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喷嘴行进速度及高度对3D打印混凝土力学性能影响的试验研究

史庆轩 万胜木 王秋维 陶毅 霍建

史庆轩, 万胜木, 王秋维, 等. 喷嘴行进速度及高度对3D打印混凝土力学性能影响的试验研究[J]. 复合材料学报, 2022, 40(0): 1-13
引用本文: 史庆轩, 万胜木, 王秋维, 等. 喷嘴行进速度及高度对3D打印混凝土力学性能影响的试验研究[J]. 复合材料学报, 2022, 40(0): 1-13
Qingxuan SHI, Shengmu WAN, Qiuwei WANG, Yi TAO, Jian HUO. Experimental investigations on the influence of nozzle travel speed and height on the mechanical properties of 3D printed concrete[J]. Acta Materiae Compositae Sinica.
Citation: Qingxuan SHI, Shengmu WAN, Qiuwei WANG, Yi TAO, Jian HUO. Experimental investigations on the influence of nozzle travel speed and height on the mechanical properties of 3D printed concrete[J]. Acta Materiae Compositae Sinica.

喷嘴行进速度及高度对3D打印混凝土力学性能影响的试验研究

基金项目: 国家自然科学基金 (51878540;52178505)
详细信息
    通讯作者:

    史庆轩,博士,教授,博士生导师,研究方向为混凝土结构及其抗震研究 E-mail: shiqx@xauat.edu.cn

  • 中图分类号: TU528

Experimental investigations on the influence of nozzle travel speed and height on the mechanical properties of 3D printed concrete

Funds: National Natural Science Foundation of China (51878540; 52178505)
  • 摘要: 为研究喷嘴行进速度、喷嘴高度等打印参数对3D打印混凝土力学性能的影响,制备了相同配合比的浇筑试块和不同打印参数组合下的打印试块,通过混凝土立方体抗压试验、棱柱体轴心抗压试验和立方体劈裂抗拉试验,考察了其受力破坏过程和破坏形态,分析了喷嘴行进速度、喷嘴高度对3D打印混凝土力学性能的影响,得到了3D打印混凝土轴心受压应力-应变曲线,建立了3D打印混凝土各强度之间的关系。结果表明:3D打印混凝土立方体抗压强度、轴心抗压强度、劈裂抗拉强度均随喷嘴行进速度的加快、喷嘴高度的升高而降低,且喷嘴高度对强度的不利影响强于喷嘴行进速度;在较优打印参数组合下,打印试块的抗压强度高于浇筑试块,但因打印试块存在层间粘结弱面,其劈裂断面在其层间界面处,致使断面明显平滑,劈裂抗拉强度低于浇筑试块;通过回归分析,建立了3D打印混凝土各强度与打印参数间的函数关系,以及轴心抗压强度、劈裂抗拉强度与立方体抗压强度之间的换算关系。

     

  • 图  1  打印试块制备过程

    Figure  1.  Preparation process of printed test blocks

    图  2  3D打印混凝土力学性能试验

    Figure  2.  Mechanical properties tests of 3DPC

    图  3  3D打印混凝土立方体试块受压破坏形态

    Figure  3.  Failure patterns of cube 3DPC after compression test

    140-14 is the printed test block with nozzle travel speed of 140 mm/s and nozzle height of 14 mm, and so on, the same below

    图  4  3D打印混凝土棱柱体试块轴心受压破坏形态

    Figure  4.  Failure patterns of prism 3DPC after axial compression test

    图  5  3D打印混凝土立方体试块劈拉破坏断面

    Figure  5.  Failure sections of cube 3DPC after splitting tensile test

    图  6  喷嘴行进速度对3D打印混凝土强度的影响

    Figure  6.  Effect of nozzle travel speed on strengths of 3DPC

    图  7  喷嘴高度对3D打印混凝土强度的影响

    Figure  7.  Effect of nozzle height on strengths of 3DPC

    图  8  3D打印混凝土不同喷嘴高度下挤出示意图

    Figure  8.  Schematic diagram of extrusion of 3DPC under different nozzle heights

    图  9  3D打印混凝土强度与打印参数的关系

    Figure  9.  Relationship between strengths of 3DPC and printed parameters

    图  10  3D打印混凝土棱柱体轴心受压应力-应变曲线

    Figure  10.  Axial stress-strain curves of 3DPC prisms

    图  11  打印参数对3D打印混凝土峰值应变的影响

    Figure  11.  Effect of printed parameters on peak strain of 3DPC

    图  12  打印参数对3D打印混凝土弹性模量的影响

    Figure  12.  Effect of printed parameters on elastic modulus of 3DPC

    图  13  3D打印混凝土弹性模量与轴心抗压强度的关系

    Figure  13.  Relationship between elastic modulus and axial compressive strength of 3DPC

    图  14  3D打印混凝土轴心抗压强度与立方体抗压强度的关系

    Figure  14.  Relationship between axial compressive strength and cubic compressive strength of 3DPC

