In July 2019, Highways England made the decision to close a 19km section of the M2 in North Kent for an entire weekend to allow planned maintenance to be carried out.
Although unusual in nature, the 22-hour closure gave FM Conway the time required to resurface both the eastbound and westbound carriageways.
FM Conway Surfacing Director, Paul Padfield, said:
“What we achieved in 22 hours would probably have taken five nights of individual overnight closures. A full weekend closure definitely gives efficiencies from an operational point of view.”
On both carriageways the teams were required to plane out the existing road to a depth of 50mm and replace it with a new 50mm asphalt surface course. In some sections a further 50mm was required to be taken out and replaced with 50mm of new binder course before being topped with the new thin surfacing.
In total the amount of material used on the project equated to 450t of binder course and 2,250t of surface course. This worked out as an area of 5,575m2 of both binder course and surface course, with an additional 19,660m2 of surface course only.
FM Conway’s Aggregates and Asphalt Distribution Manager, Aiden Rhodes, said:
“This was a big undertaking due to the sheer volume of tonnage in and out, and the volume of vehicles needed. It involved co-ordinating vehicles from all our asphalt plants. The Aggregates and Asphalt division had to organise the delivery and replenishment of over 4,000t of materials for the M2 alone – as well as other material requirements to the rest of the business.”
The company carried out all the planing and surfacing with its own equipment and operatives, but also supplied all the material from its asphalt plant in Erith, and delivered it using the company’s haulage fleet.
The recovered planings were also taken to the one of FM Conway’s aggregate depots for recycling, with up to 66 lorries taking materials in and out of the site during the weekend closure.