Toward a better understanding of multifunctional cement-based materials: The impact of graphite nanoplatelets (GNPs)
Source abstract
Abstract
Abstract The impact of graphite nanoplatelets (GNPs) on the physical and mechanical properties of cementitious nanocomposites was investigated. A market-available premixed mortar was modified with 0.01% by weight of cement of commercial GNPs characterized by two distinctively different aspect ratios. The rheological behavior of the GNP-modified fresh admixtures was thoroughly evaluated. Hardened cementitious nanocomposites were investigated in terms of density, microstructure (Scanning Electron Microscopy, SEM and micro–Computed Tomography, μ-CT), mechanical properties (three-point bending and compression tests), and physical properties (electrochemical impedance spectroscopy, EIS and thermal conductivity measurements). At 28 days, all GNP-modified mortars showed about 12% increased density. Mortars reinforced with high aspect ratio GNPs exhibited the highest compressive and flexural strength: about 14% and 4% improvements compared to control sample, respectively. Conversely, low aspect ratio GNPs led to cementitious nanocomposites characterized by 36% decreased electrical resistivity combined with 60% increased thermal conductivity with respect to the control sample.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Smart Materials for Construction · Concrete and Cement Materials Research · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (68)
Show source-provided references
1. A practical approach for reducing the risk of plastic shrinkage cracking of concrete10.21809/rilemtechlett.2017.45 ↗
2. Early-age cracking in concrete: causes, consequences, remedial measures, and recommendations10.3390/app8101730 ↗
3. Mesoscopic damage model of concrete subjected to freeze-thaw cycles using mercury intrusion porosimetry and differential scanning calorimetry (MIP-DSC)10.1016/j.conbuildmat.2017.04.136 ↗
4. Al‐Kheetan · 2020
5. Investigation of the mechanical properties and microstructure of graphene nanoplatelet-cement composite10.3390/nano6110200 ↗
6. A critical review on research progress of graphene/cement based composites10.1016/j.compositesa.2017.07.019 ↗
7. Effect of graphene oxide nanosheets of microstructure and mechanical properties of cement composites10.1016/j.conbuildmat.2013.08.022 ↗
8. Enhancement of barrier properties of cement mortar with graphene nanoplatelet10.1016/j.cemconres.2015.05.007 ↗
9. The influence of nano-additives in strengthening mechanical performance of 3D printed multi-binder geopolymer composites10.1016/j.conbuildmat.2020.118928 ↗
10. Graphene oxide impact on hardened cement expressed in enhanced freeze–thaw resistance10.1061/(ASCE)MT.1943-5533.0001586 ↗
11. Nanotechnology in cement-based materials: a review of durability, modeling, and advanced characterization10.3390/nano9091213 ↗
12. Graphene nanoplatelets impact on concrete in improving freeze-thaw resistance10.3390/app9173582 ↗
13. Advances of graphene- and graphene oxide modified cementitious materials10.1515/ntrev-2020-0041 ↗
14. Graphene-engineered cementitious composites: small makes a big impact10.1177/1847980417742304 ↗
15. Influence of graphene nanoplatelets on morphological and electrical properties of silica fume blended cement – piezoelectric ceramic composite10.1016/j.ceramint.2018.08.131 ↗
16. Smart materials: a review of recent developments10.1108/01445151211198674 ↗
17. Piezoresistive cement-based materials for strain sensing10.1106/104538902031861 ↗
18. Structural health monitoring capabilities in ceramic–carbon nanocomposites10.1016/j.ceramint.2013.09.039 ↗
19. A comparative study on the influences of CNT and GNP on the piezoresistivity of cement composites10.1016/j.matlet.2019.126858 ↗
20. Self sensing carbon nanotube (CNT) and nanofiber (CNF) cementitious composites for real time damage assessment in smart structures10.1016/j.cemconcomp.2014.07.003 ↗
21. Electrical properties of cement-based composites with carbon nanotubes, graphene, and graphite nanofibers10.3390/s17051064 ↗
22. Size effects of graphene nanoplatelets on the properties of high-density polyethylene nanocomposites: morphological, thermal, electrical, and mechanical characterization10.3762/bjnano.11.14 ↗
23. A review on the mechanical and electrical properties of graphite and modified graphite reinforced polymer composites10.1016/j.progpolymsci.2010.11.003 ↗
24. Klaus D. Sattler CRC Press, 6 apr 2016 - 735 pagine, Carbon Nanomaterials Sourcebook: Nanoparticles, Nanocapsules, Nanofibers, Nanoporous Structures, and Nanocomposites, Volume II, Volume 2. p. 678.10.1201/b19568 ↗
25. A systematic study on EN-998-2 premixed mortars modified with graphene-based materials10.1016/j.conbuildmat.2019.116701 ↗
26. Graphene nanoplatelets-based advanced materials and recent progress in sustainable applications10.3390/app8091438 ↗