    图  15  3D打印混凝土劈裂抗拉强度与立方体抗压强度的关系

    Figure  15.  Relationship between splitting tensile strength and cubic compressive strength of 3DPC

    表  1  3D打印混凝土配合比

    Table  1.   Mix proportion of 3D printed concrete (3DPC)

    P•O42.5R•SAC42.5SandPCEHPMCGFWater
    0.80.21.250.25%0.15%0.5%0.35
    Notes: P•O42.5—Ordinary portland cement; R•SAC42.5—
    Sulphoaluminate early-strength cement; PCE—Polycarboxylic acid superplasticizer; HPMC—Hydroxypropyl methyl cellulose; GF—Glass fiber.
    下载: 导出CSV

    表  2  3D打印混凝土各项力学性能指标

    Table  2.   Mechanical property indexes of 3DPC

    Sample
    No.
    $ {f_{{\text{cu}}}}/{\text{MPa}} $$ {f_{\text{c}}}/{\text{MPa}} $$ {f_{\text{t}}}/{\text{MPa}} $$ {\varepsilon _{\text{0}}}/{10^{_{ - 3}}} $$ {E_{\text{c}}}/{\text{GPa}} $fc/fcuft/fcu
    110-1445.6435.792.582.2615.770.780.06
    110-1743.5933.972.352.3114.960.780.05
    110-2039.8630.102.061.8214.260.760.05
    120-1444.2133.522.512.9616.020.760.06
    120-1742.9030.912.292.5014.160.720.05
    120-2037.9827.151.931.9415.140.710.05
    130-1443.9932.512.372.6015.610.740.05
    130-1741.3728.342.111.7314.500.690.05
    130-2035.2425.901.682.6314.020.730.05
    140-1442.8431.612.282.6714.630.740.05
    140-1739.4527.061.802.9516.250.690.05
    140-2033.7823.931.492.3113.440.710.04
    150-1441.5930.581.992.6614.300.740.05
    150-1738.0926.751.652.7313.670.700.04
    150-2031.1021.521.152.3312.590.690.04
    Cast42.8234.033.042.1816.520.790.07
    Notes: $ {f_{{\text{cu}}}} $—Cubic compressive strength; $ {f_{\text{c}}} $—Axial compressive strength; $ {f_{\text{t}}} $—Splitting tensile strength; $ {\varepsilon _{\text{0}}} $—Peak strain; $ {E_{\text{c}}} $—Elastic modulus.
    下载: 导出CSV
  • [1] WANGLER T, LLORET E, REITER L, et al. Digital Concrete: Opportunities and Challenges[J]. RILEM Technical Letters,2016,1:67-75. doi: 10.21809/rilemtechlett.2016.16
    [2] SCHUTTER G D, LESAGE K, MECHTCHERINE V, et al. Vision of 3D printing with concrete-Technical, economic and environmental potentials[J]. Cement and Concrete Research,2018,112:25-36. doi: 10.1016/j.cemconres.2018.06.001
    [3] 赵颖, 刘维胜, 王欢, 等. 石灰石粉对3 D打印水泥基材料性能的影响[J]. 材料导报, 2020, 34(36):217-220.

    ZHAO Ying, LIU Weisheng, WANG Huan, et al. Influence of Limestone Powder on Performances of 3 D Printing Cementitious Materials[J]. Materials Reports,2020,34(36):217-220(in Chinese).
    [4] 马国伟, 柴艳龙, 王里, 等. 3 D打印陶砂混凝土的制备与力学性能测试[J]. 实验力学, 2020, 35(1):58-66.

    MA Guowei, CAI Yanlong, WANG Li, et al. Preparation and mechanical properties testing of 3 D printed ceramic sand lightweight concrete[J]. Journal of Experimental Mechanics,2020,35(1):58-66(in Chinese).
    [5] LE T T, AUSTIN S A, LIM S, et al. Mix design and fresh properties for high-performance printing concrete[J]. Materials and Structures,2012,45:1221-1232. doi: 10.1617/s11527-012-9828-z
    [6] PANDA B, TAN M J. Experimental study on mix proportion and fresh properties of fly ash based geopolymer for 3D concrete printing[J]. Ceramics International,2018,44(9):10258-10265. doi: 10.1016/j.ceramint.2018.03.031
    [7] PHAM L, TRAN P, SANJAYAN J. Steel fibres reinforced 3 D printed concrete: Influence of fibre sizes on mechanical performance[J]. Construction and Building Materials,2020,250:1-13.
    [8] ZHANG J C, WANG J L, DONG S F, et al. A review of the current progress and application of 3 D printed concrete[J]. Composites Part A,2019,125:1-13.
    [9] 岳健广, 张怀奎, 仝飞. 3D打印混凝土硬化后断裂机理试验研究[J]. 建筑结构学报, 2021:1-12.

