Assessment of Vibration Compaction Process Compaction Ability and Road-base Materials Compacted Property

Abstract:

Road base materials plastic deformation, vibration acceleration and pressure power was acquisition by adpoting sensors in vibration molding process, through the output energy analysis of three parameters vibration compaction process, defined vibration compaction process compaction of ability evaluation parameters-vibration intensity E1; Through analysis of the materials vibration compaction plastic deformation curve, defined the compaction assessment index of road base materials- compaction coefficient L; Comparative study was carried out between different road base materials; The result shows that when the vibration intensity is greater than 3.5, the vibration compaction process just have strong compaction ability; There is a logarithmic relationship between vibration compaction plastic deformation and vibration time ,when vibration compaction after 50 seconds later, plastic deformation was in a stable state; In road materials can be compaction, asphalt mixture compacted ability is the worst, the fly ash and lime combining materials compacted ability is the best, the road base materials compacted ability are basicly at the same level. The results of the study show that, it is reasonable to evaluate the compaction ability of vibration compaction process and road materials compacted ability using vibration intensity E1 and compaction coefficient L.