Self-Healing Strain-Hardening Concrete Cover (2025-04)¶

10.21012/fc12.1365

He Shan, Luković Mladena, Schlangen Erik
Contribution - Proceedings of the 12^th International Conference on Fracture Mechanics for Concrete and Concrete Structures

Abstract

An experimental study is carried out to investigate the structural behaviour and durability performance of hybrid reinforced concrete beams with U-shaped covers made via mould-casting method and 3D printing method. Structural behaviour, surface crack pattern and crack propagation between the reinforced concrete core and U-shaped SHCC cover are studied. A qualitative assessment of the crack appearance before and after healing was also performed. Findings reveal that mouldcasted SH-SHCC covers enhance crack control without compromising beam properties, offering comparable or improved load capacity and ductility under shear and flexure. Although 3D-printed covers are slightly less effective in crack control, they still improve overall performance and offer advantages in manufacturing efficiency. Both cover types effectively prevent delamination and disperse major cracks into finer, healable cracks, facilitating crack healing observed after one-month moist curing.

¶

1 References

Chen Yu, He Shan, Gan Yidong, Çopuroğlu Oğuzhan et al. (2021-11)
A Review of Printing-Strategies, Sustainable Cementitious Materials and Characterization Methods in the Context of Extrusion-Based 3D Concrete Printing

0 Citations

BibTeX

@inproceedings{he_luko_schl.2025.SHSHCC,
  author            = "Shan He and Mladena Luković and Erik Schlangen",
  title             = "Self-Healing Strain-Hardening Concrete Cover",
  doi               = "10.21012/fc12.1365",
  year              = "2025",
  booktitle         = "Proceedings of the 12th International Conference on Fracture Mechanics for Concrete and Concrete Structures",
  editor            = "Bernhard L. A. Pichler and Christian Hellmich and Philipp Preinstorfer",
}

Formatted Citation

IEEE

S. He, M. Luković and E. Schlangen, “Self-Healing Strain-Hardening Concrete Cover”, in Proceedings of the 12^th International Conference on Fracture Mechanics for Concrete and Concrete Structures, 2025. doi: 10.21012/fc12.1365.

CMOS

He, Shan, Mladena Luković, and Erik Schlangen. “Self-Healing Strain-Hardening Concrete Cover”. In Proceedings of the 12^th International Conference on Fracture Mechanics for Concrete and Concrete Structures, edited by Bernhard L. A. Pichler, Christian Hellmich, and Philipp Preinstorfer, 2025. https://doi.org/10.21012/fc12.1365.