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http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1504| “CORROSIÓN ACELERADA DE ACERO EMBEBIDO EN MORTERO CON CENIZA DE CASCARILLA DE ARROZ Y NANO ÓXIDO DE SÍLICE” | |
| FACUNDO ALMERAYA CALDERON | |
| Acceso Abierto | |
| Sin Derechos Reservados | |
| Nanometric-mortar | |
| These days it has been shown that the nanoparticles (NP) have exceptional physical and chemical properties, to an extent that there are several studies referred to construction industry. These studies are aimed at achieving a better understanding of nanoscale properties of mortar. Main researches of nanometric mortar (NM) have added NP as: Nano-Silica (NS), nanoalumina, iron and titanium oxides nanoparticles, magnetite ash, carbon nanotubes and fly ash. However, these researches have been aimed at improving the mechanical properties of mortar, so there are few records of studies of the electrochemical behavior of NM. In this work, four groups of mortar prisms were made (size 40x40x160 mm) with an embedded bar, the water:cementitious ratio was 0.55, fine aggregate (sand), rice hunk ash (10.00, 30.00% of cement weight) and NS (1.00% of cement weight). All prisms specimens were submitted to Accelerated corrosion test with impressed voltage using a constant voltage of 12 V in 5% NaCl solution. The condition of prism was continuously monitored and the time of initiation of first crack was recorded. Moreover, the mortar porosity was determinate. The results of the measurements of the time of initiation of first crack show higher values in mortar prisms with higher NS content and moreover, the mortar porosity increases with NS content. The simultaneous use of Rice hunk ash and NS help to increase the time of initiation of first crack. | |
| 2012 | |
| Memoria de congreso | |
| Inglés | |
| OTRAS | |
| Versión revisada | |
| submittedVersion - Versión revisada | |
| Aparece en las colecciones: | Artículos de Congresos |
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| Fichero | Tamaño | Formato | |
|---|---|---|---|
| 30. Nano-silice (Extenso) IMRC C_____ Manuel Pellegrini.pdf | 1.08 MB | Adobe PDF | Visualizar/Abrir |