Effects of Fibers on Printing Performance and Mechanical Properties of 3D Printing Concrete

Abstract

Abstract: In order to investigate the effects of fiber on the performance of 3D printing concrete (3DPC), the influence of fiber on the rheological properties, printing properties, mechanical properties, and pore structure of 3DPC were studied by adding PVA fiber, PP fiber, and sisal fiber. The result of the rheological property test shows that the static yield stress of 3DPC increases linearly with the content of three kinds of fiber, but the influence of fiber on the rheological property of 3DPC is different. The results of printing performance test indicate that the addition of PVA fiber reduces the extrudability of 3DPC, but it significantly improves the size uniformity of extruded concrete. The test results of mechanical properties and pore structure point out that PP fiber significantly improves the compressive strength of 3DPC, sisal fiber has the most significant strengthening effect on the flexural strength of 3DPC, and the increase of fiber content will reduce the apparent density of 3DPC and increase the internal porosity, resulting in the reinforcement effect of high fiber content is weaker than that of low fiber content.

Key words: 3D printing concrete, fiber, rheological performance, printing performance, mechanical property, pore structure

CLC Number:

TU528

ZHANG Chao, DENG Zhicong, WANG Zhibin, HOU Zeyu, JIA Zijian, WANG Xianggang, JIA Lutao, CHEN Chun, SUN Zhengming, ZHANG Yamei, PAN Jinlong. Effects of Fibers on Printing Performance and Mechanical Properties of 3D Printing Concrete[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(6): 1870-1878.

References

[1] 石从黎,林宗浩,陈敬,等.3D打印混凝土技术的初探[J].重庆建筑,2017,16(3):24-27.
SHI C L, LIN Z H, CHEN J, et al. Preliminary study on 3D printing technology for concrete[J]. Chongqing Architecture, 2017, 16(3): 24-27 (in Chinese).
[2] LEE J Y, AN J, CHUA C K. Fundamentals and applications of 3D printing for novel materials[J]. Applied Materials Today, 2017, 7: 120-133.
[3] ZHANG J C, WANG J L, DONG S F, et al. A review of the current progress and application of 3D printed concrete[J]. Composites Part A: Applied Science and Manufacturing, 2019, 125: 105533.
[4] 王里,王伯林,白刚,等.3D打印混凝土各向异性力学性能研究[J].实验力学,2020,35(2):243-250.
WANG L, WANG B L, BAI G, et al. Experimental study on the mechanical anisotropy of 3D printed concrete[J]. Journal of Experimental Mechanics, 2020, 35(2): 243-250 (in Chinese).
[5] LIM S, BUSWELL R A, LE T T, et al. Developments in construction-scale additive manufacturing processes[J]. Automation in Construction, 2012, 21: 262-268.
[6] PERKINS I, SKITMORE M. Three-dimensional printing in the construction industry: a review[J]. International Journal of Construction Management, 2015, 15: 1-9.
[7] ZHANG C, HOU Z Y, CHEN C, et al. Design of 3D printable concrete based on the relationship between flowability of cement paste and optimum aggregate content[J]. Cement and Concrete Composites, 2019, 104: 103406.
[8] BUSWELL R A, LEAL DE SILVA W R, JONES S Z, et al. 3D printing using concrete extrusion: a roadmap for research[J]. Cement and Concrete Research, 2018, 112: 37-49.
[9] DE SCHUTTER G, 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.
[10] 王香港,王申,贾鲁涛,等.3D打印混凝土技术在新冠肺炎防疫方舱中的应用[J].混凝土与水泥制品,2020(4):1-4+13.
WANG X G, WANG S, JIA L T, et al. Application of 3D printing technology in epidemic prevention cabins during the outbreak of COVID-19[J]. China Concrete and Cement Products, 2020(4): 1-4+13 (in Chinese).
[11] MECHTCHERINE V, NERELLA V N, WILL F, et al. Large-scale digital concrete construction-CONPrint3D concept for on-site, monolithic 3D-printing[J]. Automation in Construction, 2019, 107: 102933.
[12] LU B, WENG Y W, LI M Y, et al. A systematical review of 3D printable cementitious materials[J]. Construction and Building Materials, 2019, 207: 477-490.
[13] MOELICH G M, KRUGER J, COMBRINCK R. Plastic shrinkage cracking in 3D printed concrete[J]. Composites Part B: Engineering, 2020, 200: 108313.
[14] PANDA B, CHANDRA PAUL S, JEN TAN M. Anisotropic mechanical performance of 3D printed fiber reinforced sustainable construction material[J]. Materials Letters, 2017, 209: 146-149.
[15] MA G W, LI Z J, WANG L, et al. Mechanical anisotropy of aligned fiber reinforced composite for extrusion-based 3D printing[J]. Construction and Building Materials, 2019, 202: 770-783.
[16] SHAKOR P, NEJADI S, PAUL G. A study into the effect of different nozzles shapes and fibre-reinforcement in 3D printed mortar[J]. Materials, 2019, 12(10): 1708.
[17] 占羿箭.纤维增强3D打印混凝土受剪破坏数值模拟[J].江西科学,2017,35(6):927-932.
ZHAN Y J. Numerical simulation of the failure behavior of 3D-printed concrete with fiber reinforcement[J]. Jiangxi Science, 2017, 35(6): 927-932 (in Chinese).
[18] 孙晓燕,汪群,王海龙,等.多壁碳纳米管对3D打印混凝土性能影响试验研究[J].新型建筑材料,2020,47(1):27-29+37.
SUN X Y, WANG Q, WANG H L, et al. Study on effect of multi-walled nanotubes(MWNTs) on properties of 3D printing concrete[J]. New Building Materials, 2020, 47(1): 27-29+37 (in Chinese).[19] 汪群,高超.PVA纤维在3D打印混凝土中的应用研究[J].低温建筑技术,2019,41(4):3-6.
WANG Q, GAO C. Study on the application of PVA fiber in 3D printing concrete[J]. Low Temperature Architecture Technology, 2019, 41(4): 3-6 (in Chinese).
[20] LONG W J, TAO J L, LIN C, et al. Rheology and buildability of sustainable cement-based composites containing micro-crystalline cellulose for 3D-printing[J]. Journal of Cleaner Production, 2019, 239: 118054.
[21] PAUL S C, TAY Y W D, PANDA B, et al. Fresh and hardened properties of 3D printable cementitious materials for building and construction[J]. Archives of Civil and Mechanical Engineering, 2018, 18(1): 311-319.