A study of the effects of MWCNTs on the fresh and hardened state properties of 3D printable concrete
Source abstract
Abstract
Much research in 3D concrete printing focuses on material design and testing new additives to improve performance. However, there are very few examples of studies using carbon nanomaterials to improve mechanical performance and create smart mortars with self-sensing capabilities. 3D concrete printing is a new technology that focuses on optimizing the building industry, a composition able to monitor structural health can provide important insights into stress levels and microcrack concentration in critical structural parts. In this study, multi-walled carbon nanotubes (MWCNTs) were embedded in a printable concrete, and its self-sensing ability was investigated. Four compositions with different concentrations of MWCNTs were prepared to assess the porosity distribution and mechanical properties in the fresh and hardened states. To evaluate the self-sensing ability of the material, the change in conductivity was measured using a resistivity meter with a four-point Wenner probe, while the material was tested under compression and tension. The results showed that porosity, strongly influenced by the distribution of nanomaterials in the matrix, had a significant effect on the fresh and hardened state behavior and self-sensing ability of the compositions, and the composition with better self-sensing capabilities was the one with a MWCNTs content of 0.5% per binder content.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Innovations in Concrete and Construction Materials · Additive Manufacturing and 3D Printing Technologies · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (68)
Show source-provided references
1. Durability properties of 3D printed concrete (3DPC)10.1016/j.autcon.2022.104479 ↗
2. Additive manufacturing of concrete in construction: potentials and challenges of 3D concrete printing10.1080/17452759.2016.1209867 ↗
3. A review of 3D concrete printing systems and materials properties: current status and future research prospects10.1108/RPJ-09-2016-0154 ↗
4. Structural stay-in-place formwork for robotic in situ fabrication of non-standard concrete structures: a real scale architectural demonstrator10.1016/j.autcon.2020.103197 ↗
5. 3-D printing of concrete: beyond horizons10.1016/j.cemconres.2020.106070 ↗
6. Large-scale 3D printing concrete technology: current status and future opportunities10.1016/j.cemconcomp.2021.104115 ↗
7. Modified 3D printed powder to cement-based material and mechanical properties of cement scaffold used in 3D printing10.1016/j.conbuildmat.2017.02.037 ↗
8. Mechanical properties and deformation behaviour of early age concrete in the context of digital construction10.1016/j.compositesb.2019.02.040 ↗
9. Mechanical behavior of printed strain hardening cementitious composites10.3390/ma13102253 ↗
10. Rheological requirements for printable concretes10.1016/j.cemconres.2018.04.005 ↗
11. Assessment of materials, design parameters and some properties of 3D printing concrete mixtures; a state-of-the-art review10.1016/j.conbuildmat.2021.125865 ↗
12. Effect of processing on the air void system of 3D printed concrete10.1016/j.cemconres.2022.106789 ↗
13. Incorporation and characterization of multi-walled carbon nanotube concrete composites for 3D printing applications
14. Carbon science perspective in 2022: Current research and future challenges10.1016/j.carbon.2022.04.015 ↗
15. Carbon nanotube reinforced cementitious composites: an overview10.1016/j.compositesa.2016.10.020 ↗
16. Mechanical properties and microstructure of multi-walled carbon nanotube-reinforced cement paste10.1016/j.conbuildmat.2014.11.049 ↗
17. Intrinsic self-sensing concrete and structures: a review10.1016/j.measurement.2014.09.048 ↗
18. Cement based sensors with carbon fibers and carbon nanotubes for piezoresistive sensing10.1016/j.cemconcomp.2012.04.007 ↗
19. Smart self-sensing concrete: the use of multiscale carbon fillers10.1007/s10853-021-06732-1 ↗
20. Electrical conductivity and piezo-resistive characteristics of CNT and CNF incorporated cementitious nanocomposites under static and dynamic loading10.1016/j.compositesa.2017.05.018 ↗
21. Effects of CNT concentration level and water/cement ratio on the piezoresistivity of CNT/cement composites10.1177/0021998311401114 ↗
22. Conductivity of carbon fiber reinforced cement-based composites10.1016/S0958-9465(02)00138-5 ↗
23. Ultraductile cementitious structural health monitoring coating: waterborne polymer biomimetic muscle and polyhedral oligomeric silsesquioxane-assisted C-S-H dispersion10.1002/adfm.202208676 ↗
24. Earthquake-induced damage detection and localization in masonry structures using smart bricks and Kriging strain reconstruction: a numerical study10.1002/eqe.3148 ↗
25. Self-sensing of carbon nanofiber concrete columns subjected to reversed cyclic loading10.1088/0964-1726/20/8/085031 ↗
26. A self-sensing carbon nanotube/cement composite for traffic monitoring10.1088/0957-4484/20/44/445501 ↗
27. Integration and road tests of a self-sensing CNT concrete pavement system for traffic detection
28. Electrical resistivity reduction with pitch-based carbon fiber into multi-walled carbon nanotube (MWCNT)-embedded cement composites10.1016/j.conbuildmat.2017.12.205 ↗
29. Investigations on scalable fabrication procedures for self-sensing carbon nanotube cement-matrix composites for SHM applications10.1016/j.cemconcomp.2015.11.001 ↗
30. Structural health monitoring methods, dispersion of fibers, micro and macro structural properties, sensing, and mechanical properties of self-sensing concrete—a review10.1002/suco.202000337 ↗
31. An experimental study of self-sensing concrete enhanced with multi-wall carbon nanotubes in wedge splitting test and DIC10.1016/j.conbuildmat.2020.120871 ↗
32. Rethinking reinforcement for digital fabrication with concrete10.1016/j.cemconres.2018.05.020 ↗
33. An ab initio approach for thixotropy characterisation of (nanoparticle-infused) 3D printable concrete10.1016/j.conbuildmat.2019.07.078 ↗
34. User manual Schleibinger Viskomat NT and Viskomat XL, 2019. 〈http://www.schleibinger.com/cmsimple/downloads/manual_Viskomat_EN.pdf〉.
