Analysis of the Leeb Hardness Test Data Obtained by Using Two Different Rock Core Holders

Nurdan Güneş Yılmaz; R. Mete Göktan

doi:10.19113/sdufbed.28343

Analysis of the Leeb Hardness Test Data Obtained by Using Two Different Rock Core Holders

Öz

In this study, an investigation was carried out to elucidate if the core holder type affects the measured Leeb hardness values (HL) of rock materials obtained by using the Equotip hardness tester. To achieve this goal, NX-size core specimens of different rock samples were subjected to Leeb hardness testing by employing an ‘Arch-shaped’ and a ‘V-shaped’ core holder. The results indicated a strong degree of linear correlation (R² 0.95) between mean rebound hardness values determined in the arch-shaped holder (HL_A) and V-shaped holder (HL_V). The maximum difference in HL values obtained from the two holders was 74.2 units on the HL-scale, corresponding to a difference of 10.2 %. Although the differences in magnitudes of HL_A and HL_V values were small and varied from one rock variety to another, there was a tendency of the V-shaped holder to give relatively lower values. On the other hand, when compared to the minimum values, a higher statistical correspondence was observed between maximum HL_A and HL_V values. The results also showed that it is possible to predict uniaxial compressive strength of the tested rocks reliably by employing any of the holders.

Anahtar Kelimeler

Core holder,Equotip hardness tester; Leeb hardness; Uniaxial compressive strength; Rebound hardness

Kaynakça

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[3] Wilhelm, K., Viles, H., Burke, O. 2016. Low impact surface hardness testing (Equotip) on porous surfaces – advances in methodology with implications for rock weathering and stone deterioration research. Earth Surface Processes and Landforms 41, 1027-1038.
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[6] Hack, HRGK., Hıngıra, J., Verwaal, W. 1993. Determination of discontinuity wall strength by Equotip and ball rebound tests. International Journal of Rock Mechanics and Mining Sciences & Geomechanical Abstracts 30, 151-155.
[7] Verwaal, W., Mulder, A. 1993. Estimating rock strength with the Equotip hardness tester. International Journal of Rock Mechanics and Mining Sciences & Geomechanical Abstracts 30: 659-662.
[8] Alvarez Grima, M., Babuska, R. 1999. Fuzzy model for the prediction of unconfined compressive strength of rock samples. International Journal of Rock Mechanics and Mining Sciences 36, 339-349.

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[16] Gunes Yılmaz N, Goktan RM, Onargan T. 2015. The influence of Leeb hardness testing procedures on uniaxial compressive strength prediction of some selected decorative stones. Proceedings of the XIII National Conference With International Participation of the Open and Underwater Mining of Minerals. 1-5 September, Varna, Bulgaria.
[17] Gunsallus KL., Kulhawy, FH., O’Rourke, TD. 1984. Evaluation of Schmidt hammer rebound hardness test holders. Geotechnical Testing Journal 7, 164-166.
[18] Gunes Yilmaz, N., Goktan, RM., Yavuz, AB., Karaca, Z. 2016. Influence of rock cradle block geometry on rebound hardness. Bulletin of Engineering Geology and the Environment 75, 325-339.
[19] Turkish Standard TS EN 1936 (March 2001) Natural stone test methods-Determination of real density and apparent density, and of total and open porosity.
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Ayrıntılar

Birincil Dil

Türkçe

Konular

-

Bölüm

-

Yazarlar

Nurdan Güneş Yılmaz

R. Mete Göktan Bu kişi benim

Yayımlanma Tarihi

1 Mart 2018

Gönderilme Tarihi

29 Mayıs 2017

Kabul Tarihi

-

Yayımlandığı Sayı

Yıl 2018 Cilt: 22 Sayı: 1

DOI

https://doi.org/10.19113/sdufbed.28343

IZ

https://izlik.org/JA75LA78DS

Kaynak Göster

RIS / Bibtex

APA

Güneş Yılmaz, N., & Göktan, R. M. (2018). Analysis of the Leeb Hardness Test Data Obtained by Using Two Different Rock Core Holders. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 22(1), 24-31. https://doi.org/10.19113/sdufbed.28343

AMA

1.Güneş Yılmaz N, Göktan RM. Analysis of the Leeb Hardness Test Data Obtained by Using Two Different Rock Core Holders. Süleyman Demirel Üniv. Fen Bilim. Enst. Derg. 2018;22(1):24-31. doi:10.19113/sdufbed.28343

Chicago

Güneş Yılmaz, Nurdan, ve R. Mete Göktan. 2018. “Analysis of the Leeb Hardness Test Data Obtained by Using Two Different Rock Core Holders”. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi 22 (1): 24-31. https://doi.org/10.19113/sdufbed.28343.

EndNote

Güneş Yılmaz N, Göktan RM (01 Nisan 2018) Analysis of the Leeb Hardness Test Data Obtained by Using Two Different Rock Core Holders. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi 22 1 24–31.

IEEE

[1]N. Güneş Yılmaz ve R. M. Göktan, “Analysis of the Leeb Hardness Test Data Obtained by Using Two Different Rock Core Holders”, Süleyman Demirel Üniv. Fen Bilim. Enst. Derg., c. 22, sy 1, ss. 24–31, Nis. 2018, doi: 10.19113/sdufbed.28343.

ISNAD

Güneş Yılmaz, Nurdan - Göktan, R. Mete. “Analysis of the Leeb Hardness Test Data Obtained by Using Two Different Rock Core Holders”. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi 22/1 (01 Nisan 2018): 24-31. https://doi.org/10.19113/sdufbed.28343.

JAMA

1.Güneş Yılmaz N, Göktan RM. Analysis of the Leeb Hardness Test Data Obtained by Using Two Different Rock Core Holders. Süleyman Demirel Üniv. Fen Bilim. Enst. Derg. 2018;22:24–31.

MLA

Güneş Yılmaz, Nurdan, ve R. Mete Göktan. “Analysis of the Leeb Hardness Test Data Obtained by Using Two Different Rock Core Holders”. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, c. 22, sy 1, Nisan 2018, ss. 24-31, doi:10.19113/sdufbed.28343.

Vancouver

1.Nurdan Güneş Yılmaz, R. Mete Göktan. Analysis of the Leeb Hardness Test Data Obtained by Using Two Different Rock Core Holders. Süleyman Demirel Üniv. Fen Bilim. Enst. Derg. 01 Nisan 2018;22(1):24-31. doi:10.19113/sdufbed.28343

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Analysis of the Leeb Hardness Test Data Obtained by Using Two Different Rock Core Holders

Analysis of the Leeb Hardness Test Data Obtained by Using Two Different Rock Core Holders

Öz

Anahtar Kelimeler

Kaynakça

Ayrıntılar

Birincil Dil

Konular

Bölüm

Yazarlar

Yayımlanma Tarihi

Gönderilme Tarihi

Kabul Tarihi

Yayımlandığı Sayı

DOI

IZ

Kaynak Göster

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