Banca de QUALIFICAÇÃO: RAABI INARAIR FERREIRA BRAZ

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : RAABI INARAIR FERREIRA BRAZ
DATE: 02/02/2024
TIME: 10:00
LOCAL: Sala doPPCIVAM
TITLE:

BEHAVIOR OF EXPANSIVE SOIL STABILIZED WITH ORNAMENTAL STONE PROCESSING WASTE

KEY WORDS:

expansive soil, processing residue, chemical stabilization.

PAGES: 25
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Geotécnica
SUMMARY:

Expansive soils present volumetric instability when experiencing moisture variations. It is important to understand this expansion mechanism and the stabilization techniques for this type of soil, aiming to minimize losses in civil construction. Among the possibilities of techniques for improving expansive soil, the following research highlights chemical stabilization, commonly carried out with the addition of portland cement or hydrated lime. The costs and environmental impact of producing these materials have encouraged researchers to use solid waste as stabilizers, as they are produced abundantly in industries and in most cases are disposed of irregularly. This work aims to analyze the stabilization of an expansive soil with ornamental rock processing residue, observing the improvement of mechanical, hydraulic and deformability properties of the soil. For this, the expansive soil will be collected in mossoró-rn and stabilized with additions of processing residue of 10%, 20% and 30%. The soil, ornamental rock processing residue and soil-residue mixtures will be analyzed, initially, by preliminary tests: granulometric analysis by sieving and sedimentation, atterberg limits and real grain density, later the chemical characterization tests will be carried out: fluorescence of x-ray (xrf), x-ray diffraction (xrd) and energy dispersive x-ray spectroscopy (eds) integrated with the scanning electron microscope (sem) and finally the mechanical characterization tests: simple compression, free expansion and compression triaxial.

COMMITTEE MEMBERS:
Externo ao Programa - 2085750 - FAGNER ALEXANDRE NUNES DE FRANCA - UFRNExterno à Instituição - JOHN ELOI BEZERRA - UFERSA
Presidente - 1284389 - MARIA DEL PILAR DURANTE INGUNZA
Interno - 1149451 - OLAVO FRANCISCO DOS SANTOS JUNIOR