Bazalt Fiber ile Takviye Edilen Killerin Sıkıştırılabilirliği Üzerine Deneysel Bir Çalışma

Öz

Geleneksel zemin iyileştirme yöntemlerine alternatif olarak ortaya çıkan ve farklı türdeki fiberler kullanılarak yapılan zemin güçlendirme çalışmalarında bazalt fiber kullanımı oldukça yaygın hale gelmiştir. Hammaddesi bazalt kayası olan bazalt fiber, yüksek dayanımlı, ekonomik, çevre dostu, doğal ve bol miktarda bulunması gibi özelliklerinden dolayı zemin güçlendirme çalışmalarında tercih edilmektedir. Bu çalışmada bazalt fiber takviyesinin yüksek plastisiteli bentonit kilinin sıkıştırılabilirliğine olan etkileri incelenmiştir. Bentonit kiline 24 mm uzunluğunda ve %0.5 ile %5.0 arasında farklı oranlarda bazalt fiber takviyesi yapılmış ve bu karışımlarda standard proktor deneyleri gerçekleştirilmiştir. Deneysel çalışmalar ile maksimum kuru yoğunluk (γdmax) ve optimum su içeriği (Ꞷopt) değerleri belirlenmiş ve bazalt fiber takviyesinin bu parametrelere olan etkileri değerlendirilmiştir. Deney sonuçlarına göre, %2.5 bazalt fiber takviye oranına kadar γdmax değerleri artmakta iken, Ꞷopt değerleri ise azalmıştır. Bazalt fiber oranının %2.5’dan daha fazla olduğu örneklerde ise γdmax değerleri azalmış, Ꞷopt değerleri ise artış göstermiştir. Elde edilen sonuçlar, bentonitin en iyi sıkıştırılabildiği bazalt fiber oranının %2.5 olduğunu ve bu orandan daha büyük oranlardaki bazalt fiber takviyesinin sıkıştırılabilirliği olumsuz yönde etkilediğini göstermiştir.

Anahtar Kelimeler

• Bazalt fiber
• Bentonit kili
• Güçlendirme
• Sıkıştırabilirlik

An Experimental Study on the Compressibility of Clays Reinforced with Basalt Fiber

Öz

The use of basalt fiber has become quite common in soil reinforcement works, which emerged as an alternative to traditional soil improvement methods and are carried out using different types of fibers. Basalt fiber, whose raw material is basalt rock, is preferred in soil reinforcement works due to its features such as high strength, economical, environmentally friendly, natural and abundant. In this study, the effects of basalt fiber reinforcement on the compressibility of high plasticity bentonite clay were examined. Bentonite clay was reinforced with 24 mm long basalt fiber at different rates between 0.5% and 5.0%, and standard proctor tests were carried out on these mixtures. With experimental studies, maximum dry density (γdmax) and optimum water content (Ꞷopt) values were determined and the effects of basalt fiber reinforcement on these parameters were evaluated. According to the test results, while γdmax values increased up to 2.5% basalt fiber reinforcement ratio, Ꞷopt values decreased. In samples with basalt fiber ratio greater than 2.5%, γdmax values decreased and Ꞷopt values increased. The results obtained showed that the basalt fiber ratio at which bentonite can be compressed best is 2.5%, and basalt fiber reinforcement at rates greater than this ratio negatively affects the compressibility.

Anahtar Kelimeler

• Basalt fiber
• Bentonite clay
• Reinforcement
• Compressibility

Kaynakça

1. Ö. Ekincioğlu, “Mechanical behavior of cement based composites reinforced with hybrid fibres-an optimum design”, Istanbul Technical University Institute of Science and Technology, 2003.
2. D. Asi, “Cam elyaf katkılı kompozit malzemelerin aşınma performansının incelenmesi”, Yüksek Lisans Tezi, Afyon Kocatepe Üniversitesi Fen Bilimleri Enstitüsü, Afyon, 2008.
3. L. Gao, G. Hu, N. Xu, J. Fu, C. Xiang and C. Yang, “Experimental study on unconfined compressive strength of basalt fiber reinforced clay soil”, Adva. in Mat. Scie. and Engin., pp. 1-8, 2015.
4. C.P. Ndepete and S. Sert, “Use of basalt fibers for soil improvement”, Acta Phys. Polon., vol. 130, no. 1, pp. 355-356, 2016.
5. T. Özdemir, G.E. Polat, O. Azdeniz, A. Boz and A. Sezer, “Bazalt fiber ve kireç ile güçlendirilmiş kil zeminin dayanım özellikleri”, 2016.
6. W. Yixian, G. Panpan, S. Shengbiao, Y. Haiping and Y. Binxiang, “Study on strength influence mechanism of fiber-reinforced expansive soil using jute”, Geotech. and Geol. Engin., vol. 34, pp. 1079-1088, 2016.
7. P.G. Gisymol and K. Ramya, “A study on the effect of basalt fiber in organic soil”, IOSR Jour. of Mech. and Civil Eng. (IOSR-JMCE), vol. 14, no. 4, pp. 13-17, 2017.
8. A. Boz, A. Sezer, T. Özdemir, G.E. Hızal and O. Azdeniz Dolmacı, “Mechanical properties of lime-treated clay reinforced with different types of randomly distributed fibers”, Arab. Jour.of Geosc., vol. 11, no. 6, pp. 122, 2018.

