ANALISA PENGARUH POROSITAS TERHADAP NILAI KUAT TEKAN BATUAN ANDESIT DENGAN MENGGUNAKAN MODEL REGRESI HASSELMAN DAN RYSHKEWITCH BERBASIS MATLAB

https://doi.org/10.22146/jfi.v24i3.56549

Titah Anggraeni Putri Kinasih(1*), Agung Dimas Prabowo Darmawan(2), Rayhan Farisi Ramadhan(3), Widya Utama(4)

(1) Institut Teknologi Sepuluh Nopember
(2) Institut Teknologi Sepuluh Nopember
(3) Institut Teknologi Sepuluh Nopember
(4) Institut Teknologi Sepuluh Nopember
(*) Corresponding Author

Abstract


Telah dilakukan studi analisis untuk mempelajari bagaimana porositas mempengaruhi besarnya kuat tekan dengan meninjau hubungan porositas-kuat tekan yang ada dan dibandingkan dengan hasil eksperimen dari data sekunder pengujian porositas dan kuat tekan batu andesit di Batujajar, Bandung. Didapatkan hasil analisis dengan menggunakan model regresi Hasselman dan Ryshkewitch bahwa semakin besar porositas suatu batuan, maka nilai kuat tekannya semakin menurun. Pada suatu nilai porositas tertentu terjadi transisi mikrostruktur pada pori-pori batuan yang sepenuhnya terisolasi dan tertutup menjadi membuka dan saling berhubungan yang menyebabkan perubahan tiba-tiba pada nilai kuat tekan batuan. Model regresi Hasselman memiliki kelemahan saat porositas mendekati 100%, nilai kuat tekannya menjadi negatif sedangkan pada model Ryshkewitch mampu menginterpretasi nilai kuat tekan pada porositas 0% dan 100% dengan lebih baik. Dengan dibuatnya paper ini harapkan dapat dilakukan studi lebih lanjut tentang bagaimana usaha-usaha untuk meminimalisir dampak pengaruh porositas terhadap nilai kuat tekannya.


Keywords


Kuat tekan; porositas; regresi

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References

  1. Yudenfreund M HK. Hardened Portland cement paste of low porosity. V: compressive strength. 1972;2:731-743.
  2. Auskern A HW. Capillary porosity in hardened cement paste. J Test Eval. 1973;1:74-79.
  3. Pantazopoulou SJ MR. Microstructural aspects of the mechanical response of plain concrete. ACI Mater J. 1995;92(6):605-616.
  4. Popovics. Method for developing relationships between mechanical properties of hardened concrete. J Am Concr Inst. 1973;70:795-798.
  5. TC P. Structure and physical properties of hardened Portland cement paste. J Am Ceram Soc,. 1958;41(1):1-6.
  6. Schiller K. Strength of porous materials. Cem Concr Res. 1971;1:419-422.
  7. Kendall K HA. The relation between porosity, microstructure and strength, and the approach to advanced cement-based materials. Philo Trans Roy Soc Lond, SA. 1983;310(1511):139-153.
  8. Kumar R BB. Porosity, pore size distribution and in situ strength of concrete. Cem Concr Res. 2003;33:155-164.
  9. Li L AM. A general relationship between porosity and uniaxial strength of engineering materials. Can J Civil Eng. 2003;30:644-658.
  10. Ridwan P. KUALITAS ANDESIT DI DAERAH BATUJAJAR, KECAMATAN BATUAJAJAR. In: SEMINAR NASIONAL KEBUMIAN KE-10; 2017.
  11. Broch E. The point-load strength test. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts. 1972;9:666-676.
  12. Sarwono J. Statistik Itu Mudah: Panduan Lengkap Belajar Komputasi Statistik (Menggunakan SPSS 16). Yogyakarta: Penerbit Andi; 2009.
  13. R R. Compression strength of porous sintered alumina and zirconia. J Am Ceram Soc. 1953;36(2):65-68.
  14. DPH H. Grith aws and the eect of porosity on tensile strength of brittle ceramics. J Am Ceram Soc. 1969;52:457.
  15. Carniglia S. Working model for porosity eects on the uniaxial strength of ceramics. J Am Ceram Soc. 1972;55(12):610-618.
  16. Rice R. Relation of tensile strength{porosity eects in ceramics to porosity dependence of Young's modulus and fracture energy, porosity character And grain size. Mater Sci Eng A. 1989;112:215-224.
  17. Krstic V. Porosity dependence of strength in brittle solids. Theor Appl Fract Mec. 1988;10:241-247.
  18. Winslow DN CM. Percolation and pore structure in mortars and concrete. Cem Concr Res. 1994;24:25-37.
  19. Rice R. Comparison of stress concentration versus minimum solid area based mechanical property{porosity relations. J Mater Sci. 1993;28:2187-2190.
  20. Hasselman D. On the porosity dependence of the elastic moduli of polycrystalline refractory materials. J Am Ceram Soc. 1962;45:452-453.
  21. Hasselman DPH FR. Eect of small fraction of spherical porosity on elastic moduli of glass. J Am Ceram Soc. 1964;47:52-53.
  22. Bowie O. Analysis of an innite plate containing radial cracks originating St the boundary of an internal circular hole. J Math Phys. 1956;35(1):60-71.
  23. Rice R. Comparison of physical property{porosity behavior with minimum solid area models. J Mater Sci. 1996;31:1509-1528.
  24. Ye G. Percolation of capillary pores in hardening cement pastes. Cem Concr Res,. 2005;35:167-176.
  25. Powers T. Capillary continuity or discontinuity in cement pastes. Jurnal of PCA Research and Development Laboratories. 1959;p. 38-48.
  26. Power TC. Studies of the physical properties of hardened cement paste. Journal of the American Concrete Institute. 1947;43:101-992.



DOI: https://doi.org/10.22146/jfi.v24i3.56549

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