Study on compressive rebound modulus of semi-rigid materials under different temperature products

Inorganic binders stabilize gravel;  temperature product;  Modulus growth rate

In view of the large difference in the performance of semi-rigid materials paved in different seasons, and the design index - modulus cannot be determined in combination with the actual application conditions, resulting in deviation in structural design, the modulus change characteristics of cement gravel, cement fly ash gravel and dilime gravel under different temperature conditions are studied. By establishing the relationship between the temperature product and the modulus growth rate of the above three types of mixtures, combined with the 10-year climate survey data of a certain place in Hebei, the modulus standards of the above three materials based on different temperature products are quantitatively recommended, and the relationship between indoor test results and practical application is closer, and the research results and methods can be used for reference in other regions.