Tarmacking hotbox attachment

Laying tarmac on roads can be a long, difficult and costly process. Traditionally, tarmacking gangs have to use gas burners in the vehicle to soften the tarmac to make it workable for use on site. Getting to site entails driving through traffic with the gas burners on, which poses a safety risk for all on the road. The current system can therefore be disruptive and dangerous.

See the examples below for how one site addressed this:

  • Developed a ‘hotbox’ which fits on the back of a 7.5 tonne chassis, allowing it to be driven by any normal driving license holder as opposed to a specialist.
  • The hotbox keeps the tarmac soft, meaning there is no need for flames in the vehicle which reduces risk of injury.
  • The vehicle contains all the tools (rakes, brushes, rollers etc.) to undertake tarmacking works, thus making tarmacking more efficient.
  • These vehicles are able to attend emergency situations, such as road traffic accidents, quicker than previously as they are smaller and only require a single driver.
  • The hotbox includes a horizontal screw device that is operated by an electric push button which extracts the tarmac from the vehicle; it stops immediately thus avoiding spillages and waste.
This innovation was achieved on a site with a low project value and a duration of 13 weeks.

Footer Reference

Monitor report. Northern Gas Networks. South Yorkshire. February 2017.

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