept. of Civil and Environmental Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
2Nonmember, Graduate Student, Dept. of Civil and Environmental Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
3Member, Professor, Dept. of Civil and Environmental Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
4Nonmember, Senior Researcher, Korea Institute of Civil Engineering and Building Technology, 283 Goyang-daero, Ilsanseo-gu, Goyang-si, Gyeonggi-do 10223, Republic of Korea
* Corresponding Author
30 March 2019. pp. 79-89
PDF XML Citation
Abstract

본 연구는 기존의 콘크리트 투수블록이 아닌 재활용 합성수지를 활용하여 제작된 투수블록의 열섬현상 완화의 기능성 측면인 표면온도의 저감효과를 확인하고자 야외계측과 실내실험을 진행하였다. 야외계측은 건조한 상태와 습윤상태를 고려하여 3일 동안 계측하였고, 실내실험은 건조 조건, 강우 모사 조건, 표층 습윤 조건 등으로 구분하여 온도의 변화와 실험 후 함수율의 증발비율을 확인하였다. 야외계측 결과, 가뭄이 지속되거나 일정수준의 수분이 표층에 없는 건조한 상태에서는 수분의 증발에 의한 기화잠열로 냉각효과가 발휘되기 보다는 투수블록 표면의 알베도에 의한 차이로 표면의 온도가 감소하는 것을 확인하였다. 실내실험 결과, 재생 합성수지 투수블록(RS 투수블록)은 콘크리트 투수블록보다 건조한 상태일때는 더 높은 표면온도를 기록하였으나 강우 모사조건에서는 공극내 수분의 증발이 모세관력에 의해 지속적으로 유지되어 더 높은 온도 저감율 보이는 것으로 나타났다. 실내실험 후 증발율을 측정한 결과 수분의 증발율이 높을수록 온도의 저감효과는 증가하는 것을 확인하였다. 이 결과를 바탕으로 증발율과 온도의 저감율에 대한 상관관계식을 도출하였다.

The field measurement and laboratory experiment were conducted to investigate the effect of reducing the surface temperature of the functional aspect of the heat island phenomenon of the permeable block which is made the recycled synthetic resin rather than the existing concrete permeable block. Field measurement was taken for 3 days in consideration of dry condition and wet condition and laboratory experiment was divided into dry condition, rainfall simulating condition, and wetting condition. The variations of temperature and the evaporation rate of water moisture content after experiment were confirmed. As a result of field measurement, it is confirmed that the surface temperature decreases due to the difference in albedo of the pore block surface rather than the cooling effect due to the latent heat of vaporization. The evaporation of moisture in a dry state where drought persisted or a certain level of moisture was not maintained in the surface layer. As a result of laboratory experiment, resin permeable block gives higher surface temperature when it is dry condition than concrete permeable block, but the evaporation of water in the pore is kept constant by capillary force in rainfall simulation condition, and higher temperature reduction rate. As a result of measuring the evaporation rate after laboratory experiment, it is confirmed that the effect of reducing temperature is increased as the evaporation rate of water is higher. Based on these results, correlation formula for evaporation rate and temperature reduction rate is derived.

Keywords
Permeable block
Recycle synthetic resin
Heat island
Vaporization
Decrease temperature

References
1
Ban, S. S. (1999), An Experimental Study on the Permeability and Engineering Properties of Porous Concrete, Master Degree Thesis, Chungnam National University.
2
Hong, C. W. (2013), ";Properties of Temperature Reduction of Cooling Asphalt Pavements Using High-Reflectivity Paints";, Journal of the korean Society of Civil Engineers, Vol.33, No.1, pp.317-327.
10.12652/Ksce.2013.33.1.317
3
Japan Concrete Institute (1995), Technical committee in ECO concrete, Japan Concrete Institute, pp.56-58, Japan.
4
Jung, H. S. (2010), Development of Environmental-friendly Water permeability Block and Performance Evaluation, Master Degree Thesis, Hanbat National University.
5
Kim, C. M. (2011), ";Cool Pavement System for Decrease urban Heat Island Effect in the USA";, Monthly KOTI Magazine on Transport, Vol.8, pp.85-88.
6
Kim, I. S., Han, E. S., Park, D. G. and Cho, S. H. (2006), ";A Study on the Surface Temperature Reduction of Thermal Insulation Ahphalt Pavement";, Korean Society of Road Engineers, pp.71-74.
7
Lee, D. W., Yun, J. M., Kim, N. S. and Kang, Y. M. (2011), ";The Mechanics Properties of Porous Concrete using Recycled Asphalt Aggregate";, Journal of Korean Geosynthetics Society, Vol.10, No.1, pp.37-42.
8
Lee, S. W. (2009), A Study to Mitigate Urban Heat Island According to the Improvement of Pavement of Road, Ph.D Thesis, Keimyung University.
9
Park, D. G., Jung, W. K., Jung, D. W., Baek, J. E and Lee, J. W., (2016), ";Evaluation of Field Permeability and Material Characteristics of Permeable Block for Roadway Pavement";, Korean Society of Ecology and Infrastructure Engineering, Vol.3, No.2, pp.110-116.
10
Park, T. S., Jeon, M. S., Cheon J. Y. and Chung, P. G. (2009), ";Evaluation of Solar Light Reflective Coating";, Korean Society of Road Engineers, pp.29-34.
11
Ryu, B. H. and Kim, T. H. (2018), ";Evaluation of Permeable block using Recycle Synthetic Resin";, Korean Geosynthetics Society, Vol.17, No.1, pp.13-19.
12
Seo, D. W. and Yun, T. S. (2016), ";Effect of Bedding Layer and Clogging on Drainage Capacity of Pervious Sidewalk Block in Unsaturated Condition";, Journal of the Korean Geotechnical Society, Vol.32, No.5, pp.37-48.
10.7843/kgs.2016.32.5.37
13
SMG. (2013), Standard for Design, Construction, and Maintenance of Pavement Using Permeable Block. Seoul Metropolitan Government, Seoul, Korea.
14
So, K. R. (2011), Performance Evaluation of Solar Radiation Pavement Using Acryl Resin, Master Degree Thesis, Sejong University.
15
You. S. K., Yu, N. J., Cho, S. M. and Shim, N. B. (2007), ";Mechanics Characteristics of Porous Concrete using Recycled- Aggregate";, Journal of Korean Geosynthetics Society, Vol.6, No.2, pp.17-20.
Information
  • Publisher :Korean Geosythetics Society
  • Publisher(Ko) :한국지반신소재학회
  • Journal Title :Journal of the Korean Geosynthetics Society
  • Journal Title(Ko) :한국지반신소재학회 논문집
  • Volume : 18
  • No :1
  • Pages :79-89
  • Received Date : 2018-10-25
  • Revised Date : 2019-03-15
  • Accepted Date : 2019-03-20
  • DOI :https://doi.org/10.12814/jkgss.2019.18.1.079
Journal Informaiton Journal of the Korean Geosynthetics Society Journal of the Korean Geosynthetics Society
  • NRF
  • KOFST
  • KISTI Current Status
  • KISTI Cited-by
  • crosscheck
  • orcid
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close