The Siltbuster Roadside Concrete Washout Unit (RCW) is designed and developed to capture and treat wash water generated from the cleaning of concrete truck mixer chutes on site.

Siltbuster designed the RCW to specifically address the concerns of the Environment Agency (EA) regarding the potential harm associated with the release of highly alkaline (high pH) waters into the environment during concreting and grouting activities.

The RCW’s simple two stage process initially separates and dewaters the waste concrete solids before its on-board automatic carbon dioxide pH adjustment system neutralises the high pH wash water down to (circa pH 6 to pH 9) limits set by the Environment Agency. The Siltbuster RCW can handle up to 30 washouts spread over a working day and can be operated via its own 12 volt battery, so no power required, or from a 110 volt electricity supply.

Typical applications

  • Batch pours
  • Mixer chute washing

Key features

  • Can be operated by either 12V battery or 110V electricity supply
  • Combines solid removal and pH adjustment with a single integrated unit
  • Easy to operate
  • Suitable for use in remote locations
  • Eliminates the need for the storage / use of strong mineral acids