An experimental study on the micromechanical behavior of pumice
- 175 Downloads
Abstract
Pumice has a large potential to be used in structural and geotechnical engineering projects as a lightweight aggregate, and it is a material of unique characteristics. Gravel-sized pumice from Yunnan, China, was examined in the present study with a custom-built micromechanical apparatus investigating the properties of pairs of grains at their interfaces subjected to monotonic and cyclic tests under different saturation states. Based on interferometer measurements, the vesicular surface of the pumice was characterized to be very rough. From the interface micromechanical experiments, it was shown that the virgin surfaces appeared to be very soft under normal loading tests, during which micro-asperity breakage was caused. After preloading and preshearing, the normal load–displacement curves became much smoother and the Young’s moduli, which remained relatively low in magnitude compared with other geo-materials previously studied, could be quantified applying the Hertzian model. Large hysteretic loops were observed from cyclic normal load tests. Plastic displacements dominated the first normal loading cycle, while elastic displacements prevailed in the subsequent cycles. High values of the apparent coefficient of friction were observed from the monotonic shearing tests. A modification of the power value of the Mindlin and Deresiewicz model was necessary to be applied during the fitting of the experimental data so that theoretical and laboratory curves could match. It was shown that this power had a direct correlation with the coefficient of friction.
Keywords
Friction Grain scale testing Interface properties Micromechanics Pumice StiffnessNotes
Acknowledgements
The work described in this paper was fully supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China, Project no. “CityU 11206617.”
References
- 1.Bolen WP (2003) Pumice and pumicite. US Geological Survey Minerals YearbookGoogle Scholar
- 2.Bolton M (1986) The strength and dilatancy of sands. Géotechnique 36(1):65–78Google Scholar
- 3.Cavarretta I, Coop MR, O’Sullivan C (2010) The influence of particle characteristics on the behavior of coarse grained soils. Géotechnique 60(6):413–423Google Scholar
- 4.Cavarretta I, Rocchi I, Coop MR (2011) A new interparticle friction apparatus for granular materials. Can Geotech J 48(12):1829–1840Google Scholar
- 5.Cole DM, Hopkins MA (2017) The contact properties of naturally occurring geologic materials: contact law development. Granular Matter 19(1):5Google Scholar
- 6.Cole DM, Mathisen LU, Hopkins MA, Knapp BR (2010) Normal and sliding contact experiments on gneiss. Granular Matter 12:69–86Google Scholar
- 7.Cole DM, Peters JF (2007) A physically based approach to granular media mechanics: grain-scale experiments, initial results and implications to numerical modeling. Granular Matter 9:309–321Google Scholar
- 8.Cole DM, Peters JF (2008) Grain-scale mechanics of geologic materials and lunar simulants under normal loading. Granular Matter 10:171–185Google Scholar
- 9.Dieterich JH, Conrad G (1984) Effect of humidity on time-and velocity-dependent friction in rocks. J Geophys Res Solid Earth 89(B6):4196–4202Google Scholar
- 10.Fisher RV, Schmincke H-U (1984) Pyroclastic rocks. Springer, BerlinGoogle Scholar
- 11.Founie A (2005) Pumice and pumicite. US Geological Survey Minerals Year Book, pp 128–129Google Scholar
- 12.Frye KM, Marone C (2002) Effect of humidity on granular friction at room temperature. J Geophys Res Solid Earth 107(B11):ETG11-1–ETG11-13Google Scholar
- 13.Gao L, Li H, Xie J, Yang X (2017) Mixed-mode fracture modeling of cold recycled mixture using discrete element method. Constr Build Mater 151:625–635Google Scholar
- 14.Gu M, Han J, Zhao M (2017) Three-dimensional DEM analysis of single geogrid-encased stone columns under unconfined compression: a parametric study. Acta Geotech 12(3):559–572Google Scholar
- 15.Hertz H (1882) Uber die beruhrang fester elastischer korper (on the contact of elastic solids). Journal für die reine und angewandte Mathematik 92:156–171zbMATHGoogle Scholar
- 16.Hossain KMA, Ahmed S, Lachemi M (2011) Lightweight concrete incorporating pumice based blended cement and aggregate: mechanical and durability characteristics. Constr Build Mater 25(3):1186–1195Google Scholar
- 17.Hossain KMA (2004) Properties of volcanic pumice based cement and lightweight concrete. Cem Concr Res 34(2):283–291Google Scholar
- 18.Hossain KMA (2008) Bond characteristics of plain and deformed bars in lightweight pumice concrete. Constr Build Mater 22(7):1491–1499Google Scholar
