Swelled Mechanism of Crumb Rubber and Technical Properties of Crumb Rubber Modified Bitumen

Crumb rubber modified bitumen (CRMB) has excellent high-temperature performance and fatigue resistance, and is widely used in asphalt pavement to cope with increasing traffic axle load and changing climate. Under conventional preparation conditions, the swelling degree of CR can directly impact the comprehensive properties of CRMB; however, physical and chemical properties research on swelling crumb rubber (SCR) and crumb rubber recycled bitumen (CRRB) in CRMB is relatively lacking. In this paper, the working performance of CRMB and CRRB in high-temperature and low-temperature conditions were studied through physical and working performance testing of bitumen. The CR and SCR were tested by scanning electron microscope (SEM), Fourier transform infrared spectrometer (FTIR), gel permeation chromatography (GPC), and particle size distribution (PSD) tests to study the physicochemical behavior and microscopic effects before and after CR swelling. The results showed that CR dosage was in the range of 10%, 15%, and 20%, as well as that CR dosages have a positive effect on the high- and low-temperature performance, storage stability, and elastic recovery of bitumen. The high-temperature PG grades of bitumen were directly improved by four grades, and the elastic recovery rate increased by 339.9%. CR improved the ultra-low temperature crack resistance of bitumen. Due to the absorption of lighter components by CR, the relative content of the heavy component of bitumen increased; however, its low-temperature performance decreased significantly. After swelling, the CR particle size increased and the range became wider, the surface complexity of CR became higher, and the specific surface area was larger. At the same time, CR carried out the transformation process from large and medium molecules to small molecules. During the swelling process, a new benzene ring structure appeared in the CR, and the C–C bond and C–S bond of CR broke, forming part of the C=C bond.

[1]  Shaopeng Wu,et al.  Microwave heating mechanism and self-healing performance of asphalt mixture with basalt and limestone aggregates , 2022, Construction and Building Materials.

[2]  Shaopeng Wu,et al.  Microwave heating mechanism and Self-healing performance of scrap tire pyrolysis carbon black modified bitumen , 2022, Construction and Building Materials.

[3]  Tengyu Ma,et al.  Performances of rubber asphalt with middle/high content of waste tire crumb rubber , 2022, Construction and Building Materials.

[4]  S. Erkens,et al.  Influence of swelling-degradation degree on rheological properties, thermal pyrolysis kinetics, and emission components of waste crumb rubber modified bitumen , 2022, Construction and Building Materials.

[5]  M. Liang,et al.  The Effects of Activation Treatments for Crumb Rubber on the Compatibility and Mechanical Performance of Modified Asphalt Binder and Mixture by the Dry Method , 2022, Frontiers in Materials.

[6]  Xueyan Liu,et al.  Influence of high content crumb rubber and different preparation methods on properties of asphalt under different aging conditions: Chemical properties, rheological properties, and fatigue performance , 2022, Construction and Building Materials.

[7]  C. Shu,et al.  Stability improvement technology of SBS/crumb rubber composite modified asphalt from Xinjiang China , 2022, Journal of Cleaner Production.

[8]  Shaopeng Wu,et al.  Harmless treatment and environmentally friendly application of waste tires—TPCB/TPO composite-modified bitumen , 2022, Construction and Building Materials.

[9]  N. Thom,et al.  Characterisation of fatigue damage in asphalt mixtures using X-ray computed tomography , 2022, Road Materials and Pavement Design.

[10]  Shaopeng Wu,et al.  Mechanism and Performance of Bituminous Mixture Using 100% Content RAP with Bio-Rejuvenated Additive (BRA) , 2022, Materials.

[11]  Li Liu,et al.  Effect of the binary compound method of TOR promoting dissolution and NaOH solution surface treatment on the performance of rubber asphalt , 2021, Construction and Building Materials.

[12]  Hainian Wang,et al.  A review on compatibility between crumb rubber and asphalt binder , 2021 .

[13]  S. A. Biancardo,et al.  Verifying laboratory measurement of the performance of hot asphalt mastics containing plastic waste , 2021 .

[14]  S. Amirkhanian,et al.  Surface activation of scrap tire crumb rubber to improve compatibility of rubberized asphalt , 2021 .

[15]  Yu Zheng,et al.  Performance-Guided Design of Permeable Asphalt Concrete with Modified Asphalt Binder Using Crumb Rubber and SBS Modifier for Sponge Cities , 2021, Materials.

[16]  Guoqiang Sun,et al.  Understanding the role of waste cooking oil residue during the preparation of rubber asphalt , 2020 .

[17]  Guoqiang Sun,et al.  Rubber asphalt modified with waste cooking oil residue: Optimized preparation, rheological property, storage stability and aging characteristic , 2020 .

