Banca de DEFESA: LUIZA MARIA MOREIRA VILAR

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : LUIZA MARIA MOREIRA VILAR
DATE: 14/11/2023
TIME: 09:00
LOCAL: https://conferenciaweb.rnp.br/webconf/junia-nunes-de-paula
TITLE:

EFFECT OF CARBONATION OF CIMENTITIOUS COMPOSITES WITH ADDITION OF GRAPHENE OXIDE

KEY WORDS:

. Graphene Oxide.Carbonation. Cementitious composites. 

PAGES: 143
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Construção Civil
SPECIALTY: Materiais e Componentes de Construção
SUMMARY:

The research verified the influence of incorporation of graphene oxide (GO) on the
carbonation of cementitious composites was verified. Mortars were fabricated with
CP V-ARI cement and a ratio of 1:3, with GO incorporation levels of 0, 0.03% and
0.05% in relation to the cement mass. Tests related to the mechanical performance
and durability of the samples were carried out. Thus, it was possible to verify that
carbonation influences the mechanical resistance of cementitious composites. It was
also observed that the incorporation of GO did not present significant results for
water absorption by immersion, but the addition of 0.05% reduced the compressive
strength of mortars subjected to accelerated carbonation by 15.81% and 11.43%
when compared to the reference and the one with the addition of 0.03% GO.
Furthermore, it was noted that mortars with the addition of nanomaterial at levels of
0.03% and 0.05% increased the tensile strength due to diametrical compression of
mortars subjected to accelerated carbonation by 18.88% and 17.95%, respectively,
however, the addition of 0.03% GO caused a 49.73% increase in carbonation depth
in relation to the reference. Therefore, based on the test results, it is possible to
consider that graphene oxide is a promising material that can provide improvements
in the properties of cementitious composites and contribute to their durability.

COMMITTEE MEMBERS:
Presidente - JUNIA NUNES DE PAULA
Interno - PETER LUDVIG
Externo à Instituição - JOSÉ MÁRCIO FONSECA CALIXTO - UFMG