DETERMINATION OF THE ECONOMIC EFFICIENCY OF USING ASPHALT POLYMER CONCRETE WITH A HIGH CONTENT OF POLYMER
Journal Title: Вестник Харьковского национального автомобильно-дорожного университета - Year 2019, Vol 84, Issue
Abstract
The issue of choosing the most effective method of asphalt concrete modification is relevant because the cost of asphalt concrete mixtures obtained in different ways will be significantly different. Furthermore, the required physicochemical properties of asphalt concrete and its durability must be taken into account. The goal of the work was to calculate the techno-economic efficiency of using different amounts of polymer modifier in response to chang-ing the elastic properties of asphalt polymer con-crete in road pavement structure design. The calcu-lation of the techno-economic efficiency of using asphalt polymer concrete mixture with the use of SBS polymer was carried out by the modified re-duced cost method of Prof. V.A. Verenko with the addition of road pavement calculations. On the ba-sis of calculations of techno-economic efficiency of using modifiers, it was determined that the rising costs of such mixtures doesn’t compensate for an increase of pavement service life. However, due to the possibility of layer thickness reduction, the use of asphalt concrete mixture with 5% polymer modi-fier is economically feasible. The scientific novelty of the work is that the method proposes to consider the cost of asphalt concrete in the top layer according to its thickness instead of the cost of asphalt concrete mixture. Such method is based on the analysis of the influence of bitumen polymer modifier content on the features of road pavement structure. In the asphalt concrete production, the use of poly-mer modifier in the amount of 5% of bitumen mass leads to improvement of physical-mechanical prop-erties, to increased durability of this material and reduced layer thickness of road pavement by 28 %, that is, to resource economy.
Authors and Affiliations
V. Maliar
Keywords
Related Articles
- EP ID EP550859
- DOI 10.30977/BUL.2219-5548.2019.84.0.37
- Views 112
- Downloads 0
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