Samenvatting
In the winterseason 81/82 a number of colloquies were held. Six lectures are brought together in this volume, two in French, four in German. The lectures are all about road construction: Repair and enlargement of concrete roads; The testing of deformation of bituminous mixtures; Auscultation of the anti-skid quality of the road surfaces in Belgium; Development and efficiency of safety-fences and -drums; Industrial management in the road administration in Kärnten; International development tendencies to preserve the quality of roads and bridges.