Banca de QUALIFICAÇÃO: ISLA LICELY RODRIGUES BATISTA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : ISLA LICELY RODRIGUES BATISTA
DATE: 16/12/2022
TIME: 14:00
LOCAL: meet.google.com/ijn-yfkm-aey
TITLE:

Influence of the hydroxypropylmethylcellulose content on the mechanical and thermal properties of coating mortars

KEY WORDS:

Mortar, Additive, Thermal performance, HPMC.

PAGES: 10
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Construção Civil
SPECIALTY: Materiais e Componentes de Construção
SUMMARY:

The approach to the thermal performance of buildings has been a recurring theme in the space of scientific research after the development of the performance standard, NBR 15575 (ABNT, 2013). It seeks to improve the thermal performance of buildings mainly through the use of passive cooling techniques in the envelope through cementitious materials that acquire insulating properties with the use of additives that directly or indirectly allow the incorporation of air. Therefore, the present study aims to observe the influence of the use of hydroxypropylmethylcellulose (HPMC) on the thermal and mechanical properties of coating mortars with the addition of 0%, 0.015%, 0.030%, 0.045%, 0.060%, 0.090% of HPMC . To determine the properties of the fresh and hardened state of the mortars, tests were carried out on compressive strength, flexural strength, water absorption by immersion, mass density, modulus of elasticity and water loss by evaporation. The results indicate that the addition of HPMC causes an increase in the void index of the material, resulting in a reduction in the mechanical strength and modulus of elasticity. It is also noted that the incorporation of the additive produces a mortar with lower mass density, resulting in a lighter material and possibly with better thermal properties.

COMMITTEE MEMBERS:
Presidente - ***.403.354-** - KLEBER CAVALCANTI CABRAL - UFERSA
Interno - ***.621.844-** - MARCOS ALYSSANDRO SOARES DOS ANJOS - IFRN
Externa ao Programa - 1717461 - LUCIANA DE FIGUEIREDO LOPES LUCENA - UFRNExterno à Instituição - WENDELL ROSSINE MEDEIROS DE SOUZA - UFERSA