English
Русский 5-16 p.
The article proposes a promising technology for designing asphalt mixes based on the method of "irregular packing" of figures of different sizes and shapes. The calculation has been improved and adapted to deter-mine the bulk density of asphalt concrete depending on the content of bituminous binder. A detailed algorithm for designing asphalt mixes based on the "irregular packing" method is described. MS Excel spreadsheets have been created with calculation formulas for converting the grain composition of the mineral part of the asphalt concrete mixture, the content of bituminous binder by volume and recalculating the bulk density of asphalt concrete, the content of air voids, voids in the mineral aggregate and voids filled with bituminous binder. In order to justify the application of the "irregular packing" method of figures of different sizes and shapes in determining the bulk density of asphalt concrete, the results of the calculated data were compared with laboratory tests of control samples during the preparation of ShMA-16 and A 16Vn asphalt concrete mixes at the plant, as well as cores taken from the coating on highway. As a result of the comparison, it was found that the discrepancy between the obtained experimental and calculated values in terms of bulk density does not exceed 0.02 g/cm3, and in terms of the content of bituminous binder, less than 0.2%.
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2. ASTM D 5581. Standard Test Method for Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus. 2001.
3. Radovsky B.S. Methods of designing the composition of asphalt concrete mixtures in the USA. Railway Engineering, 2006. P. 68 – 81. (rus.)
4. Radovsky B.S. Designing the composition of asphalt concrete mixtures by the Superpave method. Railway Engineering, 2007. P. 86 – 99. (rus.)
5. Mallick R.B. et al. Evaluation of Factors Affecting Permeability of Superpave Designed Pavements. National Center for Asphalt Technology, Report 03.02, June 2003.
6. D‘Angelo J., Kluttz R., Dongre R., Stephens K., Zanzotto L. Revision of the Superpave high temperature binder specification: the Multiple Stress Creep Recovery Test. Journal of the Association of Asphalt Paving Technologists. 2007. 76. P. 123 – 162.
7. Hefer A.W., Little D.N., Lytton R.L. A Synthesis of Theories and Mechanisms of Bitumen-Aggregate Adhesion Including Recent Advances in Quantifying the Effects of Water. Journal of the Association of Asphalt Paving Technologists. 2005. 74. P. 1 – 56.
8. Huber G.A., Corte J.F., Laglois P. The effect of mix design technology on he rutting characteristics of asphalt pavements: Ninth International Conference on Asphalt Pavements, August 17-22, 2002. Denmark, 2002.
9. Pecheni B.G., Danilian E.A., Nikolov A.D. Effects of methods of produ-ction of sphalt concrete mixes on the properties of asphalt concrete. 5 International Conference Bituminous Mixtures and Pavements. Thessaloniki, Greece, 1-3 June, 2011. P. 730 – 737.
10. Golubev A.S., Zvyagin M.Yu., Samoylova L.I., Kupriyanov A.A. Irregular packages of figures of different sizes and shapes. Collection of works of FREME, Vladimir State University. Vladimir: Publishing House of Volga, 2016. P. 289 – 293. (rus.)
11. Golubev A.S., Zvyagin M.Yu., Prokoshev V.G., Samoilova L.I. Irregular packing of figures of different sizes and shapes. Proceedings of Universities: Collection of works No. 5 Ivan. State Polytechnic University. Ivanovo: Publishing House of ISPU, 2016. P. 225 – 231. (rus.)
12. Samoylova L.I., Varzin E.I. New technology for designing the composition of asphalt concrete mixture. Intern. scientific conference MPCPE: International Conference on Materials Physics, Building Structures and Technologies in Construction, Industrial and Production Engineering. 2021. (rus.)
13. Vikhrev A.V., Provatorova G.V., Semekhin E.F., Varzin E.I. Ways to improve the quality of organomineral mixtures. Intern. scientific conference SPbWOSCE: Energy efficiency and Sustainable Development in Civil Engineering. 2017. (rus.)
Varzin E.I., Samoilova L.I. Designing the composition of asphalt concrete by the calculation method. Construction Materials and Products. 2022. 5 (3). P. 5 – 16. https://doi.org/10.58224/2618-7183-2022-5-3-5-16