Banca de QUALIFICAÇÃO: PHILLIPY JOHNY LINDOLFO DA SILVA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : PHILLIPY JOHNY LINDOLFO DA SILVA
DATE: 16/12/2024
TIME: 14:00
LOCAL: A DEFINIR (NECESSIDADE DE LOCAL HÍBRIDO - PRESENCIAL E REMOTO)
TITLE:

Technical feasibility of using asphalt concrete production waste in soil mixtures for pavement layers

KEY WORDS:

Resilience module. Sustainability. Permanent deformation.

PAGES: 39
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Geotécnica
SPECIALTY: Pavimentos
SUMMARY:

This study investigated the feasibility of using the addition of Asphalt Graded Brita (BGA), a residue from asphalt concrete production, on the mechanical behavior of two soils in the state of Rio Grande do Norte (Caico and Parnamirim), evaluated by resilience modulus tests. (MR) and permanent deformation (DP). Soils were analyzed in their natural state (SM) and stabilized with 10% (M1) and 20% (M2) of BGA. The results indicated that, for the resilience modulus, the addition of BGA significantly increased the MR values in both mixtures, especially in M1, which showed greater efficiency with better initial stiffness and greater sensitivity to confining stress. In the DP test, the stabilized mixtures showed a lower rate of accumulation of plastic deformations compared to natural soils, being classified as Type B of the shakedown theory, indicating progressive stabilization. The 20% proportion of BGA (M2) resulted in slightly larger permanent displacements, but maintained structural performance superior to the natural state. This study confirms the technical and environmental viability of BGA as a sustainable stabilizer for paving, reducing the environmental impact associated with the exploitation of natural aggregates and the management of industrial waste.

COMMITTEE MEMBERS:
Presidente - ***.307.994-** - ENIO FERNANDES AMORIM - IFRN
Interno - 1692497 - OSVALDO DE FREITAS NETO
Externo à Instituição - JOHN KENNEDY GUEDES RODRIGUES - UFCG
Externa à Instituição - SILVANA FAVA MARCHEZINI - IFMT