Clariant’s low emission modifier boosts long-term performance for hot climate asphalt

Muttenz, February 3, 2010 - Specialty chemicals expert Clariant showcases the energy-saving and emissions-reducing benefits of its Licomont® BS 100 modifier for long-term hot climate asphalt performance, at Euroforum’s Asphalt 2010 event in Berchtesgaden, Germany from February 3-5, 2010, Booth#A09.

Licomont BS 100 is a low molecular asphalt modifier based on fatty acid derivatives that can increase the life expectancy of road surfaces, particularly in high temperature environments. By improving adhesion and compacting levels within the asphalt mix and increasing the hardness of the asphalt, it ensures optimal resistance to traffic and climate-induced deformation even when processed at the low temperature of 140°C.

The low processing temperature of Licomont modified-asphalt brings costs savings to asphalt producers and environmental benefits by reducing energy consumption during manufacture of the mix, and during transport and paving.

Use of a low paving temperature also reduces heat radiation and vapor generation by the modified asphalt, helping to lower CO2 emissions. This contributes to minimizing greenhouse gas emissions in line with stringent German regulations and tightening legislation in Europe.

Licomont BS 100’s excellent deformation resistance at high temperatures helps road surfaces withstand the high pressure forces of heavy traffic loads. Resistance to crack formation at low temperatures is also maintained. This reduces the potential for surface damage and wheel tracks which can cause aquaplaning, and improves comfort for road users. Lower maintenance needs mean less travel disruption and knock-on cost savings for road authorities.

The weather resistance of asphalt modified with Licomont BS 100 is improved through its good flow. This ensures a high degree of compacting between asphalt and the minerals during construction which reduces porosity.

High flowing asphalt also adds production benefits. Incorporation of Licomont BS 100 into both the asphalt and the mixed material provides lubrication which can help to protect machinery wearing parts.

Guenther Heiling, Clariant’s global Technical Marketing expert for waxes for asphalt modification comments: “The permanent increase in road loading, through increased traffic volumes, the use of super-single truck tires and new axle load and laden weight limits, is an ever greater problem for the global roads industry. The need for road surfaces capable of withstanding this while also responding to environmental concerns is a major issue. The benefits of Licomont BS 100 in meeting this challenge can be felt with as little as 3% added to bitumen, and we are looking forward to presenting its long-term value to the Euroforum Asphalt 2010 audience.”

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