Banca de QUALIFICAÇÃO: MURILO DE LIMA RODRIGUES

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : MURILO DE LIMA RODRIGUES
DATE: 04/12/2023
TIME: 15:00
LOCAL: A DEFINIR (NECESSIDADE DE LOCAL HÍBRIDO - PRESENCIAL E REMOTO)
TITLE:

EVALUATION OF THE SUPPORT CAPACITY OF SOIL MIXTURES WITH GRADED CRUSHED ASPHALT (BGA) FOR USE IN BASE AND SUB-BASE LAYERS OF FLEXIBLE PAVEMENTS

KEY WORDS:

Paving; Soil Mixtures; BGA; CBR.

PAGES: 16
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Geotécnica
SPECIALTY: Pavimentos
SUMMARY:

The road transport system plays a fundamental role in Brazil, being responsible for moving cargo and passengers. In 2023, it is planned to transport more than 22 million passengers, indicating an increase of 18.75% compared to the last year. In 2022, this means of transport represented approximately 64.7% of the cargo transport matrix. The growing increase in demand highlights the urgency of investments in new projects and maintenance of existing roads. Given this necessity, this work evaluated the support capacity of mixtures of different types of soils in the State of Rio Grande do Norte, associated with waste from asphalt, called Graded Asphalt Crushed Stone (BGA), with percentages of 10% and 20%, in pasta. The work methodology was carried out through characterization tests, compression, California Bearing Ratio (CBR), and X-ray Fluorescence (XRF) for purposes aimed at the use of mixtures in sub-base and base layers of flexible pavements roads. At the end of the study, it was found that four samples with high percentages of sand, in its granulometric composition, in the condition of pure soil, and the soil mixture with 20% BGA, all at modified compaction energy, with reuse of material, provided considerable gains in support capacity, enabling its use in the base and sub-base structural layers of flexible pavements.

COMMITTEE MEMBERS:
Presidente - ***.307.994-** - ENIO FERNANDES AMORIM - IFRN
Interno - 1692497 - OSVALDO DE FREITAS NETO
Externa à Instituição - SILVANA FAVA MARCHEZINI