JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Evaluation about Weathering Characteristics of Granite at Sangju Area
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Evaluation about Weathering Characteristics of Granite at Sangju Area
Kang, Changwoo; Kim, Bongsu; Son, Kwangrok; Bae, Wooseok;
  PDF(new window)
 Abstract
The rocks exposed on the surface undergo expedite weathering process due to the effects of climatic process, etc. and the weathering process changes the properties of minerals, thereby lowering the stability of rocks. Therefore, it is important to examine the composition of minerals in order to investigate the resistance of rocks against weathering, which is performed by weathering sensitivity analysis. And microscopic flaking test was performed for the bored samples in this study and the composition of minerals that are vulnerable to weathering was measured through mode analysis. The lithological and mineralogical weathering factors were evaluated through this process. Furthermore, the degree of progress of weathering was identified by quantitatively measuring the actual mineral composition of rocks through X-Ray diffraction analysis and identifying the secondary minerals through observation with a scanning electron microscope. This analyzing the weathering sensitivity was analyzed to be capable of determining appropriate indicators that can determine weather resistance and predicting the weathering grade using chemical weathering speed.
 Keywords
Weathering sensitivity;Mineral contents;X-Ray diffraction;Weathering grade;
 Language
Korean
 Cited by
 References
1.
Bae, W. S., Kim, K. S., Sun, B. I., Lee, B. W. and Ann, B. C. (2010), A case study on weathering sensitivity analysis at sangju area, The proceeding of Korean Society of Civil Engineers, Vol. 2010, pp. 2200-2203 (in Korean).

2.
Baek, H. J. and Kwak, J. C. (2000), Changes in the engineering geological properties of domestic gneisses due to weathering, Journal of the Korean Society for Geosystem Engineering, Vol. 37, No. 4, pp. 262-271 (in Korean).

3.
Crosta, G. (1998), Slake durability vs ultrasonic treatment for rock durability determinations, International Journal of Rock Mechanics and Mining Sciences, Vol. 35, No. 6, pp. 815-824. crossref(new window)

4.
Grim, R. E. (1962), Applied clay mineralogy, Mcgraw-hill, p. 422.

5.
Hudson, M. E. and Langan, S. J. (1999), Considerations of uncertainty in setting critical loads of acidity of soils: the role of weathering rate determination, Environmental Pollution, Vol. 106, pp. 73-81. crossref(new window)

6.
Kang, M. K. (2003), Study on the property of rock slope in masan area based on weathering sensitivity, Chung-Ang University, Master of Science, pp. 1-56 (in Korean).

7.
Nilsson, J. (1986), Critical loads for nitrogen and sulphur, Nordic Council of Ministers, Report 1986: 11, p. 232.

8.
Park, J. Y., Lee, J. S., Bae, S. H., Yu, Y. I., Oh, J. B. and Lee, D. H. (2006), Weathering sensitivity characterization for rock slope, considering time dependent strength changes, Journal of Korean Society for Rock Mechanics, Vol. 16, No. 2, pp. 109-134 (in Korean).

9.
Park, S. S. (2006), Study on the determination of instruments and measutement frequency for rock slope stability by analyzing the weathering sensitivity, Master's thesis, University of Kukmin, pp. 1-62 (in Korean).

10.
Suh, M. C., Kim, M. K. and Choi, S. W. (1994), Weathering characteristics of rocks near churyong tunnel site, kyongbuk, using geophysical and geochemical methods, The journal of Engineering Geology, Vol. 4, No. 3, pp. 269-282 (in Korean).

11.
Um. J. G. (2012), A study of weathering characteristics of cretaceous granite in kimhae area due to artificial weathering process, Tunnel & Underground Space, Vol. 22, No. 1, pp. 32-42 (in Korean). crossref(new window)