Structure formation of dispersion hardened organomineral mixtures

The relevance of the work is determined by the need to improve the properties of the road pavement layers. Under conditions of increasing carrying capacity of vehicles and traffic intensity, pavements designed and constructed in accordance with the regulatory documents are destroyed without reaching the required service life. The pavement reinforcement with chemical fibers is one of the ways to solve this problem. The aim of this work is to study the structure formation of dispersion reinforcement of the pavement layers made of organomineral mixtures. Theoretical calculations are presented for the structural formation with directional reinforcement by using meshes and interlayers with dispersed reinforcement. It is shown that directional reinforcement of the structural layers provides compensation of tensile stresses only at the bottom layer, where the mesh locates. At the edges of the deflection bowl in the upper layer, tensile stresses are not compensated because the reinforcing mesh locates at the bottom layer. With dispersed reinforcement, chemical fiber penetrates in the structural layer, including its top and perceive tensile loads and reduce the likelihood of cracking. The implementation of the liquidphase method of dispersed reinforcement of organomineral mixtures improves the bitumen adhesion to the fiber surface of the dispersed reinforcement.

pavement layer, subgrade, dispersed reinforcement, chemical fiber, bitumen adhesion, reinforcing fibers, adsorption solvation layer

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