Recycling Concrete Pavements in Motorway Construction

Paper by FRANKE from ISCR 7th 1994 Vienna Austria

Concrete, which has withstood all the loads on heavily used roads for many decades, can be used again as a concrete aggegrate in road pavement construction after undergoing appropriate treatment. The example of four pavement batches prepared by 2 different companies in 1992 and 1993 on the A27 motorway m Lower Saxony shows that it is possible to use recycled material both as sole coarse-grained material in the lower concrete layer which is not subject to very exacting treatment requirements, and as an aggregate in a single-layer concrete pavement. In the second case, however, the treatment of old concrete pavement is much more expensive.

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