Overview on the Effects of Low Temperature on Concrete Performance and Electrical Resistivity

Research on the mechanical properties and electrical resistivity of low-temperature concrete is a critical topic in the field of concrete engineering. With increasing demands for infrastructure construction in cold environments, understanding the effects of low temperature on concrete performance has become particularly vital. This paper reviews recent advancements in studies on the mechanical properties and electrical resistivity of concrete under low-temperature conditions. Research indicates that low temperature significantly impacts the compressive strength, tensile strength, and toughness of concrete, typically leading to reduced strength and increased brittleness. Furthermore, the electrical resistivity of concrete, a key indicator of its electrical performance, is also influenced by low temperatures, often showing an increase due to variations in pore water and microstructural changes. These findings provide a theoretical foundation and practical guidance for the application of concrete in low-temperature environments, advancing the technological development of cryogenic concrete. Future research should focus on the long-term durability of low-temperature concrete and its applicability under extreme climatic conditions to address increasingly complex engineering challenges.