Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
권호 표지
DOI QR코드

DOI QR Code

An Experimental Study on the Assessment Method of Weathered Clay Fine Particles of Under 0.08 mm Contained in Fine Aggregates

잔골재 중 0.08 mm 이하 풍화된 점토성 미세입자의 평가방법에 대한 실험적 연구

  • Received : 2022.09.20
  • Accepted : 2022.12.22
  • Published : 2023.01.30
⟨ Previous Next ⟩

Abstract

If aggregate containing a large amount of weathered clay fine particles was used as material for concrete, the quality performance of the concrete would deteriorate. Nevertheless, there is no method for assessing weathered clay fine particles in Korea. Therefore, the purpose of this study is to examine a method for assessing weathered clay fine particles contained in fine aggregate for concrete. As an assessment method, the 0.08 mm sieve passing amount method was verified, and the suitability and possibility for the assessment method of X-ray fluorescence (XRF) and methylene blue shared as a chemical method was confirmed. As a result, the 0.08 mm sieve passing amount method was somewhat limited because it couldn't analyze these components in principle. On the other hand, it was possible to assess the weathered clay fine particles by a chemical reaction method using methylene blue or a method of analyzing components using XRF. In addition, since the XRF method can quantitatively analyze these components, it is considered that the measurement deviation can be minimized and effective assessment is possible.

Keywords

References

  1. British Standards. (2013). BS EN 933-9 Tests for geometrical properties of aggregates - part 9: assessment of fines - methylene blue test.
  2. Han, M. C., & Choi, H. K. (2022). Experimental Study on the Proposal of an Assessment Method and Quality Standard for Identifying the Fine Particles of Clay Components in Fine Aggregates. Journal of the Korea Institute of Building Construction. 22(6), 585-596. https://doi.org/10.5345/JKIBC.2022.22.6.585
  3. Han H. S., Kim Y. R., Lee T. G., Lee D. G., & Son H. J. (2019). Fundamental properties of concrete corresponding to fine aggregate with high silty soil. Journal of the Korea Concrete Institute. 33(2), 349-350.
  4. Korean Agency for Technology and Standards. (2017). KS F 2511 Testing method for amount of material finer than 0.08mm sieve in aggregate. https://www.standard.go.kr
  5. Kwon, H. J., Park, J. B., Song, Y. U., & Lee, Y. S. (2021). Soil mechanics. 15-16, 43-45
  6. Lee, J. M., Park, M. Y., & Hong, J. H. (2021). Proposal of analysis method for aggregate soil contained in aggregate fines. Journal of the Korea Concrete Institute. 33(1), 301-302.
  7. Ministry of Land. (2021). 2022 aggregate supply and demand plan. https://www.molit.go.kr
  8. Park, M. Y., Hong, J. H., Choi, H. K., & Lee, J. M. (2021). Suggestion of aggregate soil decision and evaluation test method for improving concrete quality and securing structure stability. Journal of the Korea Concrete Institute. 33(2), 375-376.
  9. Park, M. Y., & Park, K. T. (2020). The problems and solution method of aggregates clay. Journal of the Korea Concrete Institute, 32(4), 21-27.
  10. Park, M. Y., Seo, K. H., Baek, H. S., Hong, J. H., & Park, K. T. (2017). Experimental study on physical properties of concrete on containing soil of aggregates. Journal of the Korea Concrete Institute. 29(1), 77-78. https://doi.org/10.4334/JKCI.2017.29.1.077
  11. Park, M. Y., Seo, K. H., Baek, H. S., Lee, J. M., Park, K. T., & Park, J. H. (2018). A Evaluation of fine particles of aggregates and examination of experimental method based on methylene blue test. Journal of the Korea Concrete Institute. 30(1), 187-188.