Characterization of mechanical and photocatalytic performance on cement-based materials with TiO2 particles for binder jet 3D printing

바인더젯 3D 프린팅을 위한 TiO2 입자를 함유한 시멘트 기반 재료의 기계적 성능 및 광촉매 특성 분석

  • Published : 2023.11.10

Abstract

The development of advanced 3D printing technologies has opened up new opportunities for customized digital designs in the construction industry. Using nano- and micro-scale additives is expected to improve the performance of cement-based materials in 3D printing. TiO2 particles have been widely used as reinforcing additives in cement-based materials. Therefore, this study aims to investigate the application of cement-based materials containing multi-size TiO2 particles in binder jet 3D printing and the effect of different-size TiO2 particles on the performance of printed samples. TiO2 particles exhibit an excellent filling effect, which increases the density of the printed samples and promotes hydration, thereby improving the compressive strength of the samples. In addition, larger TiO2 particles exert more pronounced filling and photocatalytic effects on the resulting samples.

Keywords

Acknowledgement

본 연구는 국토교통부/국토교통과학기술진흥원의 지원으로 수행되었음 (과제번호 23NANO-C156177-04)

References

  1. F. Hamidi, F. Aslani. Additive manufacturing of cementitious composites: materials, methods, potentials, and challenges. Construct. Build. Mater. 2019. p. 582-609.
  2. A. Folli, I. Pochard, A. Nonat, U.H. Jakobsen, A.M. Shepherd, D.E. Macphee, Engineering photocatalytic cements: understanding TiO2 surface chemistry to control and modulate photocatalytic performances, J. Am. Ceram. Soc. 2010. p. 3360-3369.