Experiences from Construction of Concrete Motorways in Poland

During last years more than hundred kilometres of concrete motorways at the southwest part of Poland were modernised and newly constructed. In the frame of modernisation the old existing concrete pavements, constructed in 30's of last century, were broken-up and the crushed concrete was re-used in new concrete pavement. Newly designed and constructed pavement structures are presented in the article. Two experimental sections in the frame of regular works on new sections were constructed: one with continuously reinforced concrete slab and another with thick concrete slab on unbound aggregate sub-base. The regular concrete investigation programme consisting of non-destructive tests and deflection measurements has been currently implemented.