Our impermeable barrier systems are made from clean, natural aggregates, fillers, sand, and bitumen and are installed using specialized laying and compaction techniques developed and refined by our engineers and technicians. Due to its high material density, Dense Hydraulic Asphalt is resistant to chemical and biological as well as mechanical forces or deformation.

What special qualities make Dense Asphaltic Concrete (DAC) an ideal lining system?

• Totally impermeable against very high pressure of water and liquids without joints.
• Resistant to ageing with proven longevity.
• Withstands large and rapid changes of water levels and temperature.
• Extremely stable, even on steep slopes of up to 150 m (500 ft) long and gradients in excess of 1:1.2.
• Very robust, can withstands traffic, rock falls or ice abrasion immediately after placing.
• Remains very flexible, even under extreme pressure.
• Quick to lay with outputs of over 5,000 m2 (53,000 sq.ft.) achieved on a daily basis.
• Environmentally friendly and non-toxic.
• Approved by Regulatory Bodies around the world