00672naa#a2200193#i#450# EN\\bibl\98653 20250907185848.7 3034-4689 20250801b2025####ek#y0engy0150####ca RU INVESTIGATION OF THE PROPERTIES OF POLYMER-MODIFIED BITUMENS BASED ON NON-OXIDIZED RESIDUAL PETROLEUM RAW MATERIALS USING THE PERFORMANCE GRADE METHOD Journal article Kazan Kazan National Research Technological University 2025 6 с. Journal article local Ahmetzyanov Rustam Ruslanovich Kemalov A. F. Dodoev K. I. Kemalov R. A. vestniktu.ru