Banca de DEFESA: PEDRO VALLE SALLES

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : PEDRO VALLE SALLES
DATE: 02/03/2023
TIME: 14:00
LOCAL: https://conferenciaweb.rnp.br/events/defesa-de-tese-pedro-valle-salles
TITLE:

HIGH PERFORMANCE CEMENTITIOUS COMPOSITES WITH FINES FROM CONSTRUCTION AND DEMOLITION WASTE

KEY WORDS:

Construction and demolition waste; recycled powders; cementitious composites

PAGES: 106
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Construção Civil
SPECIALTY: Materiais e Componentes de Construção
SUMMARY:

The use of construction and demolition waste (CDW) is of great importance when it comes to sustainability in civil engineering. The use of this waste as recycled aggregates is something widely studied, although it is little used in practice in the national context. However, due to the massive amounts of waste generated worldwide and the increasing difficulty of final disposal, it is necessary to develop new techniques for recycling these materials. In this context, the possibility of using these wastes as mineral additions to cementitious composites arises. The present thesis presents three possibilities of using these wastes. Its main goal is to evaluate the suitability of powders from CDW as supplementary cementitious materials and/or binders. First, the partial replacement of Portland cement or silica fume by recycled powder from masonry bricks is being studied. Subsequently, the possibility of recycling the powder from hydrated cement pastes is evaluated by heat treatment it. This powder will serve as a substitute for Portland cement in high performance concrete mixes. Finally, the possibility of manufacturing a mixture containing only CDW, as a binder and pozzolan, in its constitution, is evaluated, thus aiming at obtaining proportions between recycled powders that allow materials with structural strength. As an expected result common to the studies, it is expected to show the feasibility of manufacturing cementitious composites with recycled CDW powders in their constitution.

COMMITTEE MEMBERS:
Interna - FLAVIA SPITALE JACQUES POGGIALI
Interno - CONRADO DE SOUZA RODRIGUES
Interno - AUGUSTO CESAR DA SILVA BEZERRA
Externo à Instituição - WHITE JOSÉ DOS SANTOS - UFMG
Externo à Instituição - GUILHERME JORGE BRIGOLINI SILVA - UFOP