Field Application and Maintenance of sidewalk concrete block for PV Power Generation

태양광 발전을 위한 보도형 콘크리트 블록의 현장 적용과 유지관리

  • 김봉균 (동산콘크리트산업(주) 기업부설연구소) ;
  • 김윤용 (충남대학교 토목공학과)
  • Received : 2019.07.05
  • Accepted : 2019.08.19
  • Published : 2019.09.01


In order to fulfill the obligation to voluntarily reduce greenhouse gas emissions under the Paris Climate Agreement, the proportion of coal and nuclear power generation is reduced worldwide and national efforts are being made to spread renewable energy including solar power generation. Korea also intends to increase the proportion of renewable energy generation to 30~35% by 2040 by introducing laws and regulations. In addition, while the country is trying to apply solar power generation to sidewalks and roads, there is no research related to it in Korea. Therefore, as a precedent study to develop solar power generation roads, solar power generation concrete blocks applicable to sidewalks and plazas were developed and the applicability was evaluated by constructing them on the site. As a result of indoor experiment, compressive strength was measured by 25.5~35.7MPa and flexural strength was measured by 5.1~10.5MPa, which showed that all domestic standards were satisfied. However, the higher the unit cement amount, the lower the strength was measured according to the mixing of the broken fine aggregate. The absorption rate was 5.7%, which satisfied the domestic standard of 7% or less. As a result of the freeze-thawing test, the reduction rate of the compressive strength after 100 cycles was up to 6.3%. As a result of measuring the settlement amount after construction, the maximum of 2.498mm was measured and irregular settlement occurred in the overall area, which is because the resolution of the sand layer was poor during construction. Maintenance techniques of sidewalk concrete block and solar panel need to be established more efficiently through long-term operation in the further.


solar power generation;concrete block;sidewalk;field application;maintenance


Supported by : 한국에너지기술평가원(KETEP)


  1. Cho, Y. S. (2018), World Energy Issue insight, Korea Energy Economics Institute, Korea, 18-2, 2-9.
  2. Energy Innovation Policy Division (2019), Third Basic Energy Plan, Ministry of Trade, Industry and Energy, Korea, 54-58.
  3. Kim, C. S. (2018), New & Renewable Energy Statistics 2017, Ministry of Trade, Industry and Energy, Korea, 19,145-146.
  4. Kang. J. H. (2019), 2019 Quarterly Report Solar Industry Trend, The Export-Import Bank of korea, Korea, 17-21.
  5. Yang, Y. S., Lee, S. J., Kim, A. R. (2018), IEA World Energy Outlook 2018, Korea Energy Economics Institute, Korea, 18-43, 14.
  6. Kim. K. H., Park, J. H., Yeon, T. K., Kim, J. T. (2017), A Preliminary Study to Make the Road Sector Ready for the Commercialization of Automated Vehicles : Focusing on Road Design and Planning, Korea Research Institute for Human Settlements, Korea, 49-55.
  7. Lim, W. G., Ryu, S. W., Lee, B. T., Cho, Y. H. (2014), 2019 Performance Evaluation of Interlocking Block Pavement for Low Speed Highway, Journal of the Korean Society of Road Engineers, KSRE., 16(2), 1-2.
  8. Park, H. M., Kim, Y. T., Lee, S. H. (2016), An Analysis on the Nonlinear Behavior of Block Pavements using Multi-Load Level Falling Weight Deflectometer Testing, Journal of the Korean Society of Road Engineers, KSRE., 18(6), 35-40.
  9. Park, D. G., Kim, J. Y., Cho, Y. H. (2018), Types of Block Pavement, Failure and Its Application under Heavy Vehicle Loading, Magazine of the Korea Concrete Institute, KCI., 30(5), 25-35.
  10. Jung, J. S., Park, Y. B., Lee, K. H., Hwang, C. K. (2008), A Study on the Performance Evaluation and the Improvement of the Quality Standard of Block Pavements, Journal of the Korean Society of Road Engineers, KSRE., 10(1), 115-124.
  11. Oh, H. J., Park, J. Y., Sohn, D. S., Han, E. S., Park, D. G. (2019), Performance Evaluation of Block Pavement Using Accelerated Pavement Testing, Journal of the Korean Society of Road Engineers, KSRE., 21(2), 31-37.
  12. Lim, H. K. (2017), A Study on the Traffic Impact of the Limited Speed of Urban Area (5030), Ministry of Land, Infrastructure and Transport, Korea, 3-4.
  13. JIS (2016), Precast unreinforced concrete products, A 5371, Japanese Standards Association.
  14. ASTM (2018), Standard Specification for Solid Concrete Interlocking Paving Units, C936/C936M-18, ASTM International USA.
  15. BS (2003), Concrete paving blocks. Requirements and test methods, EN 1338, The British Standards Institution.
  16. Jo, D. K., Kang, Y. H. (2009), Analysis of Solar Radiation Components for the Installation of Solar Thermal System in Korea, Journal of the Korean Solar Energy Society, KSES., 29(3), 12-18.
  17. Jo, D. K., Yun, C. Y., Kim, K. D., Kang, Y. H. (2011), A Detail Survey of Horizontal Global Radiation and Hours of Bright Sunshine for the Installation of Solar Photovoltaic System in Korea, Journal of the Korean Solar Energy Society, KSES., 31(3), 48-56.
  18. Korea Construction Standards Center (2018), Korean Construction Specification-Concrete block pavement(KCS 44 70 05), Ministry of Land, Infrastructure, and Transport, Korea, 4.