Preparation Process and Performance Evaluation of Terminal Blend Composite-modified Asphalt

Abstract

To explore the best preparation process for terminal blend (TB) composite-modified asphalt and to filter its formulation with excellent performance, this study evaluates the performance of TB composite-modified asphalt by physical property index, microscopic morphology, rheological testing, and infrared spectroscopy on multiple scales. The results show that the best preparation process for TB-modified asphalt is stirring at 260 °C for 4 h at 400 rpm, which significantly reduces the modification time of the asphalt. From a physical property viewpoint, the TB composite-modified asphalt sample with 5% styrene–lbutadiene–lstyrene (SBS) + 1% aromatics + 0.1% sulfur exhibits high-comprehensive, high- and low-temperature properties. Moreover, its crosslinked mesh structure comprises black rubber particles uniformly interwoven in the middle, which further enhances the performance of the asphalt and results in an excellent performance formulation. In addition, the sample with 5% SBS content has a higher G* value and smaller δ value than that with 3% SBS content, indicating that its high-temperature resistance is improved. The effect of adding 3% SBS content on the viscoelastic ratio is, to some extent, less than that caused by 20% rubber powder.

Keywords

road engineering / terminal blend / rubberized asphalt / preparation process / modification mechanism

References

[1] Ghowsi M, Jamshidi M. Recycling Waste Nitrile Rubber (NBR) and Improving Mechanical Properties of Re-vulcanized Rubber by An Efficient Chemo-mechanical Devulcanization[J]. Advanced Industrial and Engineering Polymer Research, 2023, 6(3): 255-264

[2] Cao L, Chen Y, Li A, et al.. Flue Gas Composition of Waste Rubber Modified Asphalt (WRMA) and Effect of Deodorants on Hazardous Constituents and WRMA[J]. Journal of Hazardous Materials, 2021, 403: 123 814

[3] Liu Z, Wang Z. Development of Terminal Blend Rubber and SBS Modified Asphalt: A Case Study[J]. Construction and Building Materials, 2022, 334: 127 459

[4] Lee S, Yun Y, Le T. Influence of Performance-graded Binders on Enhancing Asphalt Mixture Performance with Epoxy Resin and Crumb Rubber Powder[J]. Case Studies in Construction Materials, 2023, 19: e02 628

[5] Han L, Zheng M, Wang C. Current Status and Development of Terminal Blend Tyre Rubber Modified Asphalt[J]. Construction and Building Materials, 2016, 128: 399-409

[6] Liu Q, Liu J, Yu B, Zhang J, et al.. Preparation and Investigation on Terminal Blend Asphalt Binders with High Content of Activated Crumb Rubber[J]. Journal of Pavement Engineering, 2023, 24: 2 020 271

[7] Wang S, Huang W. Investigation of Aging Behavior of Terminal Blend Rubberized Asphalt with SBS Polymer[J]. Construction and Building Materials, 2021, 267: 120 870

[8] Attia M, Abdelrahman M. Enhancing the Performance of Crumb Rubber-modified Binders Through Varying the Interaction Conditions[J]. International Journal of Pavement Engineering, 2009, 10(6): 423-434

[9] Xie J, Zhao X, Zhang Y, et al.. Preparation of Terminal Blend/Grafting Activated Crumb Rubber Composite Modified Asphalt Based on Response Surface Methodology[J]. Frontiers in Materials, 2023, 10: 1 193 225

[10] Tang N, Lv Q, Huang W, et al.. Chemical and Rheological Evaluation of Aging Characteristics of Terminal Blend Rubberized Asphalt Binder [J]. Construction and Building Materials, 2019, 205: 87-96

[11] Li B, Huang W, Tang N, et al.. Evolution of Components Distribution and Its Effect on Low Temperature Properties of Terminal Blend Rubberized Asphalt Binder[J]. Construction and Building Materials, 2017, 136: 598-608

[12] Zhang F, Hu C, Zhang Y, et al.. Influence of Montmorillonite on Ageing Resistance of Styrene-ethylene/Butylene-tyrene-modified Asphalt [J]. Journal of Thermal Analysis and Calorimetry, 2018, 133: 893-905

[13] Zanzotto L, Kennepohl G. Development of Rubber and Asphalt Binders by Depolymerization and Devulcanization of Scrap Tires in Asphalt[J]. Transportation Research Record, 1996, 1530(151-58

[14] Wang S, Huang W, Liu X, et al.. Influence of SBS on The Aging Properties of High-content Terminal Blend Rubber Modified Asphalt[J]. Journal of Materials in Civil Engineering, 2023, 35: 04 023 260

[15] Wang S, Huang W, Lin P, et al.. Chemical, Physical, and Rheological Evaluation of Aging Behaviors of Terminal Blend Rubberized Asphalt Binder[J]. Journal of Materials in Civil Engineering, 2021, 33: 04 021 302

[16] Qian C, Fan W. Evaluation and Characterization of Properties of Rrumb Rubber/SBS Modified Asphalt[J]. Materials Chemistry and Physics, 2020, 253: 123 319

[17] Huang Q, Qian Z, Zhang M, et al.. Experimental Investigation of the Road Performance of Terminal Blend Rubber Asphalt Mixture with Different Dry-way Additives[J]. IOP Conference Series Materials Science and Engineering, 2019, 629: 012 006

RIGHTS & PERMISSIONS

Wuhan University of Technology and Springer-Verlag GmbH Germany, Part of Springer Nature