Abstract
Asphalt concrete is a complex composite material. To adequately simulate milling, some rather complex and interrelated processes should be investigated. This paper presents results of theoretical and practical research which reflect specific aspects of how cutting chips form during milling. The geometry of this process determines the productivity of the equipment, the cutting forces, and the specific energy input per unit of material removed. The paper presents the results of theoretical analysis of geometrical indices of cutted chip cross-section, the method of experiments, and experimental results of cutting sandy and granular asphalt concrete grades by a single cutting element with a cylindrical carbide tip. Analysis of research results of geometrical parameters of cut asphalt concrete chips by cutting element with cylindrical carbide tip showed that angles of bevel in the formed grooves do not depend on asphalt concrete grade and are constant. It has been experimentally established that the bevel angle of the grooves should correspond to 77.6°. The results of the conducted work are also important for geometrical modeling of asphalt concrete cutting by different types of milling units. It is possible to identify new, economically feasible, operation modes of equipment, as well as rational design and technological parameters of machines. This will allow you to optimize the basic parameters of the equipment.
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Furmanov, D.V., Lysakov, N.E., Shamahov, L.M. (2021). Experimental Justification of Geometrical Model of Cut Chip Cross-Section during Asphalt Milling. In: Klyuev, S.V., Klyuev, A.V., Vatin, N.I. (eds) Innovations and Technologies in Construction. BUILDINTECH BIT 2021. Lecture Notes in Civil Engineering, vol 151. Springer, Cham. https://doi.org/10.1007/978-3-030-72910-3_43
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DOI: https://doi.org/10.1007/978-3-030-72910-3_43
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