Quality analysis of asphalt concrete mixtures produced in Lithuania

Abstract

Analysis of quality of asphalt concrete mixtures produced in Lithuania in the period of 1965-1992 has been made. Reasons which caused deterioration of quality of asphalt concrete mixtures produced in 1991-1992 compared to mixtures produced in 1981-1990, have been analysed. The most comprehensive analysis of asphaltconcrete mixtures produced in 1991-1992 has been made: actual composition of mixtures produced at different Lithuanian road organizations, physical and mechanical indices of the mixtures have been considered, and characteristics of uniformity of these quality indices presented. On the basis of this research recommendation for standartization of asphalt concrete mixtures quality indices have been given. They will be used for standartization of requirements for asphalt concrete in Lithuania.