| Summary: | 碩士 === 中原大學 === 土木工程研究所 === 105 === Abstract
Key words：patch repair、DCPD、binding of interface、direct shear test
When the pavement is vibrating compacted or rolled, it is easy to have the problem of lacking compaction degree in the interface of path. The increasing porosity of asphalt pavement makes the water immersion increasing. It can make the durable of asphalt pavement decrease. Before the work of path, it is usually using the cutting machine to cut the pavement near the path. When the new material of asphalt concrete is filled and compacted, the new material of asphalt concrete can’t bind completely with old asphalt pavement in the interface. After the work of path, the frequently traffic loading can make the interface to have shear damage easily. Therefore, improving the efficiency of path and extending of durability not only solve the traffic problem from frequent road construction, but also reduce effectively the problem of safety by the road potholes. In the other side, it also can reduce the waste of asphalt concrete.
p-DCPD can infiltrate the new material of asphalt concrete and the old material of pavement by high permeability. It can infiltrate effectively in the porosity of the asphalt concrete. It can also improve the problem of lacking bearing capacity due to the lacking compaction degree in the interface of path. Not only p-DCPD can infiltrate the new material of asphalt concrete and the old material of pavement by high permeability, but also p-DCPD is high toughness and high bearing capacity can increase effectively the binding in the interface of path. It can make the behavior of force to be the same.
After the study that p-DCPD applies at the simulation of interface in the patch, it can increase effectively the ability of resisted shear force. It also can increase the binding of the interface, the durability and usability in the patch.
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