9. A. Kenan and A. Özocak, “Effect of basalt fiber addition on shear strength of silty soils”, International Symposium on Natural Hazards and Disaster Management, pp. 918-924, 2018.
10. V.M. Pandit, C. Rohit, K. Tushar, C. Ayushi, G. Bhushan and C. Deepali, “Study of basalt fiber on compaction characteristics of black cotton soil”, 6th International Conference on Recent Trends in Engineering & Technology (ICRTET), pp. 850-853, 2018.
11. A. Sungur, M.F. Yazıcı and S.N. Keskin, “Experimental research on the engineering properties of basalt fiber reinforced clayey soil”, Europ. Jour. of Sc. and Techn. Spec. Issue, vol. 28, pp. 895-899, 2021.
12. Z. Gürocak and Y. Aslan Topçuoğlu, “The effect of basalt fiber use on the unconfined compressive strength of low plasticity clay”, *Gümüşhane Uni. Jour. of Sci.e and Techno., vol. 13, no. 3, pp. 688-701, 2023.
13. Y. Aslan Topçuoğlu and Z. Gürocak, “Determination of the optimum basalt fiber ratio for maximum strength in sodium bentonite clay reinforcement”, Dicle Uni. Jour. of Eng., vol. 14, no. 3, pp. 479-487, 2023.
14. A.K. Sabat, “Effect of polypropylene fiber on engineering properties of rice husk ash-lime stabilised expansive soil”, *EJGE*, vol. 17, 2012.
15. V.R. Kulkarni and G.K. Patil, “Experimental study of stabilization of BC soil by using slag and glass fibers”, *Jour. of Civil Eng. and Envir. Tech., vol. 1, no. 2, pp. 107-112, 2014.
16. H. Baruah, “Effect of glass fiber on red soil”, Intern. Jour. of Adv. Techn. in Eng. and Sci., vol. 3, no. 1, pp. 217-223, 2015.
17. R.S. Balagoudra, V. Krishna, H.S. Yaligar, T. Jayasurya and G.C. Shwetha, “Soil stabilization using lime and polypropylene fiber material”, Intern. Jour. of Eng. Sci.e and Comp., vol. 7, no. 5, 2017.
18. A.B. Aravalli, A.M. Hulagabali, C.H. Solanki and G.R. Dodagoudar, “Enhancement of index and engineering properties of expansive soil using chopped basalt fibers”, 2017.
19. G.M. Ayininuola and L.O. Balogun, “Investigation of glass fiber potential in soil stabilization”, *Internat. Jour. of Eng. and Adv. Techn., vol. 7, no. 5, 2018.
20. R.Y. Kale, N.D. Dahake, S.M. Sahu, G.A. Gawande, P.J. Wailker, V.R. Patekar and C.R. Pawar, “Soil stabilization by using basalt fibers”, Intern. Jour. of Sci. Res.& Eng. Tren., vol. 6, no. 3, pp. 1931-1935, 2020.
21. A.S. Kehinde, I.E. Igbokwe, J.E. Okon and B.E. Koku-Ojumu, “Geotechnical properties of lateritic soil stabilized with glass fiber”, Intern. Jour. of Eng. Res. & Tech., vol. 9, no. 9, pp. 1078-1081, 2020.
22. R. Chaudhary, “Enhancing the properties of soil by stabilization technique using basalt fiber”, Civil Engineering Department, Delhi Technological University, 2021.
23. N. Kambale and P.G. Rakkaraddi, “Comparative study of soil stabilization with addition of glass, basalt and polypropylene fibres”, Internat. Jour. of Creat. Res. Thoug. (IJCRT)*, vol. 10, no. 9, pp. b674-b681, 2022.
24. K.W.A. Al-Kaream, M.Y. Fattah and M.K. Hameedi, “Compressibility and strength development of soft soil by polypropylene fiber”, Internat. Jour. of GEOMATE, vol. 22, no. 93, pp. 91-97, 2022.
25. S.N. Hamirani and A. Kumar, “Effects of polypropylene fibers on soil reinforcement”, Intern. Res. Jour. of Moder. in Eng. Tech. and Sci., vol. 4, no. 12, 2022.
26. MTA-Maden Tetkik Arama, *https://www.mta.gov.tr/v3.0/sayfalar/bilgi-merkezi/maden-serisi/img/kaolen.pdf*, 2023.
27. Y. Aslan Topçuoğlu, “The effect of different additive materials on the engineering properties of soils”, PhD Thesis, Fırat University, Elazığ, Türkiye, 2020.
28. H. Jamshaid and R. Mishra, “A green material from rock: basalt fiber-a review”, The Jour. of the Textile Instit., vol. 107, no. 7, pp. 923-937, 2015.
29. T. Czigany, J. Vad and K. Poloskei, “Basalt fiber as a reinforcement of polymer composites”, Period. Polyt. of Mech. Eng., vol. 49, pp. 3-14, 2005.
30. K. Singha, “A short review on basalt fiber”, *Intern. Jour. of Text. Sci., vol. 1, no. 4, pp. 19-28, 2012.
31. ASTM D698-12e2, “Standard test methods for laboratory compaction characteristics of soil using standard effort”, ASTM International, West Conshohocken, PA, 2012.