Banca de QUALIFICAÇÃO: UESLEI SILVA NUNES

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : UESLEI SILVA NUNES
DATE: 31/01/2024
TIME: 09:00
LOCAL: Auditório do LabCim
TITLE:

THE IMPACT OF THE METAKAOLIN/LIMESTONE RATIO ON THE PRINTABILITY OF LC³-BASED CEMENTITIOUS COMPOSITES

 

KEY WORDS:

3D printing of concrete. Calcined clay limestone cement. Supplementary cementitious material. Mixture experiments design.

PAGES: 40
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Construção Civil
SPECIALTY: Materiais e Componentes de Construção
SUMMARY:

This research aimed to investigate the effect of metakaolin and limestone filler contents on the printability of LC³ mixtures for 3D printing of concrete (3DCP). The study focused on mixtures with high cement replacement in different proportions (ranging from 35% to 45%) and a ratio of 1:3 for metakaolin to limestone filler. The study employed a statistical approach based on optimized experimental planning of mixtures. A water-to-binder ratio of 0.33 and a sand-to-binder ratio of 1.0 were used for all the mixes, and a mix with 100% cement was used as the reference. Printability was evaluated by analyzing extrudability, constructability, pumpability, shape retention, open time, compressive strength, and microstructure.

COMMITTEE MEMBERS:
Interna - 2621720 - ANA CECILIA VIEIRA DA NOBREGA
Externo ao Programa - 1298936 - ANTONIO EDUARDO MARTINELLI - UFRNExterno ao Programa - 2351540 - PAULO ALYSSON BRILHANTE FAHEINA DE SOUZA - UFRNExterna à Instituição - RÍSIA AMARAL ARAÚJO