27. High performance cementitious nanocomposites: the effectiveness of nano-Graphite (nG)10.1016/j.conbuildmat.2020.119687 ↗
28. Electrical conductivity of concrete
29. Dispersion of graphene oxide agglomerates in cement paste and its effects on electrical resistivity and flexural strength10.1016/j.cemconcomp.2018.06.008 ↗
30. Investigation of tip sonication effects on structural quality of graphene nanoplatelets (GNPs) for superior solvent dispersion10.1016/j.ultsonch.2018.03.007 ↗
31. The effect of compatibility and dimensionality of carbon nanofillers on cement composites10.1016/j.conbuildmat.2019.117141 ↗
32. Bingham · 1922 · 440
33. Rheological behavior of fresh cement pastes10.3390/fluids3040106 ↗
34. A review of microscale, rheological, mechanical, thermoelectrical and piezoresistive properties of graphene based cement composite10.3390/nano10102076 ↗
35. Rendering mortars reinforced with natural sheep's wool fibers10.3390/ma12223648 ↗
36. Graphene nanoplatelets as an effective additive to tune the microstructures and piezoresistive properties of cement-based composites10.1016/j.conbuildmat.2019.03.173 ↗
37. Effect of graphenene nanoplatelets on microstructure and properties of cement mortar under simulated acid rain10.1088/1757-899X/631/2/022036 ↗
38. Effect of graphite nanoplatelets and carbon nanofibers on rheology, hydration, shrinkage, mechanical properties, and microstructure of UHPC10.1016/j.cemconres.2018.01.001 ↗
39. Mechanical properties and microstructure of graphene oxide cement-based composites10.1016/j.conbuildmat.2018.10.234 ↗
40. Petra pötschke, effect of graphite nanoplate morphology on the dispersion and physical properties of polycarbonate based composites10.3390/ma10050545 ↗
41. Enhancement of mechanical and electrical properties of graphene/cement composite due to improved dispersion of graphene by addition of silica fume10.1016/j.conbuildmat.2017.12.176 ↗
42. Simple and fast porosity analysis of concrete using X-ray computed tomography10.1617/s11527-014-0519-9 ↗
43. Micro- and nano-X-ray computed-tomography: a step forward in the characterization of the pore network of a leached cement paste10.1016/j.cemconres.2014.08.007 ↗
44. 3D experimental investigation of the microstructure of cement pastes using synchrotron X-ray microtomography (μCT)10.1016/j.cemconres.2006.10.012 ↗
45. Pore structure characterization of hardened cement paste by multiple methods
46. 3D pore structure and mass transport properties of blended cementitious materials10.1016/j.cemconres.2018.12.007 ↗
47. D'Alessandro · 2020
48. Multipurpose experimental characterization of smart nanocomposite cement-based materials for thermal-energy efficiency and strain-sensing capability10.1016/j.solmat.2016.11.030 ↗
49. Research on electrical conductivity of graphene/cement composites10.1680/jadcr.16.00170 ↗
50. Study on the carbonation behavior of cement mortar by electrochemical impedance spectroscopy10.3390/ma7010218 ↗
51. A review on microstructural characterization of cement-based materials by AC impedance spectroscopy10.1016/j.cemconcomp.2019.03.018 ↗
52. Electrical resistivity measurements in steel fibre reinforced cementitious materials10.1016/j.cemconcomp.2018.03.015 ↗
53. Multi-layer graphene-engineered cementitious composites with multifunctionality/intelligence10.1016/j.compositesb.2017.07.063 ↗
54. Electrochemical impedance interpretation for the fracture toughness of carbon nanotube/cement composites10.1016/j.conbuildmat.2016.03.215 ↗
55. Electrical conductivity and compressive strength of carbon fiber reinforced fly ash geopolymeric composites10.1016/j.conbuildmat.2016.12.198 ↗
56. Permeability and equivalent circuit model of ionically conductive mortar using electrochemical workstation10.3390/ma13051179 ↗
57. Reinhardt · 2005
58. Liang · 2017
59. Interpretation of impedance spectroscopy of cement paste via computer modelling10.1007/BF00356331 ↗
60. Early age thermal and shrinkage cracks in concrete structures - description of the problem
61. Effective thermal conductivity of graphene-based composites10.1063/1.4754120 ↗
62. Superior thermal conductivity of single-layer graphene10.1021/nl0731872 ↗
63. Phonon thermal conductivity of graphene, Superlattice10.1016/j.spmi.2015.09.027 ↗
64. Carbon nanomaterials enhanced cement-based composites: advances and challenges10.1515/ntrev-2020-0011 ↗
65. Mechanical, thermal and electromagnetic properties of nanographite platelets modified cementitious composites10.1016/j.compositesa.2016.11.017 ↗
66. A graphite nanoplatelet/epoxy composite with high dielectric constant and high thermal conductivity10.1016/j.carbon.2012.12.017 ↗
67. Electrical and thermal conductivity of epoxy-carbon filler composites processed by calendaring10.3390/ma12091522 ↗
68. Thermal conductivity of polymer composites with the geometrical characteristics of graphene nanoplatelets10.1038/srep26825 ↗