35. Early age mechanical behaviour of 3D printed concrete: Numerical modelling and experimental testing10.1016/j.cemconres.2018.02.001 ↗
36. Operating Instructions Concrete Durability Testing user manual Resipod. 〈https://www.samhithainnovations.com/pdf-files/concrete-resistivity-meters.pdf〉.
37. Mechanical properties and self-sensing ability of graphene-mortar compositions with different water content for 3D printing applications
38. Consistency of mechanical properties of 3D printed strain hardening cementitious composites within one printing system
39. Preparation and microstructural properties study on cement composites reinforced with multi-walled carbon nanotubes10.1177/0021998313514873 ↗
40. Carbon nanotube reinforced cementitious composites: a comprehensive review10.1016/j.conbuildmat.2021.125100 ↗
41. Effect of diameter of multi-walled carbon nanotubes on mechanical properties and microstructure of the cement-based materials
42. Mechanical properties of carbon nanotube reinforced cementitious materials: database and statistical analysis
43. Multi-scale performance and durability of carbon nanofiber/cement composites10.1007/978-3-642-00980-8_46 ↗
44. Dispersion of carbon nanotubes and its influence on the mechanical properties of the cement matrix10.1016/j.cemconcomp.2012.07.008 ↗
45. Quantitative relationship between pore size distribution and compressive strength of cementitious materials10.1016/j.conbuildmat.2020.121727 ↗
46. Utilization of carbon nanotubes (CNTs) in concrete for structural health monitoring (SHM) purposes: a review10.1016/j.conbuildmat.2021.125137 ↗
47. Cement paste with well-dispersed multi-walled carbon nanotubes: mechanism and performance10.1016/j.conbuildmat.2020.120746 ↗
48. Cement paste with well-dispersed multi-walled carbon nanotubes: mechanism and performance10.1016/j.conbuildmat.2020.120746 ↗
49. Construction of unique conductive networks in carbon nanotubes/polymer composites via poly(ε-caprolactone) inducing partial aggregation of carbon nanotubes for microwave shielding enhancement10.1016/j.compositesa.2022.107304 ↗
50. A change of phase morphology in poly(p-phenylene sulfide)/polyamide 66 blends induced by adding multi-walled carbon nanotubes10.1016/j.polymer.2006.09.008 ↗
51. Inner superhydrophobic materials based on waste fly ash: microstructural morphology of microetching effects10.1016/j.compositesb.2023.111089 ↗
52. Ultraductile waterborne epoxy-concrete composite repair material: epoxy-fiber synergistic effect on flexural and tensile performance10.1016/j.cemconcomp.2022.104463 ↗
53. The influence of TiO2 nanoparticles and poliacrilonitrile fibers on the rheological behavior and hardened properties of mortars10.1016/j.conbuildmat.2014.11.002 ↗
54. A thixotropy model for fresh fluid concretes: theory, validation and applications10.1016/j.cemconres.2006.05.025 ↗
55. Effect of multi-walled carbon nanotubes (MWCNTs) on the strength development of cementitious materials10.1016/j.jmrt.2018.09.006 ↗
56. Fresh properties of a novel 3D printing concrete ink10.1016/j.conbuildmat.2018.04.115 ↗
57. Juxtaposing fresh material characterisation methods for buildability assessment of 3D printable cementitious mortars10.1016/j.cemconcomp.2021.104024 ↗
58. Advances in understanding hydration of Portland cement10.1016/j.cemconres.2015.05.025 ↗
59. Modelling early age hydration kinetics of alite10.1016/j.cemconres.2012.03.003 ↗
60. Time dependent driving forces and the kinetics of tricalcium silicate hydration10.1016/j.cemconres.2015.03.016 ↗
61. The di- and tricalcium silicate dissolutions10.1016/j.cemconres.2013.01.017 ↗
62. Electrically cured ultra-high performance concrete (UHPC) embedded with carbon nanotubes for field casting and crack sensing10.1016/j.matdes.2020.109127 ↗
63. The influence of carbon nanotubes on the fracture energy, flexural and tensile behavior of cement based composites10.1016/j.conbuildmat.2019.03.003 ↗
64. 13 - Understanding the pumping of conventional vibrated and self-compacting concrete
65. Characterisation of void and fiber distribution in 3D printed carbon-fiber/PEEK using X-ray computed tomography10.1016/j.compositesa.2021.106487 ↗
66. S. Pang, G. Hongchen, X. Chunying, Q. Ser, D. Hongjian, 2014. Strain and damage self-sensing cement composites with conductive graphene nanoplatelet, Proceedings of SPIE - The International Society for Optical Engineering. 906126. 10.1117/12.2045329.10.1117/12.2045329 ↗
67. Self-sensing capability of ultra-high-performance concrete containing steel fibers and carbon nanotubes under tension10.1016/j.sna.2018.04.009 ↗
68. In situ-grown carbon nanotubes enhanced cement-based materials with multifunctionality10.1016/j.cemconcomp.2020.103518 ↗