Geomechanics and Engineering

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Effects of organic silicone additive material on physical and mechanical properties of mudstone

  • Chai, Zhaoyun (Mining Technology Institute, Taiyuan University of Technology) ;
  • Kang, Tianhe (Mining Technology Institute, Taiyuan University of Technology) ;
  • Chen, Weiyi (Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology)
  • Received : 2013.05.07
  • Accepted : 2013.09.22
  • Published : 2014.02.25
⟨ Previous Next ⟩

Abstract

Mudstone is a very common rock that, when in contact with water, can exhibit considerable volume change and breakdown. This behavior of mudstone is frequently encountered in geotechnical engineering and has a considerable influence on infrastructure stability. This is particularly important in the present work, which focuses on mitigating the harmful properties of mudstone. The samples studied are of Permian Age mudstone from Shandong Province, China. Modification tests using organic silicone additive material were carried out. The mechanisms of physical properties modification of mudstone were comparatively studied using corresponding test methods, and the modification mechanism of organic silicone additive material acting on mudstone was analyzed. The following conclusions were drawn. The surface texture and characters of mudstone changed dramatically, surface character turns from hydrophilic to hydrophobic after organic silicone additive material modification. The changes in the surface character indicate a reduction in the water sensitivity of mudstone. After modification, the shape of porosity and fracture of mudstone changed unremarkable, and the total and free expansion ratios decreased obviously, whereas the strength increased markedly.

Keywords

References

  1. Alejano, L.R., Rodriguez-Dono, A., Alonso, E. and Fdez-Manin, G. (2009), "Ground reaction curves for tunnels excavated in different quality rock masses showing several types of post-failure behaviour", Tunn. Undergr. Sp. Tech., 24(6), 689-705. https://doi.org/10.1016/j.tust.2009.07.004
  2. Barrett, E.P., Joyner, L.G. and Halenda, P.P. (1951), "The determineation of pore volume and area distribution in porous substances. I Computing from nitrogen isotherms", J. Am. Chem. Soc., 73(1), 373-380. https://doi.org/10.1021/ja01145a126
  3. Brunauer, B.S., Emmett, P.H. and Teller, E. (1938), "Adsorption of gases in multi-molecular layers", J. Am. Chem. Soc., 60(1), 309-319. https://doi.org/10.1021/ja01269a023
  4. Cai, Y., Esaki, T. and Jiang, Y. (2004), "An analytical model to predict axial load in grouted rock bolt for soft rock tunneling", Tunn. Undergr. Sp. Tech., 19(6), 607-618. https://doi.org/10.1016/j.tust.2004.02.129
  5. Chai, Z., Kang, T. and Yang, Y. (2009), "Evaluation of silicon modified resin for coated soft rock with high montmorillonite content and its effects", Chinese J. Rock Mech. Eng., 28(1), 81-87.
  6. Chai, Z., Kang, T. and Yang, Y. (2010), "Experimental study on coated modification of soft rock with high kaolinite content", J. China Coal Soc., 35(5), 734-738.
  7. Corkum, A.G. and Martin, C.D. (2007), "The mechanical behaviour of weak mudstone (Opalinus Clay) at low stresses", Int. J. Rock Mech. Min. Sci., 44(2), 196-209. https://doi.org/10.1016/j.ijrmms.2006.06.004
  8. Dai, H.L., Wang, X., Xie, G.X. and Wang, X.Y. (2004), "Theoretical model and solution for the rheological problem of anchor-grouting a soft rock tunnel", Int. J. Pressure Vessels Piping, 81(9), 739-748. https://doi.org/10.1016/j.ijpvp.2004.05.004
  9. Dhakal, G., Yoneda, T., Kato, M. and Kaneko, K. (2002), "Slake durability and mineralogical properties of some pyroclastic and sedimentary rocks", Eng. Geol., 65(1), 31-45. https://doi.org/10.1016/S0013-7952(01)00101-6
  10. Doostmohammadi, R., Moosavi, M. and Araabi, B.N. (2008), "A model for determining the cyclic swell-shrink behavior of argillaceous rock", Apply Clay Sci., 42(1/2), 81-89. https://doi.org/10.1016/j.clay.2007.11.008
  11. Erguler, Z.A. and Ulusay, R. (2009), "Water-induced variations in mechanical properties of clay-bearing rocks", Int. J. Rock Mech. Min. Sci., 46(2), 355-370. https://doi.org/10.1016/j.ijrmms.2008.07.002
  12. Hart, P.A. (1993), "Foundation behaviour in reusable tunnels in weak rocks", Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 30(3), 239-246. https://doi.org/10.1016/0148-9062(93)92727-8
  13. Hideo, K. (2004), "Simplified evaluation for swelling characteristics of Bentonites", Eng. Geol., 71(3/4), 265-279. https://doi.org/10.1016/S0013-7952(03)00140-6
  14. ISRM (1979), Suggested methods for determining the uniaxial compressive strength and deformability of rock materials.
  15. Jeng, F.S., Wang, M.C., Huang, T.H. and Liu, M.L. (2002), "Deformational characteristics of weak sandstone and impact to tunnel deformation", Tunn. Undergr. Sp. Tech., 17(3), 263-274. https://doi.org/10.1016/S0886-7798(02)00011-1
  16. Jiang, Y., Yoneda, H. and Tanabashi, Y. (2001), "Theoretical estimation of loosening pressure on tunnels in soft rock", Tunn. Undergr. Sp. Tech., 1(2), 99-105.
  17. Pham, Q.T., Vales, F., Malinsky, L., Minh, D.N. and Gharbi, H. (2007), "Effects of desaturation resaturation on mudstone", Phys. Chem. Earth, Parts A/B/C, 32(8-14), 646-655. https://doi.org/10.1016/j.pce.2006.03.012
  18. Pejon, O.J. and Zuquette, L.V. (2002), "Analysis of cyclic swelling of mudrocks", Eng. Geol., 67(1/2), 97-108. https://doi.org/10.1016/S0013-7952(02)00147-3
  19. Seaton, N.A., Walton, J.P. and Quirke, N. (1989), "A new analysis method for the determination of the pore size distribution of porous carbons from nitrogen adsorption measurements", Carbon, 27(6), 853-861. https://doi.org/10.1016/0008-6223(89)90035-3
  20. Shao, J.F., Ata, N. and Ozanam, O. (2005), "Study of desaturation and resaturation in brittle rock with anisotropic damage", Eng. Geol., 81(3), 341-352. https://doi.org/10.1016/j.enggeo.2005.06.015
  21. You, M. and Su, C. (2004), "Effect of length of fine and coarse crystal marblespecimens on uniaxial compression tests", Chinese J. Rock Mech. Eng., 23(22), 3754-3760.
  22. Young, T. (1805), "An essay on the cohesion of fluids", Philosophical Transactions of the Royal Society of London, 95(1), 65-87. https://doi.org/10.1098/rstl.1805.0005

Cited by

  1. Study of physical simulation of electrochemical modification of clayey rock vol.11, pp.2, 2016, https://doi.org/10.12989/gae.2016.11.2.197
  2. Dilatation characteristics of the coals with outburst proneness under cyclic loading conditions and the relevant applications vol.14, pp.5, 2018, https://doi.org/10.12989/gae.2018.14.5.459