Լաբորատոր պայմաններում բազալտե թելիկների չափերի օպտիմալ որոշումն ասֆալտբետոնե խառնուրդներում

Abstract

Asphalt concrete mixtures represent one of the fundamental components of road construction, with their physicomechanical properties playing a decisive role in determining the strength, durability, and load-bearing capacity of pavements during operation. In recent years, the incorporation of basalt fibers into the structure of asphalt concrete mixtures has been recognized as an effective approach aimed at enhancing their mechanical and crack-resistant properties. The present study is based on the use of natural basalt raw materials available within the territory of the Republic of Armenia, which were utilized throughout the entire process of fiber production and mixture preparation under local conditions. This aspect represents the main feature of the innovative approach, enabling the application of local resources in the production of high-value construction materials. During laboratory testing, asphalt concrete mixture samples containing basalt fibers of various lengths (5 mm, 10 mm, and 20 mm) were examined to determine the optimal fiber dimensions and their influence on the strength and crack resistance of the mixtures. The results revealed that the proper dimensional selection of fibers derived from local basalt significantly contributes to the improvement of the mechanical performance and crack resistance of asphalt concrete mixtures.