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In Romania, the European technical standards concerning the quality control of the primary materials and asphalt mixtures used in road and highway works have been harmonized. In the same time, Romanian norms were adopted. These norms set limits within which every characteristic must range, without the possibility of adopting other values, even if laboratory tests prove, in many cases, that the imposed limits do not correspond to the practical reality. Also, most Romanian road laboratories own automatic Marshall eq...

The determination of bitumen dosages for asphalt mixtures using empirical or semi-empirical methods (the specific surface method being the most well-known) no longer meets national or international technical standards. Most countries require the use of methods for determining the optimum binder content by laboratory tests grouped, usually, on several levels according to the Marshall or Superpave mix design. Romanian technical standards in this field are European and national standards, which unequivocally impose w...