Banca de DEFESA: DHIEGO HENRIQUE FERREIRA REVOREDO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : DHIEGO HENRIQUE FERREIRA REVOREDO
DATE: 28/06/2023
TIME: 15:00
LOCAL: Programa de Pós-Graduação em Engenharia Civil
TITLE:

Alcali-Silica Reaction in Concrete: A Systematic Review od the Evolution of Predictive Mathematical Models of the Reaction

KEY WORDS:

 Alkali-Silica Reaction; Modeling, Systematic Review, Concrete, Durability

PAGES: 180
BIG AREA: Engenharias
AREA: Engenharia Civil
SUMMARY:

Alkali-silica reaction (ASR) is a degradation mechanism that has a complex chemistry, which causes the deterioration of concrete structure over the years. One of the factors that contribute to the concrete degradation process is the late identification and the lack of technological control in the dosage, due to the use of reactive materials. Due to the need for more durable and better performing structural elements, the best way to avoid this reaction is being sought. Global evaluations comprise the potential reactivity between aggregates and cement alkalis, as well as the identification of the reaction installed in a concrete structure with its current damage, cracks and fissures. Thus, predictive mathematical models have been proposed for ASR. The prediction of concrete degradation and its effects on mechanical properties allows reducing costs and maintenance, ensuring greater durability of the structure. This paper presents a critical analysis of predictive models, interrelating them with the state of the art matured through a systematic literature review. From the systematic review proposed in this research and an overview of the mathematical models, it was possible to analyze the gaps that still exist due to the complexity of the reaction and the possible future trends in the modeling of ASR. The research also highlights: a) the importance of the methodological approach of the literature review to provide a comprehensive and chronological overview of the evolution of ASR; b) the experimental programs, which provide the necessary input data for future models; and c) the need for greater interaction in the modeling process between the areas of materials and structures.

COMMITTEE MEMBERS:
Externo à Instituição - ADOLPHO GUIDO DE ARAÚJO - UPE
Externa à Instituição - ALINE FIGUEIREDO DA NÓBREGA - UFCG
Presidente - 1152919 - ARNALDO MANOEL PEREIRA CARNEIRO
Externo à Instituição - MARCOS ALYSSANDRO SOARES DOS ANJOS - IFPB