Semi-finished products and processing stages: an introduction to the standardisation scope for a new class of road construction materials

The paper presents research data corresponding to the curriculum for the academic program ‘Design and Construction of Roads, Underground Railways, Aerodromes, Bridges and Transport Tunnels’. The authors have examined issues relating to the organisation of production, mechanisation and automation of technological processes at manufacturing enterprises that supply materials, semi-finished products and finished goods for the construction, reconstruction and operation of transport infrastructure, and describe the specific features of producing functionally stable road pavements and semi-finished products suitable for long-term storage. The paper demonstrates that composite road mixes and semi-finished products suitable for long-term storage open up broad opportunities for the development of a new class of materials capable of ensuring a longer service life. This class of materials does not apply to the technical regulations of the Customs Union ‘Road Safety’. The paper provides examples of such composite road pavements and semi finished products. The authors introduce a new concept – trigger material, i.e. a material possessing two or more phase states of stable equilibrium and capable of transitioning from one state to another upon the application of a corresponding binary stimulus (trigger).