- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
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| Citation: | YANG Rongshan, LI Ying, XU Zhaorong, LIU Jia. Mechanical Properties of Wet Concrete Inside Double-Block Ballastless Tracks in Rainy Areas[J]. Journal of Southwest Jiaotong University, 2022, 57(4): 840-847. doi: 10.3969/j.issn.0258-2724.20210440
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An uneven humidity field forms inside double-block ballastless tracks long located in the water environment, and humidity will affect the mechanical properties of track structures. In order to study the macroscopic mechanical properties of concrete under different humidity conditions inside the double-block ballastless tracks in the water environment, combined with the humidity distribution of the double-block ballastless track in the water environment, the molecular dynamics of the nano-component (C-S-H) of the concrete matrix is established. Multi-scale calculation of concrete matrix and two-level homogenization analysis are conducted. The results show that the surface humidity of double-block ballastless tracks in the water environment show distinct gradient differentiation, and the maximum humidity difference inside the tracks can reach up to 38.41%; the elastic modulus and Poisson’s ratio of concrete increase with saturation; when concrete saturation is increased from 0 to 100%, the increases of the elastic modulus of the bearing layer, the track bed slab and the sleeper concrete attain 35.0%, 19.5% and 16.2%, respectively.
| [1] |
曹世豪,杨荣山,刘学毅,等. 无砟轨道层间裂纹内动水压力特性分析[J]. 西南交通大学学报,2016,51(1): 36-42. doi: 10.3969/j.issn.0258-2724.2016.01.006
CAO Shihao, YANG Rongshan, LIU Xueyi, et al. Analysis of water pressure in ballastless track crack[J]. Journal of Southwest Jiaotong University, 2016, 51(1): 36-42. doi: 10.3969/j.issn.0258-2724.2016.01.006
|
| [2] |
刘佳,杨荣山,胡猛,等. 无砟轨道层间离缝浸水条件下湿度影响范围分析[J]. 铁道科学与工程学报,2019,16(5): 1113-1119.
LIU Jia, YANG Rongshan, HU Meng, et al. Analysis of humidity influence range under immersion between interlayer seams in a ballastless track[J]. Journal of Railway Science and Engineering, 2019, 16(5): 1113-1119.
|
| [3] |
PARROTT L J. Moisture profiles in drying concrete[J]. Advances in Cement Research, 1988, 1(3): 164-170. doi: 10.1680/1988.1.3.164
|
| [4] |
王海龙,李庆斌. 孔隙水对湿态混凝土抗压强度的影响[J]. 工程力学,2006,23(10): 141-144,179. doi: 10.3969/j.issn.1000-4750.2006.10.027
WANG Hailong, LI Qingbin. Effect of pore water on the compressive strength of wet concrete[J]. Engineering Mechanics, 2006, 23(10): 141-144,179. doi: 10.3969/j.issn.1000-4750.2006.10.027
|
| [5] |
王海龙,李庆斌. 湿态混凝土抗压强度与本构关系的细观力学分析[J]. 岩石力学与工程学报,2006,25(8): 1531-1536. doi: 10.3321/j.issn:1000-6915.2006.08.003
WANG Hailong, LI Qingbin. Mesomechanics analysis of compressive strength and constitutive equation of wet concrete[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(8): 1531-1536. doi: 10.3321/j.issn:1000-6915.2006.08.003
|
| [6] |
王海龙,李庆斌. 不同加载速率下干燥与饱和混凝土抗压性能试验研究分析[J]. 水力发电学报,2007,26(1): 84-89. doi: 10.3969/j.issn.1003-1243.2007.01.017
WANG Hailong, LI Qingbin. Experiments of the compressive properties of dry and saturated concrete under different loading rates[J]. Journal of Hydroelectric Engineering, 2007, 26(1): 84-89. doi: 10.3969/j.issn.1003-1243.2007.01.017
|
| [7] |
LI G. The effect of moisture content on the tensile strength properties of concrete[D]. Gainesvile: University of Florida, 2004.
|
| [8] |
侯东伟,张君,陈浩宇,等. 干燥与潮湿环境下混凝土抗压强度和弹性模量发展分析[J]. 水利学报,2012,43(2): 198-208.
