| In this paper, it is studied that the reason and methods of crack performed in cement stabilized semi-grid subbase. Studied on the shrinkage crack in cement stabilized semi-grid subbase, the mechanism of crack performed and developing course in asphalt pavement were analyzed in theory based on the theory of elastic layers system theory and fatigue theory. The theory support to the study on anti-crack of cement stabilized subbase. To improve the grade of macadam and to add flyash may reduce crack in cement stabilized subbase. To add polypropylene may reduce the shrinkage crack. It is evidence that the crack was reduced by laboratory and test road. |
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