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INVESTIGATION OF THE TEXTURE, PHYSICAL AND MECHANICAL PROPERTIES OF SOME ROCKS USED AS BUILDING STONE

B. Kekec, M. Unal

First published: 2007DOI pendingView metrics

Abstract

Rocks are complex and heterogeneous materials. Their complexity is described depends on their mineralogical constitutions which is characterized based on the features of the rocks such as their fabric and texture. It is considered that the texture is an important parameter to evaluation of the mechanical properties of the rocks. In this study, physical and mechanical properties of 9 different rocks were tested according to standards of International Society of Rock Mechanics (ISRM, 1981). In order to analyze the texture properties of rock samples such as grain size and grain size distribution, petrographical microscope were used. After grain size and grain size distribution of rocks were determined, average grain size index were calculated. In this study, texture, physical and mechanical properties of different rocks were investigated, and the relationships between their texture and physico-mechanical properties were analyzed using statistical method.

Publication details

Title
INVESTIGATION OF THE TEXTURE, PHYSICAL AND MECHANICAL PROPERTIES OF SOME ROCKS USED AS BUILDING STONE
Authors
B. Kekec, M. Unal
Proceedings
7th International Scientific Conference - SGEM2007
Publisher
SGEM Scientific GeoConference
Year
2007
Pages
Not available yet
SWS Citekey
UNAL20072
ISSN
1314-2704
ISBN
954-918181-2
Language
en
Publication type
Conference Paper
References16
  1. , it can be concluded that there is a relation between the texture and the physico-mechanical properties of the rocks. However, it is determined that the texture is more effective on mechanical properties than the physical properties. Some conclusions based on the present data and evaluations are summarized below: y = 11,43x + 35,013 R = 0,888

  2. 1 2 3 4 5 A ve ra g e G ra in S ize In de x (A G S I) 20 40 60 80 100U n i a x i a l C o m p r e s s i v e S t r e n g t h ( M P a ) y = 8,6461x 0,4076 R = 0,828

  3. 1 2 3 4 5 A v e ra g e G ra in S ize In d e x (A G S I) 0 2 4 6 8 10 12 14 16 18I n d i r e c t T e n s i l e S t r e n g t h ( M P a ) y = 2,9506x 0,6641 R = 0,906

  4. 1 2 3 4 5 A v e ra g e G ra in S iz e In d e x (A G S I) 0 2 4 6 8 10T h e P o i n t L o a d S t r e n g t h ( M P a ) (a) (b) (c) It is mentioned that there hasn’t been found any relations between AGSI values vs. density and Shore hardness of samples. When AGSI has been correlated with the mechanical properties of the samples, it has been determined that AGSI is most effective on point loading strength with a good relation. It is determined that there is a relation between AGSI and uniaxial compressive strength. It is determined that there is a relation between AGSI and Indirect tensile strength. It is observed that the AGSI is more effective on mechanical properties than the physical properties of the rock samples. ACKNOWLEDGEMENT This work was financially supported by the Office of Scientific Research (Bu çalışma Selçuk Üniversitesi Bilimsel Araştırma Projeleri Koordinatörlüğü (BAP) tarafından desteklenmiştir). Project number: 2003/122 & 07701059 Selcuk University, Turkey. REFERENCES

  5. Ersoy, A., Waller, M.D., 1995, Textural characterization of rocks, Eng. Geol., 39, p.123.

  6. Howarth, D.F., Rowlands, J.C., 1986, Development of an index to quantify rock texture for qualitative assessment of intact rock properties, Geotech. Test. J., 9, No.4, p.169.

  7. Kekec, B., 2005, Investigation of the texture, physical and mechanical properties of the rocks used as building stone, MSc Thesis, Selcuk University, Graduate School of Natural and Applied Sciences, Konya, Turkey/

  8. Kekec, B. Unal,M and Sensogut. C. 2006, Effect Of The Textural Properties Of Rocks On Their Crushing And Grinding Features, J. of University of Science and Technology Beijing, 5, 13, 385 - 392, 2006

  9. Leiss, B., Ullemeyer, K., Weber, K., 2000, Introduction to the special issue: Textures and physical properties of rocks, J. Struct. Geol., p.1527.

  10. Ozcelik, Y., 2002, Effect of mineralogical and petrographical properties of marble on cutting by diamond wire, CIM Bulleting

  11. Ozturk, A.C., Nasuf, E., 2002, Investigation of textural properties of rocks during different loading conditions, ROCKMEC’2002- VIth Regional Rock Mechanics

  12. Symposium, Konya, p.147.

  13. Ulusay, R., 1989, Pratik Jeoteknik Bilgiler, Teknomad yayınları, Maya Matbaacılık ve Yayıncılık A.Ş., Ankara, 243 s.

  14. Unal, M and Unver, B., 2002, An appraisal of the relationship between discontinuity surface roughness and particle size, ROCKMECH’2002-VIth Regional Rock Mechanics

  15. Symposium, Konya, p.101.

  16. Williams, H. Et al., 1982, Petrography, W. H. Freeman & Company, San Francisco, p. 369

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