HOU Dongwei, ZHANG Jun, CHEN Haoyu, et al. Development of strength and elastic modulus of concrete under moisture and drying curing conditions[J]. Journal of Hydraulic Engineering, 2012, 43(2): 198-208.
|
| [9] |
孙国文,孙伟,王彩辉. 现代混凝土传输行为与其微结构之间关系的研究方法及其进展[J]. 材料导报,2018,32(17): 3010-3022. doi: 10.11896/j.issn.1005-023X.2018.17.014
SUN Guowen, SUN Wei, WANG Caihui. Relationship between the transport behavior of modern concrete and its microstructures:research methods and progress[J]. Materials Review, 2018, 32(17): 3010-3022. doi: 10.11896/j.issn.1005-023X.2018.17.014
|
| [10] |
杜修力,金浏. 细观均匀化方法预测非饱和混凝土宏观力学性质[J]. 水利学报,2013,44(11): 1317-1325,1332.
DU Xiuli, JIN Liu. Micro-scale homogenization for prediction of the macroscopic mechanical properties of unsaturated concrete[J]. Journal of Hydraulic Engineering, 2013, 44(11): 1317-1325,1332.
|
| [11] |
BERNARD O, ULM F J, LEMARCHAND E. A multiscale micromechanics-hydration model for the early-age elastic properties of cement-based materials[J]. Cement and Concrete Research, 2003, 33(9): 1293-1309. doi: 10.1016/S0008-8846(03)00039-5
|
| [12] |
王永宝,贾毅,赵人达. 基于ANSYS的混凝土内湿度场计算方法[J]. 西南交通大学学报,2017,52(1): 54-60. doi: 10.3969/j.issn.0258-2724.2017.01.008
WANG Yongbao, JIA Yi, ZHAO Renda. Calculation of internal humidity field of concrete based on ANSYS[J]. Journal of Southwest Jiaotong University, 2017, 52(1): 54-60. doi: 10.3969/j.issn.0258-2724.2017.01.008
|
| [13] |
吴梦瑶. 水环境下双块式无砟轨道材料软化分布研究[D]. 成都: 西南交通大学, 2018.
|
| [14] |
龚灵力. 自密实混凝土性能及混凝土多场耦合时变性分析研究[D]. 杭州: 浙江大学, 2010.
|
| [15] |
XI Y P, BAŽANT Z P, MOLINA L, et al. Moisture diffusion in cementitious materials moisture capacity and diffusivity[J]. Advanced Cement Based Materials, 1994, 1(6): 258-266. doi: 10.1016/1065-7355(94)90034-5
|
| [16] |
AKITA H, FUJIWARA T, OZAKA Y. A practical procedure for the analysis of moisture transfer within concrete due to drying[J]. Magazine of Concrete Research, 1997, 49(179): 129-137. doi: 10.1680/macr.1997.49.179.129
|
| [17] |
张君,侯东伟. 基于内部湿度试验的早龄期混凝土水分扩散系数求解[J]. 清华大学学报(自然科学版),2008,48(12): 2033-2035,2040. doi: 10.3321/j.issn:1000-0054.2008.12.002
ZHANG Jun, HOU Dongwei. Calculation of moisture diffusion coefficient in early age concrete from interior humidity tests[J]. Journal of Tsinghua University (Science and Technology), 2008, 48(12): 2033-2035,2040. doi: 10.3321/j.issn:1000-0054.2008.12.002
|
| [18] |
Comite Euro-International Du Beton. CEB-FIP model code 1990[S]. Lausanne: Thomas Thelford, 1993.
