Of Cement Stabilized Gravel Shrinkage Crack Control Study

The stable crushed stones base course of cement easily produces the shrinkage crack under the effect of temperature or humidity change owing to the fact that its property is very fragile. In view of this, this paper has grasped the research situations and trends of home and abroad about this problem by consulting a large number of international documents. Starting at the aspect of material component and project measure, and by a large number of test research and the analysis of theory, this paper has thoroughly studied the stable crushed stones base course of cement about the shrinkage crack prevention and cure problem. Material component aspects research indicates that doing the base course on asphalt pavement by the stable crushed stones of the cement using the dense skeleton structure type, the result can greatly lighten crack in the asphalt surface; and Having put forward the application base course in advance saw kerf + geotextile to guard against the split measure in project measure research, which can artificially controls interval of base course crack and effectively prevents the kerf expension from producing the reflection crack in asphalt surface, thus can raise the quality that the road surface is used and prolongs life-span of road service.