Introduction. Stone mastic asphalt mixtures are probably the most popular road construction material for paving roads not only in Ukraine but also around the world. State construction standards provide for the mandatory use of SMA mixtures for paving roads of category I, and it is also possible to use SMA mixtures for paving roads of II – III categories.
Problem Statement. For the first time, the properties of SMA mixtures, as well as stone mastic asphalt concrete, were standardized in DSTU B V.2.7-127 in 2016. Since then, two amendments to this standard have been developed (2012 and 2014), its revision has been carried out (2015), an amendment to the revised standard has been developed (2019) and another revision is currently underway. Thus, we can conclude that there is a significant interest in these road construction materials. In 2018, as part of its European integration efforts, Ukraine adopted DSTU EN 13108-5 which sets harmonized requirements for SMA mixtures and SMA used in the European Union. However, this standard has not yet been implemented in Ukraine, which is due to the lack of specific requirements for SMA mixtures, SMA, as well as their components depending on the field of application. In the literature sources, it is almost impossible to find information on the establishment of requirements for SMA mixtures and SMA, as well as their components during the development of DSTU B V.2.7-127 with regard to climatic conditions and traffic load, which is obviously due to the significant affinity of this standard with the Soviet one. Therefore, to be able to establish national requirements for SMA mixtures and SMA in accordance with DSTU EN 13108-5, it is advisable to perform a detailed analysis of the literature sources on this issue.
Purpose. To establish national requirements for stone mastic mixtures in accordance with DSTU EN 13108-5.
Materials and methods. Analysis of literature sources on the composition, components, design, and properties of SMA mixtures and SMA.
Results. The literature sources on the composition, components, design, and properties of SMA mixtures and SMA were analyzed. The European approaches to the composition, components, design, and properties of SMA mixtures and SMA were compared with the relevant Ukrainian approaches.
Conclusions. An important role in the operational reliability and durability of stone mastic asphalt concrete is played by the properties of the components, as well as the ratio between aggregate and bituminous binder. In European countries, the greatest attention is paid to the grading of mixtures, the creation of a framework of coarse aggregates, the ratio between mineral aggregates and bituminous binder, as well as the determination of the physical properties of asphalt concrete. Additionally, for roads of higher categories with heavy traffic flow, the design of the stone mastic asphalt mixture can be specified based on the results of determining rutting resistance, crack resistance, and dynamic tests.
