Berlin makes it official:
Capital demands insulation + Push-off technology
The added value which Fliegl’s “Asphaltprofi Thermo“ generates for the paving quality and dura-bility of road surfaces is recognized by experts. It is therefore only logical and consistent that more and more authorities define the combination of thermo-insulated container and push-off technology as binding standard for asphalt delivery and make it a requirement for corresponding public tendering as for example the three district offices in Berlin on behalf of which several road sections were reconstructed in the summer of 2016: at Mehringdamm (Friedrichshain-Kreuzberg), at Kurt-Schumacher-Damm (Reinickendorf) and in the area for which the district office Berlin-Spandau is responsible.
A total of up to eight “Fliegl Thermo Asphaltprofis” were used during these measures. They delivered around 2000 tons of bituminous mixture to the construction site Mehringdamm where a surface of around 5000 square meters was paved – in two sub base layers of 7 centimeters each and one 2,5 centimeters thin top surface for which the homogeneity of the material was of key importance. At the Kurt-Schumacher-Damm where 1500 square meters road surface was renewed on August 23rd, the push-off trailers supplied approx. 350 t of bituminous material for the bonding layer and 80 tons for the top layer to the finishers. The district office Friedrichshain-Kreuzberg emphasizes that it will maintain the use of thermo-insulated push-off trailers as a prerequisite in future public tendering. “I would like to point out the extraordinary homogeneity of the delivered mix. It was the basis of the evenness of the road surface after asphalting.” says Helmut Schneider, senior site engineer of the district office Friedrichshain-Kreuzberg.
The „Asphaltprofi Thermo“ has Fliegl High Insulation, i.e. side walls, floor, front and rear wall are fully equipped with “Fliegl Isotherm”. Its fully wind-proof covering lowers temperature losses during transport and prevents oxygen supply which would lead to an oxidation of the binder. This is the only way to preserve the sticking strength of the binder.
The effect: Temperature losses during transport are minimal with the „Fliegl Asphaltprofi Thermo“; the temperature of the bituminous mix is at any time well above 150°C (as required by ZTV Asphalt-StB 07) even on the sides of the container. There are no cold nests. The benefits of the Fliegl push-off technology show their worth when the bituminous mix is supplied to the asphalt finisher: Immediately after docking, the bit-by-bit and at any time metered transfer of the mix to the finisher begins; there is no standstill. The push-off process also leads to a perfect mixing of the asphalt during unloading and thus to a continuous homogeneity. There are no demixing processes which would reduce the final paving quality. As a result, the degree of compaction is at least 98%. The building contractors hence gain safety with the “Fliegl Asphaltprofi Thermo“: The mix is delivered hot and homogenous enough so that the required degree of compaction can be achieved without problems. Thus, high contractual penalties or fines can be avoided.
The “Fliegl Asphaltprofi Thermo“ is also an intelligent solution for difficult asphalt paving situations. Tunnels, bridges and height obstacles pose no problem. The unloading process also works with ceiling heights where dump trucks soon reach their limits. Pushing-off instead of tipping also means greater safety – where nothing is tilted, nothing can tip over. Another advantage is the residue-free emptying of the container during the push-off process. Time-consuming cleaning work in the container can be avoided even with very sticky mixtures.
The additional costs of the use of the „Fliegl Asphaltprofi Thermo” are approximately 1.2 to 6 ‰ of the asphalt building costs. It is worth it to compare theses extra costs with the considerably higher costs for later complaints. Good quality costs money. Poor-quality building work is much more expensive. In terms of advantages, the “Asphaltprofi Thermo” scores with
- significantly higher paving quality and considerably longer durability of asphalt pavements
- even asphalt paving with push-off technology – also in urban situations, underpasses, avenues, gantries and traffic control systems
- higher paving performance – more meters per day
- shorter turnaround times due to low load center
- trouble-free paving of sensitive coverings (OPA, PMA, DSHV, PmB etc.)
Haulage firms or subcontractors which count on the „Fliegl Asphaltprofi Thermo” gain a crucial competitive advantage. They prevent claims for damages and are available to authorities as reliable partners in public procurement procedures. This means: Fliegl‘s “Asphaltprofi Thermo” is not only an innovation in asphalt building but also a useful investment.