Banca de DEFESA: ANA RITA DAMASCENO COSTA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : ANA RITA DAMASCENO COSTA
DATA : 13/12/2019
HORA: 09:00
LOCAL: PPEC
TÍTULO:

Study of the hydration and carbonation of ternary cement samples (LC3 ) containing wastes from calcium sources and calcinated clay

PALAVRAS-CHAVES:

LC3 . Ceramic Waste. Marble. Phosphogypsum. Cement. Hydration. Carbonation.

PÁGINAS: 190
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Civil
RESUMO:

The production of Limestone Calcined Clay Cement (LC3 ) is a great potential alternative to conventional Portland cement for reducing pollutant gas emissions. Many studies on LC3 have been developed, but few studies involving its mix design and durability. In this context, this work aims to study the influence of the mix design on the performance of LC3 (hydration, rheology and compressive strength), and its behavior when subjected to carbonation by supercritical CO2. The raw materials were Portland cement, phosphogypsum and porcelain, ceramic block and marble wastes. Physical, chemical and mineralogical characterization of the ternary cement samples and pastes before and after carbonation were performed, as well as the rheological parameters, isothermal calorimetry, and compressive strength tests. The proposed mix design is suitable for LC3 formulations, contributing to the resistance gain in advanced ages. Ternary cement samples reached over 70% of the axial compressive strength of portland cement at 28 days. However, they presented lower performance against carbonation by supercritical CO2.

MEMBROS DA BANCA:
Externo à Instituição - ERICH DAVID RODRIGUEZ MARTINEZ
Presidente - 2652701 - JARDEL PEREIRA GONCALVES
Externo ao Programa - 2362069 - RAILDO ALVES FIUZA JUNIOR
Externo ao Programa - 1475073 - VANESSA SILVEIRA SILVA