|
| [19] |
PERSSON B. Experimental studies on shrinkage of high-performance concrete[J]. Cement and Concrete Research, 1998, 28(7): 1023-1036. doi: 10.1016/S0008-8846(98)00068-4
|
| [20] |
蒋正武,王培铭. 等温干燥条件下混凝土内部相对湿度的分布[J]. 武汉理工大学学报,2003,25(7): 18-21. doi: 10.3321/j.issn:1671-4431.2003.07.006
JIANG Zhengwu, WANG Peiming. Internal relative humidity distribution of concrete under isothermal drying conditions[J]. Journal of Wuhan University of Technology, 2003, 25(7): 18-21. doi: 10.3321/j.issn:1671-4431.2003.07.006
|
| [21] |
KIM J K, LEE C S. Moisture diffusion of concrete considering self-desiccation at early ages[J]. Cement and Concrete Research, 1999, 29(12): 1921-1927. doi: 10.1016/S0008-8846(99)00192-1
|
| [22] |
杨明. 高等级公路沥青路面雨季施工[J]. 交通世界(工程技术),2014(20): 114-115.
|
| [23] |
CONSTANTINIDES G, ULM F J. The effect of two types of C-S-H on the elasticity of cement-based materials: results from nanoindentation and micromechanical modeling[J]. Cement and Concrete Research, 2004, 34(1): 67-80. doi: 10.1016/S0008-8846(03)00230-8
|
| [24] |
ULM F J, CONSTANTINIDES G, HEUKAMP F H. Is concrete a poromechanics materials?—a multiscale investigation of poroelastic properties[J]. Materials and Structures, 2004, 37(1): 43-58. doi: 10.1007/BF02481626
|
| [25] |
MAEKAWA K, ISHIDA T, KISHI T. Multi-scale modeling of concrete performance[J]. Journal of Advanced Concrete Technology, 2003, 1(2): 91-126. doi: 10.3151/jact.1.91
|
| [26] |
林枫,MEYER Christian. 硬化水泥浆体弹性模量细观力学模型[J]. 复合材料学报,2007,24(2): 184-189. doi: 10.3321/j.issn:1000-3851.2007.02.030
LIN Feng, MEYER Christian. Micromechanics model for the effective elastic properties of hardened cement pastes[J]. Acta Materiae Compositae Sinica, 2007, 24(2): 184-189. doi: 10.3321/j.issn:1000-3851.2007.02.030
|
| [27] |
ESHELBY J D. The determination of the elastic field of an ellipsoidal inclusion, and related problems[J]. Proceedings of the Royal Society of Series A:Mathematical and Physical Sciences, 1957, 241(1226): 376-396.
|
| [28] |
MORI T, TANAKA K. Average stress in matrix and average elastic energy of materials with misfitting inclusions[J]. Acta Metallurgica, 1973, 21(5): 571-574. doi: 10.1016/0001-6160(73)90064-3
|
| [29] |
BONACCORSI E, MERLINO S, TAYLOR H F W. The crystal structure of jennite, Ca9Si6O18(OH)6·8H2O[J]. Cement and Concrete Research, 2004, 34(9): 1481-1488. doi: 10.1016/j.cemconres.2003.12.033
|
| [30] |
BERENDSEN H J C, GRIGERA J R, STRAATSMA T P. The missing term in effective pair potentials[J]. The Journal of Physical Chemistry, 1987, 91(24): 6269-6271. doi: 10.1021/j100308a038
|
| [31] |
ALLEN A J, THOMAS J J, JENNINGS H M. Composition and density of nanoscale calcium-silicate-hydrate in cement[J]. Nature Materials, 2007, 6(4): 311-316. doi: 10.1038/nmat1871
|
| [32] |
魏鹏. 不同温度下水化硅酸钙复合材料力学性能的分子动力学研究[D]. 深圳: 深圳大学, 2017.
|
| [33] |
PELLENQ R J M, KUSHIMA A, SHAHSAVARI R, et al. A realistic molecular model of cement hydrates[J]. Proceedings of the National Academy of Sciences of the United States of America, 2009, 106(38): 16102-16107. doi: 10.1073/pnas.0902180106
|
| [34] |
DU X L, JIN L, MA G W. Macroscopic effective mechanical properties of porous dry concrete[J]. Cement and Concrete Research, 2013, 44: 87-96. doi: 10.1016/j.cemconres.2012.10.012
|
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