Abstract:In order to research the mechanics and shrinkage functionality rule of low dosage of cement modified graded macadam, raising awareness of low cementitious base structure. Through different age and cement the unconfined compressive strength, splitting mild, California Bearing Ratio, compressive modulus of resilience and drying shrinkage test, reveals the law of mechanics and the shrinkage changes, and the logarithmic growth prediction model of four mechanical parameters such as strength and modulus with age and cement content was established, as well as the mutual transformation relationship model between the above parameters corresponding to age. The results indicate that the time and cement dosage have notable effects on the mechanical and shrinkage properties of the low dosage of cement modified graded crushed stone, and the recommend cement content amount is more suitable in the range of 2.0%~2.5%.