A rheological-based printability assessment method for 3D printing Engineered Cementitious Composites considering fiber dispersion

被引：5

作者：

Pi, Yilin ^{[1
]}

Lu, Cong ^{[1
]}

Yao, Yiming ^{[1
]}

Li, Baoshan ^{[1
]}

机构：

[1] Southeast Univ, Sch Civil Engn, Nanjing 211189, Peoples R China

来源：

CASE STUDIES IN CONSTRUCTION MATERIALS | 2024年 / 20卷

基金：

中国国家自然科学基金;

关键词：

3D printing; Fiber dispersion; Engineered Cementitious Composites (ECC); Printability; Rheological theory; MECHANICAL-PROPERTIES; BEHAVIOR;

D O I：

10.1016/j.cscm.2024.e02898

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

3D concrete printing (3DCP) presents unique challenges in optimizing rheological properties of concrete mixture, while tailoring the rheology of Engineered Cementitious Composites (ECC) for 3D printing (3DP-ECC) is more intricate due to the added complexity of fiber dispersion. This study proposes an innovative printability evaluation method specifically designed for 3DP-ECC, which takes into account the impact of fiber dispersion while also emphasizing costeffectiveness and efficiency. Additionally, the proposed method enables the calculation of the printable open time, thus adjusting the mixing time of the ECC paste. The feasibility of the proposed method was verified through actual printing test and rheological test, and experimental results showed good agreement with theoretical results. The tensile performance of 3DP-ECC was also investigated, providing further validation for the proposed methodology.

引用

页数：12

共 33 条

[1] Experimental Investigation Of Basalt Textile Reinforced Engineered Cementitious Composite Under Apparent Hoop Tensile Loading [J].

Al-Gemeel, Ali N. ;

Zhuge, Yan ;

Youssf, Osama .

JOURNAL OF BUILDING ENGINEERING, 2019, 23 :270-279

[2] Use of hollow glass microspheres and hybrid fibres to improve the mechanical properties of engineered cementitious composite [J].

Al-Gemeel, Ali N. ;

Yan Zhuge ;

Youssf, Osama .

CONSTRUCTION AND BUILDING MATERIALS, 2018, 171 :858-870

[3] Development of composites for 3D printing with reduced cement consumption [J].

Barbosa, Marcella S. ;

Anjos, Marcos A. S. dos ;

Cabral, Kleber C. ;

Dias, Leonardo S. .

CONSTRUCTION AND BUILDING MATERIALS, 2022, 341

[4] Scale effects in prestressed concrete structures: Maximum reinforcement percentage to avoid brittle crushing [J].

Carpinteri, Alberto ;

Accornero, Federico ;

Cafarelli, Renato .

ENGINEERING STRUCTURES, 2022, 255

[5] Mechanical behavior of a novel precast beam-to-column connection with U-shaped bars and engineered cementitious composites [J].

Dong, Bingqing ;

Lu, Cong ;

Pan, Jinlong ;

Shan, Qifeng ;

Yin, Wanyun .

ADVANCES IN STRUCTURAL ENGINEERING, 2018, 21 (13) :1963-1976

[6] Numerical simulation of self-consolidating engineered cementitious composite flow with the V-funnel and U-box [J].

Hai Tran Thanh ;

Li, Jianchun ;

Zhang, Y. X. .

CONSTRUCTION AND BUILDING MATERIALS, 2020, 236

[7] Highly accurate and automatic semantic segmentation of multiple cracks in engineered cementitious composites (ECC) under dual pre-modification deep-learning strategy [J].

Hao, Zhexin ;

Lu, Cong ;

Li, Zhenghao .

CEMENT AND CONCRETE RESEARCH, 2023, 165

[8] Thermal-dependent brittleness effect of ultra-high performance concrete exposed to cryogenic flexural loads by acoustic emission evaluation [J].

He, Bei ;

Zhang, Hongen ;

Zhu, Xinping ;

Zheng, Qiaomu ;

Onuaguluchi, Obinna ;

Banthia, Nemkumar ;

Jiang, Zhengwu .

CEMENT & CONCRETE COMPOSITES, 2023, 139

[9] Crack width control and mechanical properties of low carbon engineered cementitious composites (ECC) [J].

Hou, Mengjun ;

Zhang, Duo ;

Li, Victor C. .

CONSTRUCTION AND BUILDING MATERIALS, 2022, 348

[10] Validation of BTRHEOM, the new rheometer for soft-to-fluid concrete [J].

Hu, C ;

de Larrard, F ;

Sedran, T ;

Boulay, C ;

Bosc, F ;

Deflorenne, F .

MATERIALS AND STRUCTURES, 1996, 29 (194) :620-631

← 1 2 3 4 →