Received 18.12.2025
Revised 06.01.2026
Accepted 26.03.2026
Published 07.04.2026
Retrieved from Iss. 119, 2026
Pages 273 -284
Abstract
The article systematizes the results of laboratory tests of the VELETON™ “AVE18” polymer additive for the modification of bitumens and asphalt concrete mixes. Based on test reports (National Transport University, Kyiv; JSC “KazDorNDI”; SE “Center of Quality”, Astana), key performance indicators of polymer-modified asphalts are summarized: increased strength (R₀, R₂₀ up to 6 MPa; R₅₀ up to 2.4 MPa) and markedly improved rutting resistance—rut depth of ~1.2–1.4 mm after 20,000 passes in the Hamburg wheel tracking test (limit ≤3 mm). It is shown that AVE18 is an effective alternative to latexes and SBS-polymer systems: it requires a lower bitumen modification temperature (175–180 °C) and a shorter time to obtain a stable modified binder (2–4 h), exhibits a short thermal stabilization period (~30 min), and has reduced susceptibility to phase separation. Technological advantages for asphalt plants are outlined (no colloid mill required; typical dosage 2%), along with the mechanism of action (adhesive thermoplastic elastomers that enhance the viscoelastic properties of the binder) and compliance with DSTU 8959:2019, ST RK 1223:2019, and ST RK 2373:2019. Practical recommendations are provided for dosage and quality control of the modified binder. An economic effect is estimated: due to lower polymer consumption, reduced energy use, and higher productivity, AVE18 makes bitumen modification more cost-effective. The feasibility of wide implementation of AVE18 to extend pavement service life is substantiated, and avenues for further research and application are outlined
Keywords:
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