创新故事

伦敦M25环形高速公路

A line of trucks on the London Orbital Motorway, preparing to pour highly modified asphalt on a new roadway
介绍

1986年开通时,M25或伦敦环城高速公路是欧洲最长的环形公路(188公里或117英里)。自那时起,该高速公路一直不断满足大伦敦地区日益增长的交通需求。

挑战

Recognizing the finite nature of resources for road building and the growing needs related to pavement maintenance, one of Britain’s leading infrastructure companies FM Conway was searching for a better way to provide maintenance service to M25.

决议

In collaboration with Toppesfield, FM Conway designed a special mix for resurfacing an M25 motorway section. The innovative design allowed for 50 percent recycled asphalt use. To enable such high recycled material content in the surface mix, bespoke premium polymer modified bitumen (PMB) was used. According to FM Conway, “The PMB was added to significantly improve the surface course durability by improving rutting and cracking resistance.”

FM Conway conducted an extensive laboratory evaluation of their new mix. They proved that such a far more sustainable solution could achieve the performance level of conventional surface treatment, which contains only up to 10 percent recycled material. As a result, the company’s new 50 percent recycled content asphalt mix solution was the first of its kind to be used on the UK’s strategic road network. In September 2019, FM Conway applied the mix solution to an M25 section between junctions 25 and 26, laying a 4.5 cm (1.8 in) thick layer.

相关产品和信息

延伸阅读

探索更多见解、新闻和成功案例。

Highway in Brazil, winding through trees and hills, paved with highly modified asphalt.
SC-114 道路翻新
SC-114因疲劳损伤和偶尔的热裂而需要修复。最初的修复计划要求使用水泥进行全深度再生(FDR)。然而,全深度更换过程涉及交通中断,因此需要考虑时间和安全因素……
阅读更多 SC-114 道路翻新