What is BS 1881-209 – Dynamic modulus of elasticity of concrete about?

The modulus of elasticity of concrete is used in the calculations of structural deformations.

BS 1881 is a British Standard series that discusses methods for testing of concrete. The main aim of the BS 1881 series is to provide best industry recommendation on tests to determine whether your concrete and concrete products are fit for purpose.

BS 1881-209 is the 209th part of the series that gives recommendations for the determination of dynamic modulus of elasticity of plain concrete in the laboratory using resonance of vibration in the longitudinal mode.

Who is BS 1881-209 – Dynamic modulus of elasticity of concrete for?

BS 1881-208 on the determination of dynamic modulus of elasticity of concrete is relevant to:

Manufacturers of concrete and concrete products
Construction industry
Civil engineers
Technical experts dealing with cement and concrete technology
Cement manufacturing companies
Quality control and testing personnel

Why should you use BS 1881-209 – Dynamic modulus of elasticity of concrete?

The dynamic modulus is used to determine the relative durability of concrete when exposed to severe climatic conditions as the dynamic modulus of concrete changes with the quality of concrete.

Testing of concrete by the measurement of dynamic modulus of elasticity is a laboratory technique and involves applying an alternating force of variable frequency to the end of a prismatic sample and recording the resonant frequency. The frequency at which this vibration occurs depends largely on the dynamic modulus of elasticity, density, and length of the specimen.

Thus, by accurately determining the dynamic modulus of elasticity of concrete with BS 1881-209-compliant methods, you can determine the quality of concrete, when it is subjected to alternate freezing and thawing.

Adopting BS 1881-209, can be particularly beneficial when it comes to material testing for quality control, to determine whether the materials can contribute to the overall concrete strength, durability and performance.

BS 1881-209:1990

Testing concrete - Recommendations for the measurement of dynamic modulus of elasticity

Current

Published:

30 Apr 1990