A (p)review: Adhesion of printcrete for tunnel structures
The construction of tunnel structures is a labor-intensive and challenging process, particularly in extreme environments such as high geothermal zones or cold regions, where human presence is often unsuitable or even hazardous. These conditions call for innovative construction techniques that can mi...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-07-01
|
| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509525006515 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849434750083661824 |
|---|---|
| author | Yaxin Tao Li Wang Timothy Wangler Karel Lesage Geert De Schutter Kim Van Tittelboom Yong Yuan |
| author_facet | Yaxin Tao Li Wang Timothy Wangler Karel Lesage Geert De Schutter Kim Van Tittelboom Yong Yuan |
| author_sort | Yaxin Tao |
| collection | DOAJ |
| description | The construction of tunnel structures is a labor-intensive and challenging process, particularly in extreme environments such as high geothermal zones or cold regions, where human presence is often unsuitable or even hazardous. These conditions call for innovative construction techniques that can minimize on-site human intervention. Digital fabrication with concrete, particularly through 3D concrete printing, presents a transformative potential for automating the construction of tunnel structures. Unlike conventional methods such as mold-casting or shotcrete, which inherently ensure good adhesion between the material and the rock substrate, extrusion-based printable concrete (printcrete) faces significant challenges in achieving satisfactory adhesion, especially during its fresh and early hardening stages. Adhesion performance is critical for the structural integrity of printed tunnel structures, and a deeper understanding of this aspect is necessary. To this end, this paper consolidates prior research, focusing on three interacting components influencing the adhesion: the substrate, the printcrete, and any bonding agent at the interface. Based on these studies, the paper further discusses the unique adhesion challenges encountered in tunnel construction using printcrete and presents potential solutions. |
| format | Article |
| id | doaj-art-3d404ba2f5784a958708c1e4f77e2011 |
| institution | Kabale University |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-3d404ba2f5784a958708c1e4f77e20112025-08-20T03:26:31ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e0485310.1016/j.cscm.2025.e04853A (p)review: Adhesion of printcrete for tunnel structuresYaxin Tao0Li Wang1Timothy Wangler2Karel Lesage3Geert De Schutter4Kim Van Tittelboom5Yong Yuan6Department of Geotechnical Engineering, Tongji University, Shanghai, China; Department of Structural Engineering and Building Materials, Ghent University, Ghent, Belgium; Institute for Building Materials, ETH Zurich, Zurich, SwitzerlandSchool of Civil and Transportation Engineering, Hebei University of Technology, Tianjin, China; Corresponding authors.Institute for Building Materials, ETH Zurich, Zurich, SwitzerlandDepartment of Structural Engineering and Building Materials, Ghent University, Ghent, BelgiumDepartment of Structural Engineering and Building Materials, Ghent University, Ghent, BelgiumDepartment of Structural Engineering and Building Materials, Ghent University, Ghent, BelgiumDepartment of Geotechnical Engineering, Tongji University, Shanghai, China; Corresponding authors.The construction of tunnel structures is a labor-intensive and challenging process, particularly in extreme environments such as high geothermal zones or cold regions, where human presence is often unsuitable or even hazardous. These conditions call for innovative construction techniques that can minimize on-site human intervention. Digital fabrication with concrete, particularly through 3D concrete printing, presents a transformative potential for automating the construction of tunnel structures. Unlike conventional methods such as mold-casting or shotcrete, which inherently ensure good adhesion between the material and the rock substrate, extrusion-based printable concrete (printcrete) faces significant challenges in achieving satisfactory adhesion, especially during its fresh and early hardening stages. Adhesion performance is critical for the structural integrity of printed tunnel structures, and a deeper understanding of this aspect is necessary. To this end, this paper consolidates prior research, focusing on three interacting components influencing the adhesion: the substrate, the printcrete, and any bonding agent at the interface. Based on these studies, the paper further discusses the unique adhesion challenges encountered in tunnel construction using printcrete and presents potential solutions.http://www.sciencedirect.com/science/article/pii/S2214509525006515Extrusion-based 3D concrete printingPrintcreteAutomated constructionTunnel structuresAdhesionInterface |
| spellingShingle | Yaxin Tao Li Wang Timothy Wangler Karel Lesage Geert De Schutter Kim Van Tittelboom Yong Yuan A (p)review: Adhesion of printcrete for tunnel structures Case Studies in Construction Materials Extrusion-based 3D concrete printing Printcrete Automated construction Tunnel structures Adhesion Interface |
| title | A (p)review: Adhesion of printcrete for tunnel structures |
| title_full | A (p)review: Adhesion of printcrete for tunnel structures |
| title_fullStr | A (p)review: Adhesion of printcrete for tunnel structures |
| title_full_unstemmed | A (p)review: Adhesion of printcrete for tunnel structures |
| title_short | A (p)review: Adhesion of printcrete for tunnel structures |
| title_sort | p review adhesion of printcrete for tunnel structures |
| topic | Extrusion-based 3D concrete printing Printcrete Automated construction Tunnel structures Adhesion Interface |
| url | http://www.sciencedirect.com/science/article/pii/S2214509525006515 |
| work_keys_str_mv | AT yaxintao apreviewadhesionofprintcretefortunnelstructures AT liwang apreviewadhesionofprintcretefortunnelstructures AT timothywangler apreviewadhesionofprintcretefortunnelstructures AT karellesage apreviewadhesionofprintcretefortunnelstructures AT geertdeschutter apreviewadhesionofprintcretefortunnelstructures AT kimvantittelboom apreviewadhesionofprintcretefortunnelstructures AT yongyuan apreviewadhesionofprintcretefortunnelstructures AT yaxintao previewadhesionofprintcretefortunnelstructures AT liwang previewadhesionofprintcretefortunnelstructures AT timothywangler previewadhesionofprintcretefortunnelstructures AT karellesage previewadhesionofprintcretefortunnelstructures AT geertdeschutter previewadhesionofprintcretefortunnelstructures AT kimvantittelboom previewadhesionofprintcretefortunnelstructures AT yongyuan previewadhesionofprintcretefortunnelstructures |