Banca de DEFESA: FRANCISCO FALEIROS LOPES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : FRANCISCO FALEIROS LOPES
DATA : 17/05/2019
HORA: 09:30
LOCAL: CEFET-MG, Campus II, PPGEC
TÍTULO:

Steelmaking wastes blends as mineral admixtures partially replacing cement in concrete production

PALAVRAS-CHAVES:

Blast furnace slag, Fly ash, pozolans, Solid waste management, Industria ecology

PÁGINAS: 105
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Civil
SUBÁREA: Construção Civil
ESPECIALIDADE: Materiais e Componentes de Construção
RESUMO:

The manufacturing industry has a particular aspects in terms of residues generation, due to the greater complexity of its operations, from the extraction of the raw material to the manufacture of the final product, resulting in a great diversity of materials that can be reused in the own production process, marketed as byproducts or that, due to lack of knowledge of their properties, are erroneously discarded. In this context, the steel industry presents itself as a potential developer of solutions to the management problems of its wide range of residues, with the challenge to create alternatives to the use of sub-used materials, which are currently deposited in landfills, in applications that add value to your product in a sustainable way. This work aimed to identify the residues that presented the characteristics with greater affinity of use as supplementary cementitious materials, in the production of cements, mortars and concretes, when combined, such as granulated slag and flue dust; materials from the pig iron manufacturing process generated in the coal-fired blast furnace system located in the industrial plant of ArcelorMittal in João Monlevade - MG. The studies were conducted in order to analyze their physico-chemical properties, the establishment of mixtures and the performance of resistance tests, evaluating the real possibilities of using them in a safe and viable way in the civil construction sector. As result, it was possible to obtain concretes with average compressive strength, at 28 days, in the range of 25.88 MPa to 29.38 MPa and with maximum compressive strength, at 28 days, in the range of 38.90 MPa to 44, 90 MPa. In this way, the research proved to be feasible the combination of these residues, used as additions in the formulation of pozzolanic mixtures for the production of cements and concretes.

MEMBROS DA BANCA:
Presidente - CONRADO DE SOUZA RODRIGUES
Interno - PETER LUDVIG
Externo à Instituição - ALDO GIUNTINI DE MAGALHÃES - UFMG