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Unconfined compressive strength property and its mechanism of construction waste stabilized lightweight soil

  • Zhao, Xiaoqing (School of Civil and Ocean Engineering, Jiangsu Ocean University) ;
  • Zhao, Gui (School of Civil and Ocean Engineering, Jiangsu Ocean University) ;
  • Li, Jiawei (School of Civil and Ocean Engineering, Jiangsu Ocean University) ;
  • Zhang, Peng (School of Civil and Ocean Engineering, Jiangsu Ocean University)
  • 투고 : 2019.07.23
  • 심사 : 2019.11.01
  • 발행 : 2019.11.20

초록

Light construction waste (LCW) particles are pieces of light concrete or insulation wall with light quality and certain strength, containing rich isolated and disconnected pores. Mixing LCW particles with soil can be one of the alternative lightweight soils. It can lighten and stabilize the deep-thick soft soil in-situ. In this study, the unconfined compressive strength (UCS) and its mechanism of Construction Waste Stabilized Lightweight Soil (CWSLS) are investigated. According to the prescription design, totally 35 sets of specimens are tested for the index of dry density (DD) and unconfined compressive strength (UCS). The results show that the DD of CWSLS is mainly affected by LCW content, and it decreases obviously with the increase of LCW content, while increases slightly with the increase of cement content. The UCS of CWSLS first increases and then decreases with the increase of LCW content, existing a peak value. The UCS increases linearly with the increase of cement content, while the strength growth rate is dramatically affected by the different LCW contents. The UCS of CWSLS mainly comes from the skeleton impaction of LCW particles and the gelation of soil-cement composite slurry. According to the distribution of LCW particles and soil-cement composite slurry, CWSLS specimens are divided into three structures: "suspend-dense" structure, "framework-dense" structure and "framework-pore" structure.

