Analysis on Causes and Prevention of Crack in Cement Stabilized Macadam Base of Certain Second Class Highway

Cement stabilized macadam base is the structure widely used for highway pavement in our country.It has the characteristics of high strength and good water stability.However since the binder is cement and the construction technical requirement is strict,good construction control environment is needed;otherwise early crack may be caused easily.The comprehensive prevention measures with respect to raw material,construction and maintenance are proposed to ensure the normal service of highway pavement.