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- Title
Effect of Modification of a Copolymer of Ethylene with Vinyl Acetate on the Performance of Cement and Asphalt Concrete Based on It.
- Authors
Zakieva, R.; Gussamov, I.; Gadel'shin, R.; Petrov, S.; Ibragimova, D.; Fakhrutdinov, R.
- Abstract
This work is devoted to modification of road asphalt with ethylene-vinyl acetate (EVA) copolymer. The mechanisms of change in physicochemical properties of modified asphalts and characteristics of asphalt concrete pavements based on the copolymer-modified asphalt and its content in the binder are deciphered. Modification of the organic binder with EVA copolymer improves the low-temperature and adhesion properties of the asphalt, reduces penetrability and extensibility, and raises softening temperature. Increase in content of vinyl acetate groups in the EVA copolymer from 12.5 to 28% leads to enhancement of deformation resistance and adhesion properties of the copolymer, which is reflected also in the properties of the polymer-asphalt composites. There is a marked change in the asphalt penetration: the higher the EVA concentration and the content of vinyl acetate groups in it, the lower the penetration.
- Subjects
ETHYLENE crystals; ETHYLENE; ASPHALT concrete; VINYL acetate; CONCRETE waste
- Publication
Chemistry & Technology of Fuels & Oils, 2015, Vol 51, Issue 5, p480
- ISSN
0009-3092
- Publication type
Article
- DOI
10.1007/s10553-015-0628-3