The roughest enemy of the fubganger zone pavement was missing on tuesday when the construction committee went on site to get a picture: the frost. It had caused ripples in the pavement, in a coarse order that has not occurred before. Although the mild weather has caused many of the slabs to settle again, during the subsequent meeting the committee endorsed the urgent order issued by mayor kay blankenburt (SPD): the immediate replacement of the slabs on a five-meter-wide strip that will run through the upper and lower market streets as well as the market square.
The solution with the narrow asphalt strip was only conceivable because the redesign of the pedestrian zone is foreseeable, said blankenburg, explaining this decision. For safety reasons alone, something had to be done, as the fubganger zone had become an extreme tripping hazard. It would also have been conceivable to relocate the plates again, but according to OB there was then a danger that they would come up again this year.
High repair costs
The head of the civil engineering department, thomas hornung, explained the financial aspect of the project. The asphalting will cost around 100.000 euro. In the past year alone, the same amount was spent on immediate repairs to the plate covering.
As thomas hornung explained, the 1. Construction phase possibly as early as friday, 1. February, be completed. Immediately following the rest. In addition, hornung pointed out that the plates have been set on chippings instead of concrete for repairs for a good seven years now. Because the concrete needs a good two weeks to set, and nothing works in frosty weather.
OB blankenburg, however, has no doubt that there are certain areas, also loaded, where asphalt cannot be used even for the time being. For example in front of the regentenbau.
Necessary and right
CSU caucus spokeswoman klaudia schick described the urgent decision as necessary and correct, and gave the mayor support on another point. The asphalt should not be replaced prematurely with flagstones, but only as part of the overall rehabilitation of the fubganger zone. In view of the safety aspects, there were no objections from the other groups either.
Hornung had previously explained why the bad kissing fubganger zone in particular has to contend with frost damage to such an extent. At a relatively shallow depth, there is a layer of concrete impermeable to water. This had been demanded by the water authority for reasons of protection of medicinal springs. When the walkway zone is generally renovated, this sealing concrete layer should lie much deeper, namely around 80 centimeters below the surface. This leaves enough space for a dranage, which is supposed to divert the penetrating water into the sewage system. The head of the civil engineering office described this future solution as a "quantum leap".
Marktstrabe and marktplatz are not the only flat areas with "frostbites" have to fight. Even in the kurhausstrabe, which has been plated for 27 years now, and in the plated area of the prinzregentenstrabe, there is massive damage every year, with plates lifting and corners breaking off. "In three to four years, the situation will be even worse" predicted hornung. And at some point, there will also be a need for action in ludwigstrabe. Especially in the area of the gutters, because there natural and artificial stone collided with each other. These two materials expand differently when exposed to heat, causing water-permeable cracks in the joints.