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Surface sealing of Warden landfill

Project period

2012 until 2013


AWA Entsorgung GmbH

Task and implementation

At the former Alsdorf-Warden central landfill, the landfill body was sealed in a section of plot 1 (approx. 28,500 m²) using two different surface sealing systems. On an area of approx. 20,000 m², which will later be used as a commercial area for waste management and energy facilities, a sealing system (from top to bottom) consisting of a media horizon d = 0.6 m, a drainage layer d = 0.3 m, a plastic sealing sheet (KDB) and a geosynthetic clay sealing sheet (GTD) was constructed. The embankment areas with a slope of 1:3 were sealed with a recultivation layer d = 1.3 m, a drainage mat, a plastic sealing sheet and a geosynthetic clay sealing sheet. Subsequently, drainage, gas collection and seepage water pressure pipelines were laid and two aeration and ventilation shafts made of PE for the seepage water pressure pipelines were installed.

Project data

  • approx. 28,500 m² waterproofing system made of KDB and GDT
  • approx. 8,500 m² drainage mat
  • approx. 6,300 m³ drainage layer
  • approx. 13,000 m³ media horizon
  • approx. 1,100 m drainage pipes and drainage lines made of PE, DN 100 to DN 300
  • approx. 1,000 m gas collection pipes made of PE, da 200, SDR 17
  • approx. 1,000 m seepage water pressure pipes made of PE, da 110 to da 160, SDR 11


  1. Basic evaluation
  2. Preliminary planning
  3. Design planning
  4. Implementation planning
  5. Preparation of the awarding of contracts
  6. Participation in the awarding of contracts
  7. Local construction supervision

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