Sewage treatment works
Concrete waterproofing products for use in sewers and sewage treatment plants need to be specifically designed to cope with the additional stresses caused by:
- Continuously changing degree of contamination
- Environmental effects
- Fluctuating liquid level
- Formation of aggressive microclimates in sealed holding tanks
Drybase Tanking Slurry has been designed to provide protection in these demanding environments. Used in conjunction with Drybase Active Crystalline Slurry, these products can be used to waterproof sewers and sewage treatment plants in new construction and refurbishment projects. Areas of application include:
- Sewers
- Spillways
- Rotating scraper blades
- Sandfilter beds
- Settlement and treatment tanks
- Pump sumps
- Box outs
- Inspection shafts
- Manholes
- Channels
- Interceptors
- Inlets
Drybase Tanking products can be combined in different ways to deal with various situations:
- Waterproofing – Drybase Tanking Slurry and Drybase Active Crystalline Slurry
- Re-profiling and coating – Drybase Universal Mortar
- Protection of concrete against sewage – Vandex Super or Vandex BB75 Z
- Increasing surface resistance – Drybase Lime Inhibitor Concentrate
- Protection for extreme loads – Vandex Polycem Z
The latest addition to the range, Vandex Polycem Z incorporates a specially developed polymer to provide additional protection in the hydrogen sulphide corrosive atmospheres encountered in enclosed sewage tanks. Vandex Polycem Z also offers protection against aqueous sulphate solutions and liquid manure.