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Applicability of models provided by technical standards to estimate the static modulus of elasticity of concretes produced with recycled coarse aggregates
Author(s) -
Sousa Fernando Henrique F.,
Kazmierczak Claudio de Souza,
Quinino Uziel C. D. M.,
Fernandes Ana Júlia M. M.,
Kulakowski Marlova Piva
Publication year - 2021
Publication title -
structural concrete
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.912
H-Index - 34
eISSN - 1751-7648
pISSN - 1464-4177
DOI - 10.1002/suco.201900420
Subject(s) - aggregate modulus , young's modulus , elasticity (physics) , materials science , elastic modulus , composite material , compressive strength , modulus , porosity , dynamic modulus , dynamic mechanical analysis , polymer
This work determines the applicability of models provided by international standards to estimate the static modulus of elasticity of concretes produced with recycled coarse aggregates, identifying the influence of the compressive strength, bulk specific gravity and porosity on the static modulus of elasticity, and the relation between these parameters and the estimated modulus of elasticity. Recycled aggregates produced from concrete and of ceramic blocks were used in a replacement rate of 30% to the natural aggregates, in three classes of strength. The static modulus of elasticity of the concretes produced with recycled aggregates has a higher relationship to the compressive strength than the other properties, the static modulus of elasticity compared to the estimated modulus of elasticity shows good relation only for concretes produced entirely with natural aggregates and the modulus of elasticity of concretes with recycled coarse aggregates cannot be estimated by the models proposed by the technical standards.