| Title: |
Structural and Rheological Principles of Formation of Stable Bituminous Sealants with Polymer-Fiber Reinforcement |
| Authors: |
Gulbarshin K. Shambilova; Saule Bukanova; Zhanar Kadasheva; Nagima Karabassova; Mikhail S. Kuzin; Igor V. Gumennyi; Ivan Yu. Skvortsov; Igor S. Makarov |
| Source: |
Infrastructures ; Volume 11 ; Issue 3 ; Pages: 104 |
| Publisher Information: |
Multidisciplinary Digital Publishing Institute |
| Publication Year: |
2026 |
| Collection: |
MDPI Open Access Publishing |
| Subject Terms: |
polymer modified bitumen; rheology; cellulose fiber; FTIR spectra; composites; adhesion |
| Description: |
The development of durable road sealing materials capable of maintaining performance under combined mechanical and climatic loads remains a critical challenge for modern infrastructure. Conventional bitumen-based sealants exhibit limited resistance to high-temperature deformation, cracking, and adhesion degradation, leading to reduced service life. This study proposes a rheology-oriented approach to the design of polymer-reinforced bituminous sealants based on penetration-grade bitumen 50/70 and 70/100 modified with styrene–butadiene–styrene (SBS) copolymers up to 9 wt.% and reinforced with cellulose fibers. The rheological behavior of the developed composites was investigated using dynamic shear rheometry to determine the complex shear modulus (G*), phase angle (δ), and temperature–frequency dependencies in the range from −20 to +90 °C, while infrared spectroscopy was employed to assess intermolecular interactions. Adhesion performance was evaluated at different temperature. The modified systems demonstrated a 5–10-fold increase in G*/sinδ enhanced high-temperature stability, and improved adhesion and crack resistance compared to base bitumen. Based on the obtained rheological and performance indicators, the developed composition was approved for subsequent pilot-scale testing and field validation as a promising road sealing material. |
| Document Type: |
text |
| File Description: |
application/pdf |
| Language: |
English |
| Relation: |
https://dx.doi.org/10.3390/infrastructures11030104 |
| DOI: |
10.3390/infrastructures11030104 |
| Availability: |
https://doi.org/10.3390/infrastructures11030104 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.1528F229 |
| Database: |
BASE |