Effect of multi-walled carbon nanotubes on strength and electrical properties of cement mortar

This work aims to investigate the effects of multi-walled carbon nanotubes (MWCNTs) on the strength and electrical properties of cement mortar. MWCNTs were added to cement mortar in four different concentrations: 0.00 wt.%, 0.01 wt.%, 0.015 wt.%, and 0.02 wt.% by the mass of cement. The consistency,...

Descripción completa

Detalles Bibliográficos
Autores: Cerro Prada, E., Pacheco Torres, Rosalía, Varela, F.
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Consejo General de la Arquitectura Técnica de España (CGATE)
Repositorio:RIARTE
OAI Identifier:oai:www.riarte.es:20.500.12251/2863
Acceso en línea:http://hdl.handle.net/20.500.12251/2863
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85098791311&doi=10.3390%2fma14010079&partnerID=40&md5=6da3d83ffc98da622782800151893e7f
Access Level:acceso abierto
Palabra clave:Nanotubo de carbono de pared múltiple
Morteros - Construcción
Ensayos (propiedades o materiales)
Resistencia mecánica
Propiedades mecánicas
Material compuesto
Conductividad térmica
3313.04 Material de Construcción
2211.02 Materiales Compuestos
3312.08 Propiedades de Los Materiales
3312.09 Resistencia de Materiales
3312.12 Ensayo de Materiales
3312.02 Aglomerantes
Descripción
Sumario:This work aims to investigate the effects of multi-walled carbon nanotubes (MWCNTs) on the strength and electrical properties of cement mortar. MWCNTs were added to cement mortar in four different concentrations: 0.00 wt.%, 0.01 wt.%, 0.015 wt.%, and 0.02 wt.% by the mass of cement. The consistency, density, setting time and compressive and flexural strength of mixes were tested and analyzed at 28 and 90 days curing time. Mechanical performance tests confirm an increase of 25% and 20% in the ultimate compressive and flexural strength respectively, which results from MWCNT 0.02 wt.% loading at 90 days curing time. The resistivity measurements in mortars with 0.01 and 0.015 wt.% MWCNT loading result up to 10% decrement at both 28 and 90 days curing. Activation energy calculations show fully accordance with these statements, resuming that 0.01 wt.% MWCNT appears to be the most effective loading scheme to produce certain conductivity enhancement in cement mortar. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.

Similares en LA Referencia