Open AccessTemperature dependence of dynamic and static modulus of elasticity of lightweight expanded clay aggregate concrete
Author(s) -
А. Н. Медведев,
Andrey Cherkasov,
Evgeny Tararushkin
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2094/4/042052
Subject(s) - aggregate modulus , materials science , dynamic modulus , aggregate (composite) , composite material , young's modulus , modulus , elasticity (physics) , bulk modulus , elastic modulus , compressive strength , dynamic mechanical analysis , geotechnical engineering , geology , polymer
The paper presents experimental research the static and dynamic modulus of elasticity of lightweight expanded clay aggregate concrete with averaged density of 1000 kg/m 3 . The static and dynamic modulus are obtained depending on the influence of temperature in the range from 5 to 50 °C with a step of 15 °C. The dynamic modulus was determined without pre-compression with a testing machine Asphalt Mixture Performance Tester. Besides the modulus of elasticity of lightweight concrete, the temperature dependence of unconfined compressive strength was also determined. Analysis of experimental data showed that with an increase in temperature, strength and modulus of elasticity slightly decrease, which is typical for concretes. For all cases, the temperature dependence can be characterized according to the linear law. Comparison of the static and dynamic modulus of elasticity showed that the dynamic modulus is 60-74% greater than the static modulus over the entire range of the studied temperatures.