A self-reinforced cementitious composite for building-scale 3D printing

By Daniel G. Soltan, Victor C. Li. Cement & Concrete Composites, 2018

301 citations recorded by the source corpus.

Abstract A design scheme for self-reinforced cementitious composites to be used for building-scale 3D printing processes is introduced. The design is based on that of engineered cementitious composites, which include dispersed short polymer fibers to generate robust tensile strain-hardening. The mechanical property profile of these printable ECC materials is meant to eliminate the need for steel reinforcement in printed structures, providing more freedom and efficiency for building-scale 3D printing processes. The fresh state rheological properties have been systematically manipulated to allow printability. Effects on fresh state workability of several compositional ingredients and processing parameters are investigated herein. To maintain consistent printing performance with a batch mixing approach, thixotropy in the fresh state is exploited to temporarily decouple hardening behavior from the processing timeline. Minimal workability loss under continued shear agitation is achieved. Mechanical properties of the printable materials are characterized and the printability of the materials is demonstrated.

Subfields: Automotive Engineering, Building and Construction, Civil and Structural Engineering

View Paper: https://www.semanticscholar.org/paper/90923a5ad3079d9d84b6c9a2d12dfa8813fbad83

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Automotive Engineering

1. Jianzhuang Xiao
2. Z. Duan
3. G. V. van Zijl
4. V. Mechtcherine
5. Fred Bos
6. Shaodan Hou
7. Jun Ye
8. Tam Theo Salet

In Building and Construction

1. Jianzhuang Xiao
2. V. Mechtcherine
3. Z. Duan
4. Kequan Yu
5. G. V. van Zijl
6. Fred Bos
7. Shaodan Hou
8. Jinlong Pan

In Civil and Structural Engineering

1. V. Mechtcherine
2. Jianzhuang Xiao
3. Jinlong Pan
4. Z. Duan
5. Kequan Yu
6. Fred Bos
7. Tam Theo Salet
8. Shaodan Hou

Citations in the corpus

• On the emergence of 3D printable Engineered, Strain Hardening Cementitious Composites (ECC/SHCC) (2020, methodology): “Similar to [12], the mixture was extruded by a manually operated caulk gun, which had an opening of 10 mm.”
• Ductility of 3D printed concrete reinforced with short straight steel fibers (2018, background): “Furthermore, printable engineered cementitious composites (ECCs) and strain-hardening cementitious composites (SHCCs) and are under development, as shown by Soltan and Li (2018) and Ogura, Nerella, and Mechtcherine (2018).”