Skip to main content

The side effect – paving with a road widener

Sidewinder UK has been using its novel road widener machines on a series of paving jobs, including smart motorway projects. Sidewinder UK has carried out work on the M6 smart motorway contract between junction 16 and junction 19. The company used one of its road wideners to place and grade the final layer of sub-base to the balanced central reservation in readiness for Tarmac Contracting to pave the base and binder courses. An estimated 5,000tonnes of sub-base was used in the initial 6.4km x 4.7m wide st
December 13, 2018 Read time: 3 mins
8889 Sidewinder UK has been using its novel road widener machines on a series of paving jobs, including smart motorway projects. Sidewinder UK has carried out work on the M6 smart motorway contract between junction 16 and junction 19. The company used one of its road wideners to place and grade the final layer of sub-base to the balanced central reservation in readiness for Tarmac Contracting to pave the base and binder courses.


An estimated 5,000tonnes of sub-base was used in the initial 6.4km x 4.7m wide stretch of central reservation. This required the balanced central reservation to be paved in two halves projecting each carriageway crossfall approximately 2.5% to a centre crown. 2399 Tarmac then paved approximately 240mm of base and binder courses, on top of which the concrete barrier was installed.

The 6.4km section of central reservation was one component of the work to upgrade the M6 to smart motorway status between junction 14 and junction 20. The previous phase of the work from junction 19 to junction 20 was managed by 1146 Balfour Beatty, for which Sidewinder UK also laid the sub-base to a similar design for GPL Group and paved the Permaflow concrete for Roocroft Road Restraint Systems.

The company has carried out work for other projects in the UK using its road widener. This includes work on the M20 between junction 10 and junction 8 for Balfour Beatty which is to implement the new Rack and Stack system for the tunnel. For night working on the M180, the machine was used to lay 340tonnes of 14mm SMA along a 1.3m width. And one Sidewinder was recently commissioned by Toppersfield and Carney Construction via Hoctief UK to work on the Shinfield bypass near Reading. The work required the firm to place sub-base 150mm thick, followed by binder and wearing course to a width of 2.5m.

In a move to broaden its operating base, the firm has been opening new depots in the North, South and West of the UK enabling it to provide a better service and reduce mobilisation costs. The company has also expanded its equipment fleet and the five machines now include the smaller 7tonne OP2500, the 9tonne OP3000 and the 16tonne OP4000, which offer paving widths from 2.5-4m wide. Ongoing developments have recently included the addition of screed augers to improve material flow across the width of the screed and vibration to benefit compaction.

For more information on companies in this article

Related Content

  • New Zealand’s Waterview project is moving closer to completion
    December 13, 2016
    New Zealand’s biggest road project is less than a year away from completion, and a lot of progress has been made since World Highways last looked at the project two years ago - Mary Searle Bell reports New Zealand’s Waterview project is moving closer to completion and will be the largest road project in the country. The NZ$2 billion Western Ring Route will see the creation of an alternative motorway to State Highway 1, which runs through the centre of Auckland. The 47km-long motorway will allow a large p
  • Atkins sells stake in London’s M25 ring road
    December 14, 2016
    Infrastructure engineering firm WS Atkins sold its stake in London’s M25 orbital road to a consortium of institutional investors for nearly €79 million (£66.3 million). Atkins, a publicly listed UK company, sold to Edge Orbital Holdings 2 Limited and the deal for its minority stake is expected to be complete by March 2017, the end of the financial year, according to a statement by Atkins. In October, the Edge Orbital consortium picked up Skanska’s 40% stake in Connect Plus, which manages the M25. Skanska so
  • Paving a Japanese airport within strict time constraints
    September 19, 2012
    In Japan, major efforts are being made to both conserve energy and materials, while also delivering high quality airport runways. At Haneda Airport, as well as at the Fukuoka, Chitose and Sendai airports, innovative use is being made of asphalt paving equipment from Sumitomo. The latest model HA60W J paver from Sumitomo is being used to lay warm mix asphalt, while the contractors is also using sophisticated control technology. To minimise disruption to flight schedules, construction work at Haneda has been
  • Recycling advances from Wirtgen
    June 18, 2012
    German firm Wirtgen is retaining its lead in road recycling technologies – Mike Woof writes Tests on cold recycling with a new layer thickness using Wirtgen's sophisticated WR 4200 machine have shown impressive results according to the firm. The road construction and traffic authority Landesbetrieb Mobilität (LBM) Cochem-Koblenz commissioned a pilot project as part of its plan to optimise the cold in-place recycling process (CIR). The aim was to examine the extent to which the layer thickness can be reduced