Research on Forming Mechanism of Inchoate Cracks in Cement Concrete Pavement

To provide a new method of the design and calculation of concrete pavement,based on the characteristics of the interface between the surface and base of cement concrete pavement, the forming mechanism of inchoate cracks in concrete slab is analyzed, tensile stress resulted from base restriction to concrete shrinkage is calculated by using the existing model, and its effect on inchoate cracks in cement concrete pavement is discussed. Furthermore, the effect of conerete inchoate cracks on the performance and fatigue life of concrete pavement is investigated using the fracture mechanics principle.