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HOU Tian-shun, XU Guang-li. Optimum water content models and tests of lightweight soil[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(7): 1129-1134.
Citation: HOU Tian-shun, XU Guang-li. Optimum water content models and tests of lightweight soil[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(7): 1129-1134.

Optimum water content models and tests of lightweight soil

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  • Received Date: April 11, 2010
  • Published Date: July 14, 2011
  • To determine the optimum water content of light weight soil with different mixture proportions, three kinds of models for the optimum water content are put forward: ρd–w model, qu–w model and RS-w model. It is supposed that three models can be expressed as a uniform downward opening parabola function. Analytic expressions for the optimum water content are theoretically derived. To test the above three models and to determine model coefficients, physical mechanical properties of light weight soil are studied by laboratory tests. The results show that the dry density, unconfined compressive strength and specific strength first increase and then decrease with the increase of water content, each of them has an optimum water content, and their curve shapes are similar to parabola. The measured data are analyzed based on the three models, the optimum water content calculated by models are very close to that obtained directly by the graphic method. By use of the precursors’ research achievements, the corresponding optimum water contents of qu–w model and RS-w model are almost the same, but they are slightly different from the corresponding optimum water content of ρd–w model. The optimum water contents of the three models are essentially the same. The optimum water content of light weight soil is the sum of physical and chemical water demand, it is an external appearance of water demand of complex physical and chemical reactions, and it is a theoretical basis for the three models to be unified. Taking RS–w model for an example, the water demand rate of mass of different components are calculated, and the results are closely related to properties of materials.
  • [1]
    黄 英, 符必昌. 确定土的最大干密度和最优含水率的数解法[J]. 岩土工程学报, 2002,24 (4): 538–540. (HUANG Ying, FU Bi-chang. Thenumerical solutions of maximum dry density and optimum water content of soil [J]. Chinese Journal of Geotechnical Engineering, 2002,24 (4): 538–540. (in Chinese))
    [2]
    JESMANI M, MANESH A N,HOSEINI S M R. Optimum water content and maximum dry unit weight of clayey gravels at different compactive efforts[J]. Electronic Journal of Geotechnical Engineering, 2008, 13L.
    [3]
    BLOTZ L R, BENSON C H,BOUTWELL G P. Estimating optimum water content and maximum dry unit weight forcompacted clays[J]. Journal of Geotechnical and Geoenvironmental Engineering,1998,124 (9): 907–912.
    [4]
    BARDEN L.Consolidation of clays compacted ‘dry’ and ‘wet’ of optimum water content[J].Geotechnique, 1974,24 (4): 605–625.
    [5]
    张志权, 王志勇. 最大干密度和最优含水率的准确性探讨[J]. 长安大学学报, 2004,21 (2):7–10. (ZHANG Zhi-quan, WANG Zhi-yong. Discussion on precision of biggest dry density and optimum water content[J]. Journal of Chang’an University, 2004,21 (2): 7–10. (in Chinese))
    [6]
    董金梅. 聚苯乙烯轻质混合土工程特性的试验研究[D]. 南京: 河海大学, 2005. (DONG Jin-mei. Study onthe engineering characteristic of light heterogeneous soil mixed expanded polystyrene[D]. Nanjing: Hohai University, 2005. (in Chinese))
    [7]
    侯天顺, 徐光黎. 发泡颗粒混合轻量土三轴应力-应变-孔压特性试验[J]. 中国公路学报, 2009,22 (6):10–17. (HOU Tian-shun, XU Guang-li. Experiment on triaxial pore water pressure-stress-strain characteristics of foamed particle light weight soil[J].China Journal of Highway and Transport, 2009,22 (6): 10–17. (in Chinese))
    [8]
    王庶懋. 砂土与EPS颗粒混合的轻质土(LSES)动力特性的试验研究[D]. 南京: 河海大学, 2007. (WANG Shu-mao. Experimental study on dynamic characteristics of light weight sand-EPS beads soil(LSES)[D]. Nanjing: Hohai University, 2007.(in Chinese))
    [9]
    马时冬. 聚苯乙烯泡沫塑料轻质填土(SLS)的特性[J].岩土力学,2001,22 (3): 245–248. (MA Shi-dong. The properties ofstabilized light soil(SLS) with expanded polystyrene[J]. Rock and SoilMechanics, 2001,22 (3): 245–248.(in Chinese))
    [10]
    KIKU H, OMINE K, KAWANO H,et al. Experimental study on static strength of light weight soil in Japan[C]//Proceeding of the International Workshop on Light Weight Geo-Materials(IW-LGM2002).Tokyo, 2002: 3–22.
    [11]
    顾欢达, 顾 熙, 申 燕, 等. 发泡颗粒轻质土材料的基本性质[J].苏州科技学院学报, 2003, 16 (4): 44–48. (GUHuan-da, GU Xi, SHEN Yan, et al. The fundamental properties of light soil mixed with foamed beads[J]. Journal of University of Science and Technology of Suzhou, 2003,16 (4): 44–48. (in Chinese))
    [12]
    朱 伟, 李明东, 张春雷, 等. 砂土EPS颗粒混合轻质土的最优击实含水率[J]. 岩土工程学报, 2009,31 (1): 21–25. (ZHU Wei, LI Ming-dong, ZHANG Chun-lei, et al. The optimum moisture content of sand EPS beads mixed light weight soil[J]. Chinese Journal of Geotechnical Engineering, 2009,31 (1):21–25. (inChinese))
    [13]
    GB/T50123—1999土工试验方法标准[S]. 1999. (GB/T50123—1999 Standard for soil test method[S]. 1999. (in Chinese))
    [14]
    李明东, 朱 伟, 张春雷. 软夹杂土体的击实模型[J].土木工程学报, 2009,42 (12):149–153. (LI Ming-dong, ZHU Wei, ZHANG Chun-lei. A compaction model of soft inclusion soils[J]. China Civil Engineering Journal, 2009,42 (12): 149–153. (in Chinese))
    [15]
    李亚杰, 方坤河. 建筑材料[M]. 北京: 中国水利水电出版社, 2009. (LI Ya-jie, FANG Kun-he. Building materials[M]. Beijing: China Water Power Press, 2009. (in Chinese))
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