1. JCCT
  2. Ch&ChT Vol. 19, No. 1, 2025
  3. A Review of Road Bitumen Modification Methods. Part 2 - Chemical Modification

A Review of Road Bitumen Modification Methods. Part 2 - Chemical Modification

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Ananiy Kohut1, Olha Poliak1, Iurii Sidun1, Olena Astakhova1, Artur Onyshchenko2, Khrystyna Besaha1, Volodymyr Gunka1
Affiliation: 
1 Lviv Polytechnic National University, 12 S.Bandery St., 79013 Lviv, Ukraine 2National transport university, 1 Mykhailа Omelianovycha - Pavlenka St., 01010 Kyiv, Ukraine volodymyr.m.hunka@lpnu.ua
DOI: 
https://doi.org/
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Keywords: 
bitumen
chemical modification
sulfur
polyphosphoric acid
maleic anhydride
thermosets
formaldehyde
Abstract: 
A literature review of modern chemical methods for modifying road bitumen has been conducted, focusing on their popularity and the nature of their impact on binder properties. Sulfur, polyphosphoric acid, maleic anhydride, thermosetting resins (such as phenol-formaldehyde, epoxy, polyester, etc.), and polymers are the most commonly used chemical modifiers in road construction practices. The method of producing bituminous materials with varying penetration levels through the chemical modification of oil residues with formaldehyde has been considered. All bituminous materials produced via chemical modification demonstrate better homogeneity during high-temperature storage compared to those modified through physical methods due to the chemical interaction between a reactive modifier and bitumen. It has also been shown that chemical modifiers are often used in combination with physical modifiers to enhance their effectiveness.
References: 

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