The Phenomenon of the Serviceability of Concrete Motorways after 55 to 60 Years under Traffic

Paper by PFEIFER from ISCR 7th 1994 Vienna Austria

At present there are still many hundreds of kilometres of concrete motorways in the former East Germany which were constructed in the thirties. The phenomenon is not the fact that now, especially after the last winter, a lot of them have reached a critical condition, but that until today all of them were usable for heavy traffic and high speed. It seems worthwhile to ask how so many very old concrete road sections are still suitable for traffic, and to draw conclusions about the future development of concrete road design.

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