The use of additive manufacturing in self-healing cementitious materials

The use of additive manufacturing in self-healing cementitious materials: A state-of-the-art review

Wan, Z. (TU Delft Materials and Environment)
Xu, Y. (TU Delft Materials and Environment)
He, S. (TU Delft Materials and Environment)
Schlangen, E. (TU Delft Materials and Environment)
Šavija, B. (TU Delft Materials and Environment)

2024

This paper presents a state-of-the-art review on the application of additive manufacturing (AM) in self-healing cementitious materials. AM has been utilized in self-healing cementitious materials in three ways: (1) concrete with 3D-printed capsules/vasculatures; (2) 3D concrete printing (3DCP) with fibers or supplementary cementitious materials (SCMs); and (3) a combination of (1) and (2). 3D-printed capsules/vascular systems are the most extensively investigated, which are capable of housing larger volumes of healing agents. However, due to the dimension restraints of printers, most of the printed vasculatures/capsules are in small scale, making them difficult for upscaling. Meanwhile, 3DCP shows great potential to lower the environmental footprint of concrete construction. Incorporation of fibers and SCMs helps improve the autogenous healing performance of 3DCP. Besides, 3D-printed concrete with hollow channels as the vasculature could further improve the autonomous healing and scalability of self-healing cementitious materials. Finally, possible directions for future research are discussed.

3D concrete printing
Additive manufacturing
Capsule
Self-healing cementitious materials
Vascular system

http://resolver.tudelft.nl/uuid:414f6c87-d627-4054-8023-bbb2fd5dc9b5

https://doi.org/10.1016/j.dibe.2024.100334

Developments in the Built Environment, 17

Institutional Repository

journal article

© 2024 Z. Wan, Y. Xu, S. He, E. Schlangen, B. Šavija