Banca de DEFESA: Camila Lacerda Gomes

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : Camila Lacerda Gomes
DATE: 05/02/2024
TIME: 14:30
LOCAL: Miniauditório PPGEC
TITLE:

MIX DESIGN OF CONCRETE WITH RECYCLED AGGREGATES USING THE COMPRESSIBLE PACKAGING MODEL

KEY WORDS:
PAGES: 120
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Construção Civil
SPECIALTY: Materiais e Componentes de Construção
SUMMARY:

Currently, there is a high demand for sustainable building materials. The construction sector is responsible for the degradation of many areas for the extraction of raw materials and waste disposal. Construction and demolition waste (CDW) is an example of waste generated in large quantities. CDW can be reused by the sector itself in the form of recycled aggregate (RA). In addition to reducing waste disposal, the use of AR contributes to reducing the extraction of raw materials, preserving the environment. Due to the variability in the composition of this waste, and consequently of the RA, national standards allow only 20% of the natural aggregate to be replaced by recycled concrete aggregate (ARC). Such restrictions seek to minimize the uncertainties arising from the variability of CDW properties, allowing the safe use of the material. The present work seeks to subsidize advances in the use of CDW through the analysis of the dosage method in order to enable the obtaining of concretes with the expected properties. Compressible packaging model is used for dosing mixtures produced with different recycled and natural coarse aggregates. The composition of the coarse AR is varied to evaluate the influence of the fraction of ceramic materials on the properties of recycled concrete. The mixtures were tested for properties of the concrete in the fresh and hardened state. The dosing method used made it possible to obtain concretes with similar strength for different coarse, recycled and natural aggregates, indicating the efficiency of the method for the use of RA.

COMMITTEE MEMBERS:
Presidente - CONRADO DE SOUZA RODRIGUES
Interna - FLAVIA SPITALE JACQUES POGGIALI
Interno - AUGUSTO CESAR DA SILVA BEZERRA
Externo à Instituição - WHITE JOSE DOS SANTOS - UFMG
Externo à Instituição - FLAVIO DE ANDRADE SILVA - PUC - RJ