不同成型条件下半刚性基层力学性能对比研究

Comparative study of semi-rigid base mechanical properties under different molding conditions

同种材料铺筑的半刚性基层因具有良好的力学性能被高等级公路普遍采用。文章通过对不同成型条件下(试件上下层成型间隔时间分别为0 d、7 d和30 d)的半刚性基层进行了力学性能研究分析,结果显示:对于抗压强度,时间间隔为7 d的强度较高;对于其他力学性能,随着成型时层间接触状态条件的下降,其性能变差,具有明显的规律。

The semi -rigid base paved by the same materials is widespread adopted in high grade highway due to the good mechanical properties. Based on the mechanical performance analysis of semi - rigid base under different molding conditions （ specimen molding time interval of up and down level respectively 0 d, 7 d and 30 d） , the results showed that for the compressive strength, the time interval of 7d has higher strength; for the other mechanical properties, its performance became poor with the declining of interlayer contact state conditions, has obvious regularity.