Research on transition modes of overlay and strengthening on old cement concrete pavement;

In order to prevent reflection cracking,geotextile as a kind of anti-cracking layer between old cement concrete pavement and bituminous overlay is placed,leading to negative effect for bonding performance between layers.

Application research of old cement pavement asphalt overlay technology

To pave with bituminous concrete on old cement pavement could improve the usage function of pavement with the advantage such as short construction stage and less influence on traffic and environment.

Combining with the rebuilding project of Nansan Highway in Zhongshan City, the paper estates the key factor for obtaining the success in rebuilding design of paving bituminous surface on the old cement pavement.

Field vibratory measurement analysis is necessary to the investigation into the vibration of roadside structures caused by the impact compaction of existing cement concrete pavement.

In order to evaluate the bearing capacity of the existing cement concrete pavement with impact compaction and recommend input parameters for the design of overlay pavement structure, it is necessary to conduct field test for the resilient modulus of the compacted pavement.

For the first time, impact compactor with polygon roller for breaking up and compacting old cement concrete pavement slab in rehabilitating engineering of old cement concrete pavement.

By analysis on the structure of old cement concrete pavement,this paper puts forward reconstruction plan,key points of construction and achieved result.