Banca de QUALIFICAÇÃO: VANESSA VILELA ROCHA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE : VANESSA VILELA ROCHA
DATA : 09/08/2019
HORA: 14:00
LOCAL: Auditório do Prédio 18
TÍTULO:

INFLUENCE OF CARBON NANOTUBES ON THE HYDRATION AND MICROSTRUCTURE OF CEMENT PASTES

PALAVRAS-CHAVES:

Carbon Nanotubes; Cement; Isopropanol; Microstructure

PÁGINAS: 50
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Civil
SUBÁREA: Construção Civil
ESPECIALIDADE: Materiais e Componentes de Construção
RESUMO:

Civil construction is one of the most polluting and waste generators. In order to minimize the impacts is crucial to increase the resistance and durability of cement composites to promote the sustainability of this sector. Researchers suggest the use of carbon nanotubes as reinforcement of the cementitious matrix. Those nanomaterials act as a nucleator of the hydration products and increase the strength. The present work seeks to better understand the effects of carbon nanotubes dispersed on the anhydrous particles of cement in a non-aqueous solution of isopropanol. Thus, cement pastes with different ratio of carbon nanotubes are evaluated by thermogravimetric analysis (TGA), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), nitrogen adsorption, mercury intrusion porosimetry, scanning electron microscopy (SEM) and microhardness analysis. It is expected a better comprehension of hydration process in presence of carbon nanotubes.

MEMBROS DA BANCA:
Presidente - PETER LUDVIG
Interna - FLAVIA SPITALE JACQUES POGGIALI
Externo à Instituição - MANUEL HOUMARD - UFMG