Case study of the dynamics of thermal expansion of concrete in pavements of South Kazakhstan
Shakhmov Z.A. Mukhambetkaliev K.K. Lukpanov R.E. Dyussembinov D.S. Zhumagulova A.A. Bazarbayev D.O. Jexembayeva A.E.
March 2025Elsevier Ltd
Transportation Engineering
2025#19
This article explores the behaviour of concrete samples from road sections that have experienced warping due to temperature fluctuations. Warping refers to the curling of concrete slabs. The paper presents a novel approach to tracking the expansion and contraction of concrete joints over time. It analyses how the size and shape of concrete samples from cement-concrete (hereafter referred to as concrete) roads change under varying temperatures. Additionally, this study investigates the impact of temperature on concrete deformation. It was assumed that as the concretes density and compressive strength increased, the linear expansion coefficient also increased. Furthermore, research has shown that this coefficient can vary along different axes within the concrete volume. This article describes the mechanism behind the deformations observed during the thermal expansion of concrete slabs and identifies the key factors influencing the buckling of concrete slabs as the air temperature rises. The temperature expansion may vary depending on the materials structure, as well as the constant polymorphic transformations of cement minerals within the concrete. These transformations are influenced by ambient temperature, humidity, and the presence of free lime. The factors affecting temperature expansion were determined to be the mineralogical composition of the cement, the concretes strength class, and the cement content within the concrete.
Blow up , Cement-concrete , Cracks , Pavement defects , Temperature expansion
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Department of Civil Engineering, L.N. Gumilyov Eurasian National University, Astana, Kazakhstan
Department of Industrial and Civil Engineering Technology, L.N. Gumilyov Eurasian National University, Astana, Kazakhstan
Department of Science, JSC Kazakhstan Road Research Institute, Astana, Kazakhstan
Science and Production Center ENU-lab, L.N. Gumilyov Eurasian National University, Astana, Kazakhstan
Department of Civil Engineering
Department of Industrial and Civil Engineering Technology
Department of Science
Science and Production Center ENU-lab
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