Study and Propose a Formula to Determine the Temperature Gradient Used to Calculate the Thermal Curling Tensile Stress for the Cement Concrete Pavement Slab in Vietnam Conditions

When calculating and determining the thermal curling tensile stress of cement concrete pavement, it is necessary to determine the temperature difference between the top and bottom (Δ T ) of the pavement. In another word, it is necessary to determine the maximum temperature gradient (Δ T ¯max ) and temperature gradient (Δ T ¯ ) for that designed pavement. Currently, in order to determine Δ T ¯, depending on the specific conditions of each country, each climatic region, there must be appropriate regulations and calculation procedures. The particular determination depends on the air temperature and solar radiation and its pavement thickness. Therefore, in this paper, the authors would like to propose a formula to help the design engineer quickly and reasonably determine the temperature gradient (Δ T ¯ ) value of the concrete sheet of M40 compression strength depending on the pavement geography location and the pavement thickness. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.