Introduction. Pavement of cast emulsion-mineral mixtures is arranged for improving the riding qualities of the road, as well as maintaining them at an appropriate level.
Problem Statement. Constant increase of transport load on the motor roads leads to premature wear and reduce the time of their repair. The lack of financial resources to carry out timely repair makes it difficult to maintain riding quality of roads in proper condition. Therefore, finding new opportunities to prevent this situation is an urgent issue for the road industry. The world experience of application of technology of thin-layer pavement arrangement (in Ukraine ― «protective wear layers») with cast emulsion-mineral mixtures has shown its effectiveness and efficiency due to which they achieve the necessary indicators of adhesion, roughness and evenness and extension of terms of highway overhauls. Currently, in Ukraine, the requirements for these mixtures are established according to SOU 42.1‑37641918-119: 2014 «Cast emulsion-mineral mixtures. Specifications» and DSTU-N B.V.2.3‑38:2016 «Guidelines for the arrangement of protective wear layers of highways pavement». At the same time, the issue of design of such mixtures and requirements to the components is still insufficiently studied, in particular, the issue of using the stone materials that do not meet the requirements of this technology, non-compliance with the amount of binder (its surplus or shortage) and others. So, the primary task is to find solutions to these issues.
The purpose. To carry out the analysis of European and domestic experience of using the cast emulsion-mineral mixtures in road construction for further using the obtained data to improve the quality and durability of road pavements.
Materials and methods. Performance of comparative analysis of domestic and European literature sources, regulations on requirements to cast emulsion-mineral mixtures and experience of their arrangement on roads.
Results. Analytical review and comparative analysis of requirements for cast emulsion-mineral mixtures for the arrangement of wear layers of road pavement were carried out.
Conclusions. During the comparative analysis of requirements for cast emulsion-mineral mixtures it was established that it is necessary to conduct detailed studies with laboratory tests and to develop proposals for revision of domestic requirements for cast emulsion-mineral mixtures (CEMM (ЛЕМС-ukr)) in terms of mix design, thickness of protective wear layers from them, requirements for acceptance of works and quality control. It is also necessary to harmonize the European standard for determining the roughness of the road pavement.