Banca de QUALIFICAÇÃO: Laura Borges Costa

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : Laura Borges Costa
DATE: 27/08/2021
TIME: 14:00
LOCAL: Plataforma Microsoft Teams
TITLE:

Mortar feasibility study with filitic additive

KEY WORDS:

waste generation, waste rock pile, environmental sustainability, mortar, phyllite.

PAGES: 80
BIG AREA: Engenharias
AREA: Engenharia de Minas
SUMMARY:

Mining has always been linked to human development. From the beginning, man took advantage from mining to obtain objects that allowed him to hunt and protect himself. Today, mining has a huge influence on the world economy, being responsible for the generation of several direct and indirect jobs. The Brazilian mining industry, like the rest of the world, made great progress with the introduction of steam engines, allowed by the Industrial Revolution, but environmental awareness only began to be noticed a few decades ago. For many years, man has mined without any concern for the environment, leaving behind a history of environmental destruction, through deforestation, contamination of rivers, aquifers and subsoils, generation of harmful gases and dust, waste disposal without environmental control, rupture of tailings dams and waste rock piles. The generation of waste is a process inherent to man and, therefore, inevitable. From the moment that residues, including it generation and disposal, start to cause damage to human health and well-being, there is a growing environmental awareness on the part of the population and actions by the industries to avoid it impacts. Among the industrial practices of reuse and waste management, the highlights are Industrial Ecology, Industrial Symbiosis, Recycling, Reuse and Co-processing. These practices converge to the same focus, to reduce the deposition of waste, seeking the maximum use of these. Mining has been adopting environmental sustainability actions in its production line, especially when it comes to tailings from iron mining, given the recent accidents involving this material. Phyllite is an abundant rock in Brazil, but it is often considered as a waste of mining, so many studies are being carried out for the application of the material in other industrial sectors, especially in the civil construction sector. The study phyllite is a waste rock from a limestone mining in the city of Santa Rosa da Serra – MG and is disposed in waste rock piles. Thus, the proposal of the work is to apply phyllite in mortars as a substitute for lime and fine aggregate, aiming to develop a new product that is technologically viable to be inserted in the market. For this, laboratory tests were carried out following current standards. Cylindrical and square specimens were molded in order to perform uniaxial compressive strength, permeability, hardened state density tests, as well as water retention tests, fresh density tests. Furthermore, the mortar was applied to a roughened wall in order to analyze its performance and perform the permeability test.

BANKING MEMBERS:
Presidente - ALEXANDER MARTIN SILVEIRA GIMENEZ
Interno - DOMINGOS SAVIO DE RESENDE
Interna - MARCELA MAIRA NASCIMENTO DE SOUZA SOARES
Externo ao Programa - FABIO DE SAO JOSE