- 19.Huang X, Hanley KJ, O’Sullivan C, Kwok CY (2014) Exploring the influence of interparticle friction on critical state behaviour using DEM. Int J Numer Anal Meth Geomech 38(12):1276–1297Google Scholar
- 20.Johnson KL (1985) Contact mechanics. Cambridge University Press, CambridgezbMATHGoogle Scholar
- 21.Kikkawa N, Orense RP, Pender MJ (2013) Observations on microstructure of pumice particles using computed tomography. Can Geotech J 50(11):1109–1117Google Scholar
- 22.Klug C, Cashman K, Bacon C (2002) Structure and physical characteristics of pumice from the climactic eruption of Mount Mazama (Crater Lake). Oregon. Bulletin of Volcanology 64(7):486–501Google Scholar
- 23.Lim W, McDowell G (2005) Discrete element modelling of railway ballast. Granular Matter 7(1):19–29zbMATHGoogle Scholar
- 24.Luding S (2008) Cohesive, frictional powders: contact models for tension. Granular Matter 10:235–246zbMATHGoogle Scholar
- 25.Mindlin RD, Deresiewicz H (1953) Elastic spheres in contact under varying oblique forces. J Appl Mech 20:327–344MathSciNetzbMATHGoogle Scholar
- 26.Nardelli V (2017) An experimental investigation of the micromechanical contact behavior of soils. Ph.D. thesis, Architecture and Civil Engineering Department, City University of Hong KongGoogle Scholar
- 27.Nardelli V, Coop MR, Andrade JE, Paccagnella F (2017) An experimental investigation of the micromechanics of Eglin sand. Powder Technol 312:166–174Google Scholar
- 28.Ng T-T (2006) Input parameters of discrete element methods. Journal of Engineering Mechanics 132(7):723–729Google Scholar
- 29.O’Sullivan C (2011) Particulate discrete element modelling: A geomechanics perspective. CRC Press, Boca RatonGoogle Scholar
- 30.Orense R, Pender M, Hyodo M, Nakata Y (2013) Micro-mechanical properties of crushable pumice sands. Géotech Lett 3(2):67–71Google Scholar
- 31.Pender M, Wesley L, Larkin T, Pranjoto S (2006) Geotechnical properties of a pumice sand. Soils Found 46(1):69–81Google Scholar
- 32.Sandeep CS, Senetakis K (2017) Exploring the micromechanical sliding behavior of typical quartz grains and completely decomposed volcanic granules subjected to repeating shearing. Energies 10(3):370Google Scholar
- 33.Sandeep CS, Senetakis K (2018) Effect of young’s modulus and surface roughness on the inter-particle friction of granular materials. Materials 11:217Google Scholar
- 34.Sandeep CS, Senetakis K (2018) Micromechanical experiments using a new inter-granule loading apparatus for gravel-to-ballast sized materials. Friction. https://doi.org/10.1007/s40544-018-0243-5 CrossRefGoogle Scholar
- 35.Sandeep CS, Senetakis K (2018) Grain-scale mechanics of quartz sand under normal and tangential loading. Tribol Int 117:261–271Google Scholar
- 36.Sandeep CS, Senetakis K (2018) The tribological behavior of two potential-landslide saprolitic rocks. Pure appl Geophys 175:1–17Google Scholar
- 37.Sandeep CS, He H, Senetakis K (2018) An experimental micromechanical study of sand grain contacts behavior from different geological environments. Eng Geol 246:176–186Google Scholar
- 38.Sandeep CS, Todisco M, Nardelli V, Senetakis K, Coop M, Lourenco S (2018) A micromechanical experimental study of highly/completely decomposed tuff granules. Acta Geotech 13(6):1355–1367Google Scholar
- 39.Sandeep CS, Todisco MC, Senetakis K (2017) Tangential contact behaviour of weathered volcanic landslide material from Hong Kong. Soils Found 57:1097–1103Google Scholar
- 40.Senetakis K, Anastasiadis A, Pitilakis K, Coop MR (2013) The dynamics of a pumice granular soil in dry state under isotropic resonant column testing. Soil Dyn Earthq Eng 45:70–79Google Scholar
- 41.Senetakis K, Coop MR (2014) The development of a new micro-mechanical inter-particle loading apparatus. Geotech Test J 37(6):1028–1039Google Scholar
- 42.Walton OR, Braun RL (1986) Viscosity, granular-temperature, and stress calculations for shearing assemblies of inelastic, frictional disks. J Rheol 30(5):949–980Google Scholar
- 43.Walton OR, Johnson SM (2009) Simulating the effects of interparticle cohesion in micron-scale powders. AIP Conf Proc 1145:897–900Google Scholar
- 44.Whitham A, Sparks R (1986) Pumice. Bull Volc 48(4):209–223Google Scholar
- 45.Yan Z, Wilkinson S, Stitt E, Marigo M (2015) Discrete element modelling (DEM) input parameters: understanding their impact on model predictions using statistical analysis. Comput Part Mech 2(3):283–299Google Scholar
- 46.Yang L, Wang D, Guo Y, Liu S (2016) Tribological behaviors of quartz sand particles for hydraulic fracturing. Tribol Int 102:485–496Google Scholar