About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Vdovin Evgeny Anatolyevich, candidate of technical sciences, associate professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Bulanov Pavel Efimovich, candidate of technical sciences, senior lecturer, Kazan State University of Architecture and Engineering, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Zhuravlev Igor Vyacheslavovich, engineer of the production and technical department of Volgadorstroy LLC, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it |
| Title of the article | The effect of cellulose stabilizing additives on the physical and mechanical characteristics of bitumen |
| Abstract. | The aim of the work is to study granular stabilizing additives with different cellulose content on the physical and mechanical characteristics of bitumen. The relevance of the study is related to the trend of increasing traffic intensity of motor transport in the Russian Federation. As a result, there is an increase in requirements for the inter-repair terms of highways, for environmental safety. Compliance with these requirements is facilitated by the use of crushed stone-mastic asphalt concrete with stabilizing additives that are more resistant to increasing loads. Results. Modification of bitumen with a stabilizing additive (containing cellulose and wax fibers – 60% and 40%, respectively) in an amount of 2% and 4% increases the following physical and mechanical characteristics: softening temperature along the ring and ball by 7.36% and 26.18%; needle penetration depth at 25 оС – 6.25% and 12.5%; extensibility at 0 °C – 105.24% and 74.33%, respectively. Modification of bitumen with a stabilizing additive (containing cellulose and wax fibers – 20% and 80%, respectively) in an amount of 2% and 4% increases the softening temperature along the ring and ball by 22.29% and 59.10 %; reduces the penetration depth of the needle at 25 °C – 10.34% and 5.49%; increases the extensibility at 0 °C – 110.35% and 9.27%, respectively. Conclusions. The regularities of the influence of stabilizing additives with different content of cellulose and wax fibers on the physical and technical characteristics of bitumen are revealed. |
| Keywords. | bitumen, crushed-mastic asphalt concrete, stabilizing additive, cellulose, physical and mechanical characteristics |
| For citations: | E.A. Vdovin, P.E. Bulanov, I.V. Zhuravlev. The effect of cellulose stabilizing additives on the physical and mechanical characteristics of bitumen//News KSUAE 2022 №3 (61), p. 103-109, DOI: 10.52409/20731523_2022_3_103, EDN: HOAOTX |
