Numerical Calculation of Thermal Stress in Cement Rotary-kiln Foundation at an early age

Authors

DOI:

https://doi.org/10.25077/metal.5.2.67-71.2021

Keywords:

Mass concrete, Foundation, Thermal stress

Abstract

This article discusses the early-age thermal stress, caused by the hydration heat, of a rotary kiln concrete foundation. We measure the hydration heat using an adiabatic calorie meter and perform finite volume numerical calculations to obtain the temperature distribution and finite element calculation to determine the thermal stress. The numerical simulation showed significant temperature differences between the core region and surface of the concrete. Compressive stress developed at the core, and tensile stress developed at the surface of the concrete during a heating period. The compressive stress was lower than the concrete compressive strength. The tensile stress was higher than the concrete tensile strength. So that crack developed in the surface. Heat treatment such as post-cooling or pre-cooling was needed to avoid the crack.

Author Biography

Adek Tasri, Mechanical Engineering Department, Universitas Andalas, Indonesia

Adek Tasri is a senior lecturer at Mechanical Engineering Departmen, Universitas Andalas, Indonesia. He Rechieved bachelor’s degree in Mechanical Engineering from Universitas Andalas, Indonesia and PhD degree in Computational Heat and Mass Transfers from Mechanical Engineering Department, Newcastle University, United Kingdom. His research interest include computational heat and mass transfer, mathematical modeling of engineering problems and temperature control of early age concrete.

References

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Published

2021-10-21

How to Cite

Tasri, A. (2021). Numerical Calculation of Thermal Stress in Cement Rotary-kiln Foundation at an early age. METAL: Jurnal Sistem Mekanik Dan Termal, 5(2), 67–71. https://doi.org/10.25077/metal.5.2.67-71.2021

Issue

Vol. 5 No. 2 (2021): Jurnal Sistem Mekanik dan Termal (METAL)

Section

Articles

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