Banca de DEFESA: Jéssica Azevedo Coelho

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : Jéssica Azevedo Coelho
DATE: 26/01/2023
TIME: 14:30
LOCAL: Videoconferência
TITLE:

ANALYSIS OF PHYSICAL AND MECHANICAL PERFORMANCE OF ADOBE BRICKS PRODUCED WITH MINING WASTE.

KEY WORDS:

Adobe brick. Construction with earth. Mining tailings.

PAGES: 133
BIG AREA: Ciências Sociais Aplicadas
AREA: Arquitetura e Urbanismo
SUMMARY:

Mineral extraction in Brazil is responsible for a considerable portion of the national gross domestic product (GDP). This large extractive volume is directly related to the amount of waste generated at the end of the production plants. Solutions aimed at incorporating deposited/discarded tailings contribute to minimizing the environmental liabilities generated by mineral exploration. The civil construction sector has been a great ally in this type of solution, while several of its materials and construction techniques allow the use or incorporation of waste from the most different production chains. Among these techniques is adobe, which consists of forming plastic soils into a prismatic format, with subsequent air drying to then be used in buildings as a component of different systems, such as sealing, structural and even roofing. That said, this work sought to evaluate the performance of adobes produced with the addition of copper and gold mining tailings, deposited in the municipality of Alto Horizonte, in the state of Goiás. The adobes were made with 0%, 20%, 40%, 60%, 80% and 100% incorporation of the tailings into the local soil sample. The units produced were subsequently subjected to simple compression and water absorption tests by immersion, where the mixture with 20% (by mass) of tailings was the one that presented the best results in both indices, even if it did not reach the minimum established by the Brazilian regulations. It was concluded that the production of adobes with the incorporation of mining tailings in up to 20% by mass, following the criteria defined in the research, resulted in components with better performance in simple compression and water absorption, when compared to the control units. , produced only with soil. However, in order to meet the minimum strength requirements, a greater addition of stabilizer, such as cement or lime, is necessary.

BANKING MEMBERS:
Presidente - 2226055 - MARCIO ALBUQUERQUE BUSON
Interno - 1803926 - CARLOS EDUARDO LUNA DE MELO
Interna - 1851456 - VANDA ALICE GARCIA ZANONI
Externa à Instituição - SHEYLA KAROLINA JUSTINO MARQUES - IFAl