A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Micromechanical Properties Assessment of Slag Blended Cements Using Nanoindentation and Scanning Electron Microscopy
https://orcid.org/http://orcid.org/0000-0002-3668-6724
Sustainability concerns related to the CO2 emissions of Portland cement production led to the exploitation of some by-products as replacement materials, such as slag. This requires a good understanding of the blended cementitious materials at the microscale to fully explain the observed behavior of the structures at the macroscale. The nanoindentation technique was used to assess the effect of slag incorporation on the micromechanical properties at the early age through the study of four cement pastes with different replacement ratios. Then, the nanoindents were observed using scanning electron microscopy to address the issues related to nanoindentation data deconvolution. The results show that the hydration products are intimately intermixed and that the boundary condition of indented areas must be considered when assessing the properties of individual phases to reduce the measurement variability. In addition, the incorporation of slag was found to cause a decrease in hydration products’ elastic modulus and creep properties due to the gel porosity increase.
Micromechanical Properties Assessment of Slag Blended Cements Using Nanoindentation and Scanning Electron Microscopy
https://orcid.org/http://orcid.org/0000-0002-3668-6724
Sustainability concerns related to the CO2 emissions of Portland cement production led to the exploitation of some by-products as replacement materials, such as slag. This requires a good understanding of the blended cementitious materials at the microscale to fully explain the observed behavior of the structures at the macroscale. The nanoindentation technique was used to assess the effect of slag incorporation on the micromechanical properties at the early age through the study of four cement pastes with different replacement ratios. Then, the nanoindents were observed using scanning electron microscopy to address the issues related to nanoindentation data deconvolution. The results show that the hydration products are intimately intermixed and that the boundary condition of indented areas must be considered when assessing the properties of individual phases to reduce the measurement variability. In addition, the incorporation of slag was found to cause a decrease in hydration products’ elastic modulus and creep properties due to the gel porosity increase.
Micromechanical Properties Assessment of Slag Blended Cements Using Nanoindentation and Scanning Electron Microscopy
https://orcid.org/http://orcid.org/0000-0002-3668-6724
Sustainability concerns related to the CO2 emissions of Portland cement production led to the exploitation of some by-products as replacement materials, such as slag. This requires a good understanding of the blended cementitious materials at the microscale to fully explain the observed behavior of the structures at the macroscale. The nanoindentation technique was used to assess the effect of slag incorporation on the micromechanical properties at the early age through the study of four cement pastes with different replacement ratios. Then, the nanoindents were observed using scanning electron microscopy to address the issues related to nanoindentation data deconvolution. The results show that the hydration products are intimately intermixed and that the boundary condition of indented areas must be considered when assessing the properties of individual phases to reduce the measurement variability. In addition, the incorporation of slag was found to cause a decrease in hydration products’ elastic modulus and creep properties due to the gel porosity increase.
Micromechanical Properties Assessment of Slag Blended Cements Using Nanoindentation and Scanning Electron Microscopy
RILEM Bookseries
Jędrzejewska, Agnieszka (editor) / Kanavaris, Fragkoulis (editor) / Azenha, Miguel (editor) / Benboudjema, Farid (editor) / Schlicke, Dirk (editor) / Bekrine, Imane (author) / Hilloulin, Benoît (author) / Loukili, Ahmed (author)
International RILEM Conference on Synergising expertise towards sustainability and robustness of CBMs and concrete structures ; 2023 ; Milos Island, Greece
2023-06-09
11 pages
Article/Chapter (Book)
Electronic Resource
English
Hydration of slag-blended cements
| Online Contents | 2012
Hydration of slag-blended cements
| Elsevier | 2012
Blastfurnace slag processing to blended cements
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Laboratory studies of blended cements -- Portland blast-furnace slag cements
| Engineering Index Backfile | 1967
Hydration of phosphorus furnace slag blended cements
| Tema Archive | 1997