    YUE Jianguang, ZHANG Huaikui, TONG Fei. Fracture mechanism experimental studyof hardened 3D printed concrete[J]. Journal of Building Structures,2021:1-12(in Chinese).
    [10] PANDA B, PAUL S C, MOHAMED N A N, et al. Measurement of tensile bond strength of 3D printed geopolymer mortar[J]. Measurement,2018,113:108-116. doi: 10.1016/j.measurement.2017.08.051
    [11] TAY Y W D, TING G H A, QIAN Y, et al. Time gap effect on bond strength of 3D-printed concrete[J]. Virtual and Physical Prototyping,2019,14:1-11. doi: 10.1080/17452759.2018.1518016
    [12] LE T T, AUSTIN S A, LIM S, et al. Hardened properties of high-performance printing concrete[J]. Cement and Concrete Research,2012,42:558-566. doi: 10.1016/j.cemconres.2011.12.003
    [13] SANJAYAN J G, NEMATOLLAHI B, XIA M, et al. Effect of surface moisture on inter-layer strength of 3D printed concrete[J]. Construction and Building Materials,2018,172:468-475. doi: 10.1016/j.conbuildmat.2018.03.232
    [14] WOLFS R J M, BOS F P, SALET T A M. Hardened properties of 3D printed concrete: The influence of process parameters on interlayer adhesion[J]. Cement and Concrete Research,2019,119:132-140. doi: 10.1016/j.cemconres.2019.02.017
    [15] 刘致远, 王振地, 王玲, 等. 3D打印水泥净浆层间拉伸强度及层间剪切强度[J]. 硅酸盐学报, 2019, 47(5):648-652.

    LIU Zhiyuan, WANG Zhendi, WANG Ling, et al. Interlayer Bond Strength of 3D Printing Cement Paste by Cross-Bonded Method[J]. Journal of the Chinese Ceramic Society,2019,47(5):648-652(in Chinese).
    [16] 混凝土物理力学性能试验方法标准: GB/T 50081—2019[S]. 北京: 中国建筑工业出版社.

    Standard for test methods of concrete physical and mechanical properties: GB/T 50081—2019[S]. Beijing: China Architecture & Building Press, 2019. (in Chinese)
    [17] 王晖. 耐碱玻璃纤维混凝土力学性能试验研究[D]. 西安: 西安建筑科技大学, 2016: 3-9.

    WANG Hui. Experimental Study on Mechanical Properties of Alkali-Resistance Glass Fiber Reinforced Concrete[D]: Xian: Xi'an University of Architecture & Technology, 2016: 3-9. (in Chinese)
    [18] HOSSEINI E, ZAKERTABRIZI M, KORAYEM A H, et al. A novel method to enhance the interlayer bonding of 3D printing concrete: An experimental and computational investigation[J]. Cement and Concrete Composites,2019,99:112-119. doi: 10.1016/j.cemconcomp.2019.03.008
    [19] MOINI M, OLEK J, MAGEE B, et al. Additive manufacturing and characterization of architectured cement-based materials via X-ray micro-computed tomography[J]. RILEM Bookseries,2019,19:176-189.
    [20] TAY Y W D, LI M Y, TAN M J. Effect of printing parameters in 3D concrete printing: Printing region and support structures[J]. Journal of Materials Processing Technology,2019,271:261-270. doi: 10.1016/j.jmatprotec.2019.04.007
    [21] VAN DER PUTTEN J, DE SCHUTTER G, VAN TITTELBOOM K. The effect of print parameters on the (micro) structure of 3D printed cementitious materials[J]. RILEM Bookseries,2019,19:234-244.
    [22] 程文博. 打印参数对3D打印水泥基材料施工性能的影响[J]. 北京:北京交通大学, 2020:21-31.

    CHEN Wenbo. Effect of Printing Parameters on the Construction Performance of 3D Printing Cement-based Materials[J]. Beijing:Beijing Jiaotong University,2020:21-31(in Chinese).
    [23] PANDA B, MOHAMEL N A, PAUL S C, et al. The Effect of Material Fresh Properties and Process Parameters on Buildability and Interlayer Adhesion of 3D Printed Concrete[J]. Materials,2019,12:1-12.
    [24] PERROT A, RANGEARD D, PIERRE A. Structural built-up of cement-based materials used for 3D-printing extrusion techniques[J]. Materials and Structures,2016,49:1213-1220. doi: 10.1617/s11527-015-0571-0
    [25] 过镇海, 时旭东. 钢筋混凝土原理和分析[J]. 北京:清华大学出版社, 2003:16-17.

    GUO Zhenhai, SHI Xudong. Reinforced Concrete Theory and Analyse[J]. Beijing:Tsinghua university press,2003:16-17(in Chinese).
    [26] 混凝土结构设计规范: GB 50010—2010[S]. 北京: 中国建筑工业出版社, 2010.

    Code for design of concrete structures: GB 50010—2010[S]. Beijing: China Architecture & Building Press, 2010. (in Chinese)
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出版历程
  • 收稿日期:  2022-04-25
  • 录用日期:  2022-05-27
  • 修回日期:  2022-05-19
  • 网络出版日期:  2022-06-16

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