Reconstruction and Recycling of Concrete Pavements

Paper by VOLLPRACHT from ISCR 8th 1998 Lisbon Portugal

After 30 to 35 years heavy traffic loading concrete motorways have to be reconstructed. In Germany, the old concrete pavement was ]ft in its place and overlaid with a new pavement. This reconstruction method may be really economical under definite circumstances but is hardly practicable for the contemporary reconstructions, especially from the ecological point of view. Therefore full-depth reconstruction has been used more and more for years. The paper covers criteria for the choice of overlay or inlay and deals with both methods. Reclaimed concrete has to be re-used and has been re-used for new concrete and base material. Both possible uses are described, and requirements, execution of works and expel iences are reported.

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