키워드

과제정보

연구 과제 주관 기관 : National Foundation of China

참고문헌

  1. Ahmed, A.R., Rami, E.S.M and Hani, A.L. (2018), "Mechanical properties and time-dependent behaviour of sand-granulated rubber mixtures", Geomech. Geoeng., 13(4), 288-300. https://doi.org/10.1080/17486025.2018.1440013.
  2. Ehsani, M., Shariatmadari, N. and Mirhosseini, S.M. (2015), "Shear modulus and damping ratio of sand-granulated rubber mixtures", J. Central South Univ., 22(8), 3159-3167. https://doi.org/10.1007/s11771-015-2853-7.
  3. Gao, Y.F., Wang, S.M. and Chen, C.B. (2011), "A united deformation-strength framework for Lightweight Sand-EPS Beads Soil (LSES) under cyclic loading", Soil Dyn. Earthq. Eng., 31(8), 1144-1153. https://doi.org/10.1016/j.soildyn.2011.04.002.
  4. Kikuchi, Y., Nagatome, T., Fukumoto, H. and Higashijima, M. (2008), "Absorption property evaluation of light weight soil with air foam under wet sand condition", J. Soc. Mater. Sci. Japan, 57(1), 56-59. https://doi.org/10.2472/jsms.57.56.
  5. Kikuchi, Y., Nagatome, T., Mizutani, T.A. and Yoshino, H. (2011). "The effect of air foam inclusion on the permeability and absorption properties of light weight soil", Soils Found., 51(1), 151-165. https://doi.org/10.3208/sandf.51.151.
  6. Kim, T.H., Kang, G.C. and Park, L.K. (2014), "Development and mechanical strength properties of a new lightweight soil", Environ. Earth Sci., 72(4), 109-116. https://doi.org/10.1007/s12665-013-3027-2.
  7. Kim, T.H., Kim, T.H. and Kang, G.C. (2013), "Performance evaluation of road embankment constructed using lightweight soils on an unimproved soft soil layer", Eng. Geol., 2013(160), 34-43. https://doi.org/10.1016/j.enggeo.2013.03.024.
  8. Kim, Y.T, Kim, H.J and Lee, G.H, (2008), "Mechanical behavior of lightweight soil reinforced with waste fishing net", Geotext. Geomembr., 26(6), 512-518. https://doi.org/10.1016/j.geotexmem.2008.05.004.
  9. Kim, Y.T. and Kang, H.S. (2011), "Engineering characteristics of rubber-added lightweight soil as a flowable backfill material", J. Mater. Civ. Eng., 23(9), 1289-1294. https://doi.org/10.1061/(asce)mt.1943-5533.0000307.
  10. Kim, Y.T., Ahn, J., Han, W.J. and Gabr, M.A. (2010), "Experimental evaluation of strength characteristics of stabilized dredged soil", J. Mater. Civ. Eng., 22(5),539-544. https://doi.org/10.1061/(asce)mt.1943-5533.0000052.
  11. Li, M.D., Wen, K.J., Li, L. and Tian, A.G. (2017), "Mechanical properties of expanded polystyrene beads stabilized lightweight soil", Geomech. Eng., 13(3), 459-474. https://doi.org/10.12989/gae.2017.13.3.459.
  12. Lin, L.K., Chen, L.H. and Chen, R.H.L. (2010), "Evaluation of geofoam as a geotechnical construction material", J. Mater. Civ. Eng., 22(2), 160-170. https://doi.org/10.1061/(asce)0899-1561(2010)22:2(160).
  13. Najmaddin, D.Y. and Canakci, H. (2013), "Compaction properties of sand mixed with modified waste EPS", Geotech. Geol. Eng., 31(1), 315-318. https://doi.org/10.1007/s10706-012-9559-5.
  14. Nobuo, M.Y.S and Kakei K.Z.Y.K. (1994), "Study on geotechnical method of bubble mixed cement filling", J. Japan Soc. Civ. Eng., 1994(1), 18-21.
  15. Oh, K.S. and Kim, T.H. (2014), "Dependence of the material properties of lightweight cemented soil on the curing temperature", J. Mater. Civ. Eng., 26(7), 06014008. https://doi.org/10.1061/(asce)mt.1943-5533.0000940.
  16. Otani, J., Mukunoki, T. and Kikuchi, Y. (2002), "Visualization for engineering property of in-situ light weight soils with air foams", Soils Found., 42(3), 93-105. https://doi.org/10.3208/sandf.42.3_93.
  17. Satoh, T., Mitsukuri, K., Tsuchida, T. and Hong, Z. (2008), "Field placing test of lightweight treated soil under seawater in Kumamoto port", J. Jap. Geotech. Soc. Soils Found., 41(5), 145-153. https://doi.org/10.3208/sandf.41.5_145.
  18. Spyridopoulos, M.T. and Simons, S.J.R. (2004), "Effect of natural organic matter on the stability of a liquid film between two colliding bubbles", Colloid. Surface A, 235(1-3), 25-34. https://doi.org/10.1016/j.colsurfa.2003.01.001.
  19. Vo, H.V. and Park, D.W. (2016), "Lightweight treated soil as a potential sustainable pavement material", J. Perform. Construct. Fac., 30(1), 4014009-1-4014009-7. https://doi.org/10.1061/(asce)cf.1943-5509.0000720.
  20. Wako, T., Tsuchida, T. and Matsunaga. (1998), "Use of artificial lightweight materials for port facility", J. Jap. Soc. Civ. Eng., 1998(40), 35-42.
  21. Watabe, Y, and Noguchi, T. (2011), "Site-investigation and geotechnical design of d-runway construction in Tokyo Haneda airport", Soils Found., 51(6), 1003-1018. https://doi.org/10.3208/sandf.51.1003.
  22. Watabe, Y., Saegusa, H., Shinsha, H. and Tsuchida, T. (2011), "Ten year follow-up study of airfoam-treated lightweight soil", Ground Improv. Proc. Inst. Civ. Eng., 164(3), 189-200. https://doi.org/10.1680/grim.2011.164.3.189.
  23. Wu, J.D., Zhang, Z.R., Zhang, Y. and Li, D.X. (2018), "Preparation and characterization of ultra-lightweight foamed geopolymer (UFG) based on fly ash-metakaolin blends", Construct. Build. Mater., 168, 771-779. https://doi.org/10.1016/j.conbuildmat.2018.02.097.
  24. Zeng, K.L. (2006), "Influence of humic acid on solidificaiton effect of solidified silt and influence mechanism", M.Sc. Dissertation, Hohai Universiy, Nanjing, China. https://doi.org/10.7666/d.y843139.
  25. Zhang, T., Cai, G.J. and Duan, W.H. (2018), "Strength and microstructure characteristics of the recycled rubber tire-sand mixtures as lightweight backfill", Environ. Sci. Pollut. Res., 25(4), 3872-3883. https://doi.org/10.1007/s11356-017-0742-3.
  26. Zhao, X.Q. (2015), "Study on the mechanical properties of the mixed lightweight soil made from sea silt and construction waste adding phosphate", Ph.D. Dissertation, Nanjing Forestry University, Nanjing, China.
  27. Zhou, Y.D, Wang, Y., Li, B., Xu, J.H. and Liu, M.C.(2018), "Study of the preparation of air-foam treated lightweight soil samples", Rock Soil Mech., 39(12), 4413-4420, 4428. https://doi.org/10.3969/j.issn.1673-0836.2009.01.004.

피인용 문헌

  1. Strength Characteristics of Cement Treated and Expanded Polystyrene Mixed Lightweight of Waste Soil from the Construction Site of a Yangtze River Bridge in China vol.2020, 2019, https://doi.org/10.1155/2020/3640510