The main objective of this study is to evaluate the effect of the chemical nature of three types of nanoparticles when added to Portland cement. In this way, the fluidity, compressive strength at four ages, and setting time of this material were investigated at a constant nanoparticle composition. I...
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https://revistas.sena.edu.co/index.php/RVI/article/view/6821 |
| Summary: | The main objective of this study is to evaluate the effect of the chemical nature of three types of nanoparticles when added to Portland cement. In this way, the fluidity, compressive strength at four ages, and setting time of this material were investigated at a constant nanoparticle composition. It was determined that all nanoparticles reduced the material's fluidity by less than 18 %, while the setting time showed improvements of up to 15 minutes with the addition of nano-SiO2 and delays of over 20 minutes when interacting with nano-Al2O3 or nano-FeO. Subsequently, it was observed that the chemical nature of nano-FeO provided the cement with strength increases at 28 days of up to 7 MPa (29 % compared to the standard), results that were considerably higher than the changes of nano-SiO2 and nano-Al2O3 at +2 and -2 MPa respectively over the sample without nanoparticles. For the most efficient one, a cost vs stability design analysis was performed to give the reader an idea of the projections these nanotechnological effects have in contemporary society.
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