An impressive team effort with digital support
Various PORR divisions are involved in the work on the 16th construction phase of the A100. As part of lots 5 and 6, the civil engineering division worked in a consortium with the specialist civil engineering division to build waterproof road troughs over a length of around 800 meters and constructed the new bridges over the ring road at Treptower Park and Kiefholzstraße. Verkehrswegebau Berlin was commissioned with the entire road construction over a length of 3.2 kilometers.
More than 134,000 tons of frost protection layer and 75,000 tons of asphalt were laid during the course of the road construction. In addition, more than 7 kilometers of box gutters were laid and more than 15,000 cubic meters of concrete mix were used for the concreting of emergency sidewalks and median strips - including 2,250 cubic meters of reinforced air-entrained concrete of monitoring class 2 with external monitoring for the emergency sidewalk caps.
“We were able to achieve this impressive performance through precise coordination of the trades and efficient time management, but digital tools also played a key role,” says project manager Michael Werk. Thanks to the intelligent control and monitoring of the construction processes using the Smart Site One (SSO) logistics control system, asphalt deliveries and paving were optimally coordinated, thus avoiding delays. In addition, the required quality was ensured by comprehensive compaction checks within the rollers.
Demanding paving of porous asphalt
Laying the porous asphalt over an area of 64,000 square meters in just two weeks was a central and technically challenging part of the construction project. This asphalt can reduce traffic noise by up to 5 decibels, which makes it indispensable for the urban highway that runs through a densely populated area. The challenge during paving lies in the precise compaction of the mix. It must be stable enough, but must not be over-compacted. Too much compaction would reduce the voids in the asphalt, which are necessary for noise reduction and drainage. Finding the right balance requires specialist knowledge and special construction machinery.
