This article presents the results of a comprehensive scientific study aimed at evaluating the effects of mechanically activated natural mineral sands and other mineral ingredients on the performance characteristics of asphalt concrete compositions. Mechanical activation enhances the specific surface area of mineral particles, increases their surface energy, and improves adhesion between the mineral filler and bitumen. These effects contribute to significant improvements in strength, deformation resistance, and overall durability of asphalt concrete road pavements. The study highlights the relevance of using local and secondary raw materials to develop advanced asphalt concrete formulations suitable for harsh climatic conditions.

Influence of adsorption additives, tar concrete, bituminous mastics, physical-mechanical properties, heat resistance, composition, fillers, river and dune sands, mechanical activation of ingredients, shear resistance, crack resistance, workability, durability, asphalt concrete compositions, specific surface area.

References

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Negmatov S.S., Sobirov B.B., Abdullaev A.X., Rahmonov B.Sh., Inoyatov K.M., Salimsakov Y.A. Modified Bitumen Compositions for Multifunctional Applications. Tashkent: Fan va Tarakkiyot, 2012.

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Sayibjan Negmatov, Kakhramon Inoyatov, et al. Technologies for Obtaining Mechanically Activated Powder Based on Natural Ingredients and Dune Sand. PPM 2013 Symposium, Izmir, Turkey.