Cement Stabilized Gravel Mixture With The More Than Design And Road Performance

Cement stabilizing aggregate mixture easily produces the shrinkage crack owing to the fact that it is very sensitive under the effect of temperature or humidity change. In view of this, this paper has realized the research situations and trends of home and abroad about this problem by consulting a large number of international documents. Based on studying composition and intensity mechanism of cement stabilizing aggregate mixture, test considers that influencing factor that aggregate composition to pavement performance of mixture is primary. Therefore, text begins from designing aggregate composition, the contriving method of coarse aggregate uses gradual vibrating fill, making it forming a skeleton frame that having stronger inherent resistance, the grade of fine aggregate is calculated by I way, making it forming density frame. At last, its form skeleton-density frame after combining coarse aggregate and fine aggregate. Through testing indoor, text studied pavement performance of skeleton-density frame and specification gradation, including mechanical performance, anti-freezing performance, anti-brushing performance, anti-shrinking performance and anti-fatigue performance. Skeleton-density frame is better than specification gradation in any facets, anti-shrinking performance is better than others. On the side, the result of study test road validated conclusion from studying indoor. Generally, cement stabilizing aggregate mixture of skeleton-density frame has better pavement performance.