Effect of shaping plate apparatus on mechanical properties of 3D printed cement-based materials: Experimental and numerical studies

被引：14

作者：

Pan, Tinghong ^{[1
]}

Teng, Huaijin ^{[2
]}

Liao, Hengcheng ^{[2
]}

Jiang, Yaqing ^{[1
]}

Qian, Chunxiang ^{[2
]}

Wang, Yu ^{[1
]}

机构：

[1] Hohai Univ, Coll Mech & Mat, Nanjing 211100, Peoples R China

[2] Southeast Univ, Sch Mat Sci & Engn, Nanjing 211189, Peoples R China

来源：

CEMENT AND CONCRETE RESEARCH | 2022年 / 155卷

基金：

中国国家自然科学基金;

关键词：

3D printing cementitious material; Additive manufacturing; Shaping plate; Mechanical properties; Microstructure; Single-phase computational fluid dynamics; simulation; CONCRETE; CONSTRUCTION; PERFORMANCE; CHALLENGES; STRENGTH;

D O I：

10.1016/j.cemconres.2022.106785

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Precisely controlling the shape of the printed-layers, eliminating the curved sides and internal stress concentration, and increasing the mechanical properties are essential to guarantee the quality of 3D printed cementbased structures. This work aims at achieving the above-mentioned targets through a specially designed shaping plate apparatus. The pressure (stress) distribution in the printed structure with a shaping plate apparatus (SP-3DPC), and the cross-sectional shape, microstructure and mechanical properties of SP-3DPC were systematically investigated. Results indicate that using the shaping plate apparatus may slightly reduce the printing speed, but it can effectively constrain the free expansion of extrudate, control its cross-sectional geometry, and improve the surface finish quality and mechanical properties of the printed structure. This study provides a theoretical basis and technical guidance for the design and application of the shaping plate apparatus.

引用

页数：18

共 46 条

[1]

A. C. J. A. S. f. Testing and W. C. Materials International Pennsylvania United States, 2008, ASTM C109

[2] Environmental assessment of large-scale 3D printing in construction: A comparative study between cob and concrete [J].

Alhumayani, Hashem ;

Gomaa, Mohamed ;

Soebarto, Veronica ;

Jabi, Wassim .

JOURNAL OF CLEANER PRODUCTION, 2020, 270

[3]

[Anonymous], 2014, Standard test method for flexural strength of hydraulic-cement mortars

[4] A 3D concrete printing prefabrication platform for bespoke columns [J].

Anton, Ana ;

Reiter, Lex ;

Wangler, Timothy ;

Frangez, Valens ;

Flatt, Robert J. ;

Dillenburger, Benjamin .

AUTOMATION IN CONSTRUCTION, 2021, 122

[5]

ASTM, 2004, 496C496M04 ASTM

[6] Reinforcing digitally fabricated concrete: A systems approach review [J].

Bester, Frederick ;

van den Heever, Marchant ;

Kruger, Jacques ;

van Zijl, Gideon .

ADDITIVE MANUFACTURING, 2021, 37

[7] Additive manufacturing of concrete in construction: potentials and challenges of 3D concrete printing [J].

Bos, Freek ;

Wolfs, Rob ;

Ahmed, Zeeshan ;

Salet, Theo .

VIRTUAL AND PHYSICAL PROTOTYPING, 2016, 11 (03) :209-225

[8] 3D printing using concrete extrusion: A roadmap for research [J].

Buswell, R. A. ;

de Silva, W. R. Leal ;

Jones, S. Z. ;

Dirrenberger, J. .

CEMENT AND CONCRETE RESEARCH, 2018, 112 :37-49

[9]

Carneau P., CEMENT CONCRETE RES

[10] Large-scale 3D printing of ultra-high performance concrete - a new processing route for architects and builders [J].

Gosselin, C. ;

Duballet, R. ;

Roux, Ph. ;

Gaudilliere, N. ;

Dirrenberger, J. ;

Morel, Ph. .

MATERIALS & DESIGN, 2016, 100 :102-109

← 1 2 3 4 5 →