Banca de DEFESA: MAYZA GABRIELA ESTEVAM DA SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MAYZA GABRIELA ESTEVAM DA SILVA
DATE: 11/07/2024
TIME: 14:00
LOCAL: meet.google.com/cdu-rsjr-goj
TITLE:

Evaluation of the improvement of a soil's physical and mechanical properties through the incorporation of industrial waste from the production of ceramic tiles

KEY WORDS:

Soil stabilization; Ceramic waste; Construction waste; Geotechnics; Mechanical strength.

PAGES: 75
BIG AREA: Engenharias
AREA: Engenharia Sanitária
SUMMARY:

The significant role played by the construction sector, both in the development of projects and in the production of inputs, has consequences that cause negative impacts on the environment, one of the main ones being the generation and improper disposal of waste. The study and development of ways of applying industrial waste from the production of inputs for the construction industry is one of the most promising alternatives for reducing negative impacts on the environment. When it comes to soil improvement, the use of waste materials has been gaining ground and is being recognized as a sustainable and lower-cost alternative. The aim of this research was to evaluate the geotechnical performance of a soil with the addition of ceramic tile waste in proportions of 20%, 40% and 60%, with a view to improving its physical and geomechanical properties for application in engineering works. To achieve this objective, the physical characterization of the samples was carried out using particle size tests, consistency limits, specific grain mass and permeability at constant load, as well as the compaction, simple compression, one-dimensional densification and California Support Index tests to verify the geomechanical characteristics. There was a change in the plasticity characteristics as soon as the 40% ceramic waste was added, from highly plastic to moderately plastic. With regard to the permeability coefficient, there was a 10-fold increase for the samples composed of 40% and 60% ceramic waste. For the unconfined compressive strength, there was a progressive drop in the tensile strength as the waste was added. As for the California Support Index, there was an increase in strength from the incorporation of 40% waste, with a gain of 176% and rising to 332% when 60% waste was added. The analyses carried out indicate that it is feasible to use the sample containing 20% ceramic waste in landfill cover layers, meeting the requirements of NBR 13896/1997. All the samples can also be used as road embankments, in accordance with DNIT standard 108/2009, and the sample containing 60% ceramic residue is suitable for use in road sub-base layers, in accordance with DNIT standard 141/2022. It was concluded that the recycling and reuse of ceramic waste as aggregates proved to be viable and advantageous from an environmental point of view, since there is the possibility of applying this material in new engineering processes, reducing the amount of waste sent to landfills and also reducing the extraction of finite natural raw materials.

COMMITTEE MEMBERS:
Externo à Instituição - INALDO JOSÉ MINERVINO DA SILVA
Interno - BRIVALDO GOMES DE ALMEIDA
Presidente - ROMILDO MORANT DE HOLANDA