Experimental Investigations on the Long Term Material Properties of Rubberized Portland Cement Concrete

The paper presents the results of a research work aimed at assessing the long-term strength and elastic properties of rubberized concrete. The parameters of the research were the rubber replacement of fine aggregates and the age of testing the specimens. Compressive and splitting tensile strength of...

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Bibliographic Details
Published in:Applied sciences 2021-11, Vol.11 (22), p.10868
Main Authors: Toma, Ionut-Ovidiu, Alexa-Stratulat, Sergiu-Mihai, Mihai, Petru, Toma, Ana-Maria, Taranu, George
Format: Article
Language:English
Subjects:
Age
Aggregates
Cement
Compressive strength
Concrete
Concrete mixing
Damping
dynamic modulus of elasticity
Elastic properties
long term properties
material damping
Material properties
Mechanical properties
Nondestructive testing
Particle size
Portland cement
Portland cements
Power plants
Rubber
rubberized concrete
Splitting
Storage modulus
Structural members
Tensile strength
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Summary:The paper presents the results of a research work aimed at assessing the long-term strength and elastic properties of rubberized concrete. The parameters of the research were the rubber replacement of fine aggregates and the age of testing the specimens. Compressive and splitting tensile strength of concrete cylinders were obtained at the age of 5 years, coupled with the static and dynamic modulus of elasticity of all concrete specimens. Additionally, the material damping coefficient was assessed by means of non-destructive tests. The density of the rubberized concrete decreases with the percentage replacement of natural sand by rubber aggregates. A significant drop in the values of density after 5 years was observed for specimens made with rubberized concrete. The static and the dynamic moduli of elasticity decrease with the increase in rubber content. A similar trend is observed for the compressive and tensile splitting strength.
ISSN:2076-3417
2076-3417
DOI:10.3390/app112210868