Densit - Composite Paving Material

Densit ApS is the supplier of Densiphalt®, a semi-flexible and joint-free pavement proven to be an optimum solution in airports worldwide. Densiphalt® is a composite paving material that as a pavement system combines the flexible properties of asphalt with the static bearing capacity and durability of concrete, including further advantages as superior resistance to rutting and minimum down-time due to fast-track application.

OUTDOOR AND INDOOR AIRPORT PAVING

Operations in airports constantly expose pavements to stresses such as:

• Heavy static loads from parked aircraft
• Rutting resulting from heavily channelled traffic
• Spills of jet fuel, hydraulic oil and de-icing liquids
• Temperature variations: high temperatures, freeze / thaw cycles, etc.

Densiphalt® is a proven pavement solution in airports both outdoors in heavy-duty areas like aircraft aprons, push-back areas, runway ends, apron taxi-ways, interchanges, refuelling pads and de-icing areas and indoors in cargo centres and hangars. Densiphalt® can be advantageous for both new-builds and renovations.

ADVANTAGES OF DENSIPHALT® SEMI-FLEXIBLE AND JOINT-FREE PAVEMENT

The composition makes Densiphalt® a semi-flexible and joint-free pavement that combines the flexible properties of asphalt with the bearing capacity and durability of concrete, resulting in the following key benefits:

• Jointless and impermeable surface
• Good wear resistance and high bearing capacity
• Very good freeze / thaw resistance
• Rapid installation – minimum down-time
• Can be trafficked after only 24 hours curing at 20°C
• Superior resistance to rutting and point loads
• Minimum maintenance

Densiphalt® consists of an open-graded asphalt with a void content of 25%-30%, which is filled with the Densiphalt high-strength mortar developed by Densit ApS. The raw materials of Densiphalt® are strictly controlled. The dry mortar is then mixed in a mixing unit and laboratory inspected in accordance with the Densit ISO 9001 certified quality control system.

Densiphalt® is applied as a 30mm-100mm layer, and is laid on an adequate base course such as asphalt, CBM or standard concrete. Densiphalt can be coloured in a variety of shades. Densit ApS operates globally through a large and growing network of partners and trained applicators.

GLOBAL AIRPORT REFERENCES

Densiphalt® has been applied at airports worldwide, including:

• London Heathrow Airport, UK
• Arlanda Stockholm, Sweden
• Newcastle Airport, UK
• Frankfurt Airport, Germany
• Linate Airport, Italy
• Honolulu Airport, USA
• Copenhagen Airport, Denmark
• Düsseldorf Airport, Germany

ENVIRONMENTALLY FRIENDLY AIRPORT PAVING

"In general, the atmospheric emissions are lower for the Densiphalt® system than for a reinforced concrete system. In particular, the greenhouse gas emissions (including carbon dioxide, methane, and nitrous oxide) are lower for the Densiphalt® system than for a reinforced concrete system.

"Process emissions of carbon dioxide from cement production are a larger factor for a reinforced concrete system (which contains approximately 16% by weight of cement) than for the Densiphalt® system (which contains less than 4% by weight of cement).

"Of the 23 atmospheric emission categories evaluated in this analysis, the Densiphalt system is higher than the reinforced concrete system only for two of the categories!"

Source: Life cycle inventory of reinforced concrete and Densiphalt paving products by Franklin Associates - a division of Eastern Research Group.

ABOUT DENSIT

Densit was founded in 1983 and is a company in the ITW Group. Densit ApS is specialised in developing, producing and supplying high-performance solutions for industrial strengthening and repair - solutions all based on the unique high-strength and dense cement-based Densit materials. Densit high-performance solutions are applied worldwide for:

• Industrial flooring and pavements
• Reinforcement of oil and gas platforms
• Offshore wind turbine foundations
• Security barriers
• Wear protection solutions