Research of Bitumen-Mineral Mixture Applied for Patching Repair of Road Pavements Using Jet-Injection Method
Physical and mechanical properties of a bitumen-mineral mixture (strength, water saturation, compaction factor) are established for patching repair of road pavements of a non-rigidtype with the use of jet-injection method. On the basis of obtained results of the laboratory studies with the use of a full factorial analysis, an analytical dependence of influence of technologicalmodes of stacking of the mixture when laying it in a pothole under different technological regimes and different volume of the mixture in the percent for the content of bitumenemulsion has been established. It is shown that the obtained value of water saturation of the material corresponds to the normative values of GOST 9128-2009 only with 10%-contentof the emulsion by volume and an average feed rate of 30 m/s. It is proven that for increasing the service life of the repaired surface of road pavements, there is a need for additionalcompaction of the mixture in the pothole with tamping machines.