Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
권호 표지
DOI QR코드

DOI QR Code

Absorption and Strength Properties of Landscape Paving Concrete According to Zeolite Coarse Aggregate Replacement Rate

제올라이트 굵은골재 대체율에 따른 조경포장 콘크리트의 흡수 및 강도 특성

  • Na, Ok-Pin (R&D Division, Hyundai Engineering & Construction) ;
  • Lee, Gi-Yeol (Department of Landscape Architecture, Chonnam National University)
  • Received : 2021.02.22
  • Accepted : 2021.04.02
  • Published : 2021.04.30
Download PDF
⟨ Previous Next ⟩

Abstract

This study assessed the use of zeolite with high absorption performance in landscape paving concrete as a substitute for aggregate. The absorption performance and strength properties of paving concrete were investigated according to the replacement rate of the zeolite coarse aggregate, and the mechanical properties were investigated through strength tests. The absorption rate of the zeolite aggregate was 14%, which is 2.5 times higher than that of general aggregate. When zeolite coarse aggregate is applied to paving concrete, the absorption rate increases according to the replacement rate. The absorption rate was 5.2% at a replacement rate of 50%, which was 42% higher than that of general paving concrete. The compressive strength increased to 20% of the replacement rate and decreased at a higher replacement, but all the strengths in the construction standard code were satisfied. The flexural strength satisfied the code up to a replacement rate of 10%, but the strength decreased with increasing replacement rate, and the splitting tensile strength was greater than that of paving concrete using general aggregate up to a 20% replacement rate. Overall, zeolite coarse aggregate can be applied as a substitute.

이 논문은 흡수율이 높은 제올라이트를 일반 굵은골재의 대체재로 보도용 조경포장 콘크리트에 적용하기 위한 기초 연구로서, 제올라이트 굵은골재 대체율에 따른 포장 콘크리트의 흡수성능과 강도 특성을 파악하였다. 제올라이트 굵은골재의 흡수율은 약 14%로서 일반 굵은골재와 비교하여 흡수성능이 2.5배 증가하였다. 그리고, 제올라이트 굵은골재를 포장 콘크리트에 혼입하면 굵은골재 대체율에 따라 흡수율이 증가하고, 최대 대체율 50%에서 5.2%로 일반 포장 콘크리트와 비교하여 약 42% 증가하였다. 제올라이트 혼입 포장 콘크리트의 압축강도는 대체율 20%까지 증가한 후 감소하였지만 건설기준코드에서 규정하는 압축강도 기준은 모두 충족하였다. 휨강도는 대체율 10%까지 기준강도를 만족하였으나 대체율에 따라 강도가 감소하였으며, 포장 콘크리트의 균열저항성에 영향을 주는 쪼갬인장강도는 대체율 20%까지 일반 포장 콘크리트의 강도보다 크게 나타났다. 제올라이트 혼입 포장 콘크리트의 흡수성능과 강도 특성에 대한 연구결과로부터 제올라이트 굵은골재를 일반 굵은골재의 대체재로 적용이 가능함을 확인하였다.

Keywords

References

  1. Ministry of Land, Infrastructure and Transport (MOLIT), Sidewalk Pavement Code(KDS 34 60 10), Korean Construction Standards Center, 2016.
  2. J. J. Choi, W. T. Park, "Physical Properties of Permeable Concrete Using Slag as an Aggregate", Journal of the Korea Academia-Industrial cooperation Society, Vol.4, No.4, pp.404-408, 2003.
  3. H. B. Ko, M. Y. Ko, "An Experimental Study on the Basic Properties of Elastic Paving Materials", Journal of the Korea Academia-Industrial cooperation Society, Vol.16, No.7, pp.5021-5028, 2015. DOI: https://dx.doi.org/10.5762/KAIS.2015.16.7.5021
  4. Y. S. Kim, D. U. Lee, "Plastic Shrinkage Cracking Reduction of Press Concrete Using Admixtures in Basement", Journal of the Korea Academia- Industrial cooperation Society, Vol.20, No.11, pp.416-424, 2019. DOI: https://doi.org/10.5762/KAIS.2019.20.11.416
  5. J. S. Park, "Experimental Study on Fatigue Strength of Continuously Reinforced Concrete Pavements with Initial Transverse Cracks", Journal of the Korea Academia-Industrial cooperation Society, Vol.8, No.5, pp.1173-1178, 2007.
  6. J. J. Choi, "A Study on the Properties of Concrete Using Zeolite", Journal of the Korea Concrete Institute, Vol.10, No.5, pp.205-216, 1998.
  7. M. J. Choi, N. K. Sung, S. J. Park, J. A. Lee, H. S. Yun, I. K. Hong, "Water Purification Properties of Porous Zeolite Concrete", Applied Chemistry for Engineering, Vol. 22, No. 3, pp. 332-335, 2011.
  8. C. Y. Lee, Y. C. Kim, J. J. Lee, "Hydration Characteristics of Cement Containing Zeolite", Applied Chemistry for Engineering, Vol. 22, No. 4, pp. 423-428, 2011.
  9. N. Feng, C, Ma, X. Ji, "Natural Zeolite for Preventing Expansion due to Alkali-Aggregate Reaction", Cement Concrete Aggregates, Vol.12, No.2, pp.93-96, 1992. DOI: https://dx.doi.org/10.22636/MKCI.1998.10.5.205
  10. B. W. Jo, J. S. Choi, "An Experimental Study on the Fundamental Properties of Zeolite Concrete", Journal of the Korea Institute for Structural Maintenance and Inspection, Vol.16, No.1, pp.1-8, 2012. DOI:https://dx.doi.org/10.11112/JKSMI.2012.16.1.001
  11. B. W. Jo, S. W. Kang, S. K. Park, J. S. Choi, "A Fundamental Study on the Characteristics of Zeolite Cement Mortar", Journal of the Korea Concrete Institute, Vol.23, No.2, pp.203-209, 2011. DOI: https://dx.doi.org/10.4334/JKCI.2011.23.2.203
  12. Korean Standards Association, Methods of Testing Cements-Determination of Strength(KS L ISO679), Korean Agency for Technology and Standard, 2016.
  13. Societe Nouvelle du Littoral(SNL), Safety data sheet for Siliceous Standard Sand, Sable Normalise CEN, 2020.
  14. Ministry of Land, Transport and Maritime Affairs (MLTM), Guide for Design and Proportioning of Cement Concrete Mixtures for Pavement, Ministry of Land, Transport and Maritime Affairs, 2011.
  15. Korean Standards Association, Flow table for use in tests of hydraulic cement(KS L 5111), Korean Agency for Technology and Standard, 2017.
  16. Korean Standards Association, Testing method for compressive strength of hydraulic cement mortar (KS L 5105), Korean Agency for Technology and Standard, 2017.
  17. Korean Standards Association, Standard Test method for flexural strength of concrete(KS F 2408), Korean Agency for Technology and Standard, 2016.
  18. Korean Standards Association, Standard Test method for Tensile Splitting strength of concrete (KS F 2423), Korean Agency for Technology and Standard, 2016.
  19. Korean Standards Association, Testing Method for Density and Absorption of Coarse Aggregate(KS F 2503), Korean Agency for Technology and Standard, 2016.
  20. K. Semsettin, "The Effect of Zeolite Amount on the Physical and Mechanical Properties of Concrete", International Journal of the Physical Sciences, Vol.6, No.13, pp.3041-3046, 2011. DOI: https://dx.doi.org/10.5897/IJPS10.164