Banca de QUALIFICAÇÃO: AFRÂNIO PEREIRA DE OLIVEIRA JÚNIOR

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : AFRÂNIO PEREIRA DE OLIVEIRA JÚNIOR
DATE: 30/12/2024
TIME: 09:00
LOCAL: Online
TITLE:

Assessment of the potential for using salt production residue (carago) as a stabilizing agent for expansive soil

KEY WORDS:

Expansive soil. Stabilization

PAGES: 15
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Geotécnica
SUMMARY:

Expansive soils are present in several parts of the world. Its main characteristic is the volumetric variation based on the variation in moisture content. This is due to the presence of expansive clay minerals in the clay fraction of the soil, such as Montmorillonite. These volume variations cause damage to engineering works, which can range from small cracks to total damage to the structure. These soils can be stabilized by adding materials that react with the clay and reduce or eliminate expansion. This research aimed to evaluate the potential of using a by-product of salt production, called Carago, for stabilizing expansive soil present in the city of Mossoro, in the state of Rio Grande do Norte (RN). To this end, characterization, compaction, free expansion, expansion stress and direct shear tests were carried out on soil mixtures with 5% and 10% carago contents. Based on the results, it was possible to conclude that the addition of 10% carago to the soil reduced free expansion by 20% and that there was an increase in cohesion in all mixtures with carago.

COMMITTEE MEMBERS:
Interno - 1149451 - OLAVO FRANCISCO DOS SANTOS JUNIOR
Externo à Instituição - RICARDO NASCIMENTO FLORES SEVERO - IFRN