Wittgen: Application of Cold In-place Recycling of Foamed Asphalt in Tianjin Avenue

Traffic load test for more than 10 years，Cracks have appeared in the road、Rutting and other diseases。

For this reason, Tianjin Avenue Maintenance and Management Center adopted the green and low-carbon foam asphalt cold in-place recycling process for 14. cm （Raw asphalt concrete 12 cm +Raw water stabilization2 cm）The old pavement is regenerated.，Lay 10 more on top of it cm Asphalt concrete surface course，Finally, the maintenance and renovation of the road was completed.。

Wittgen was used in the construction of cold in-place recycling of foamed asphalt W 380 CR Implementation of cold in-place recycling technology of foamed asphalt based on synchronous paving。Compared with the traditional construction scheme，Wittgen W 380 CR An entire lane can be regenerated at one time.，Very efficient construction，You can save 30%Duration，Reduced traffic impact during construction。

In addition，Because W 380 CR An undercutting process is adopted，Uarantee the uniformity of the recycled material，The composition of the recycled mixture can be accurately controlled according to the preset mixing ratio，Can effectively eliminate reflection crack，And greatly improve that quality and the service life of the pavement.。

While reducing the use of new materials and the removal of road waste，It can also reduce emissions by about 70 percent%，Realizing green environmental protection、Energy saving and high efficiency，It has brought remarkable social and economic benefits.。

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