[18]  Henglong Zhang,et al.  Effect of catalytic-reactive rejuvenator on structure and properties of aged SBS modified asphalt binders , 2020, Construction and Building Materials.

[19]  S. Amirkhanian,et al.  Characterizing Compatibility of Crumb Rubber Modified Asphalt by Customized Drainage Method , 2020 .

[20]  S. Amirkhanian,et al.  Surface modification of ground tire rubber particles by cold plasma to improve compatibility in rubberised asphalt , 2020, International Journal of Pavement Engineering.

[21]  Z. Leng,et al.  Selective absorption of swelling rubber in hot and warm asphalt binder fractions , 2020 .

[22]  S. Amirkhanian,et al.  High temperature rheological characteristics of plasma-treated crumb rubber modified binders , 2020 .

[23]  A. Shen,et al.  Effect of microwave-activated crumb rubber on reaction mechanism, rheological properties, thermal stability, and released volatiles of asphalt binder , 2020 .

[24]  M. Saeb,et al.  Investigating the Impact of Curing System on Structure-Property Relationship of Natural Rubber Modified with Brewery By-Product and Ground Tire Rubber , 2020, Polymers.

[25]  Weiyu Fan,et al.  Influence of crumb rubber particle size and SBS structure on properties of CR/SBS composite modified asphalt , 2020 .

[26]  Shengjie Liu,et al.  Analysis of the performance and mechanism of desulfurized rubber and low‐density polyethylene compound‐modified asphalt , 2019, Journal of Applied Polymer Science.

[27]  Songtao Lv,et al.  Investigation on Rheological Properties and Storage Stability of Modified Asphalt Based on the Grafting Activation of Crumb Rubber , 2019, Polymers.

[28]  Henglong Zhang,et al.  Influence of SBS Modifier on Aging Behaviors of SBS-Modified Asphalt , 2019, Journal of Materials in Civil Engineering.

[29]  S. Erkens,et al.  Numerical investigation of rubber swelling in bitumen , 2019, Construction and Building Materials.

[30]  S. Amirkhanian,et al.  Storage, fatigue and low temperature characteristics of plasma treated rubberized binders , 2019, Construction and Building Materials.

[31]  Yongchun Cheng,et al.  Mechanical Performance of Warm-Mixed Porous Asphalt Mixture with Steel Slag and Crumb-Rubber–SBS Modified Bitumen for Seasonal Frozen Regions , 2019, Materials.

[32]  Mengzhen Zhao,et al.  Characterization of crumb tire rubber lightly pyrolyzed in waste cooking oil and the properties of its modified bitumen , 2019, Construction and Building Materials.

[33]  A. Shen,et al.  Effect of process parameters on the high temperature performance and reaction mechanism of CRMA , 2018, Petroleum science and technology.

[34]  Mengzhen Zhao,et al.  Research on the pyrolysis process of crumb tire rubber in waste cooking oil , 2018, Renewable Energy.

[35]  Mengzhen Zhao,et al.  Chemical and microscopic investigation of co-pyrolysis of crumb tire rubber with waste cooking oil at mild temperature. , 2018, Waste management.

[36]  Z. Leng,et al.  Production of a sustainable paving material through chemical recycling of waste PET into crumb rubber modified asphalt , 2018 .

[37]  M. Liang,et al.  Thermo-stability and aging performance of modified asphalt with crumb rubber activated by microwave and TOR , 2017 .

[38]  Yubo Jiao,et al.  Short-Term Aging Effect on Properties of Sustainable Pavement Asphalts Modified by Waste Rubber and Diatomite , 2017 .

[39]  J. Gallego,et al.  Rubber modified binders as an alternative to cellulose fiber – SBS polymers in Stone Matrix Asphalt , 2016 .

[40]  Song Ye,et al.  Study on the Influence of Asphalt Performance for Ultraviolet Aging , 2014 .

[41]  Yongli Zhao,et al.  Thermal oxidative aging characterization of SBS modified asphalt , 2013, Journal of Wuhan University of Technology-Mater. Sci. Ed..

[42]  Liqun Zhang,et al.  Swelling process of rubber in asphalt and its effect on the structure and properties of rubber and asphalt , 2012 .

[43]  Shu-tang Liu,et al.  Analysis and application of relationships between low-temperature rheological performance parameters of asphalt binders , 2010 .

[44]  Paulo J M Monteiro,et al.  Surface characterization of recycled tire rubber to be used in cement paste matrix. , 2002, Journal of colloid and interface science.

[45]  Ludo Zanzotto,et al.  Development of Rubber and Asphalt Binders by Depolymerization and Devulcanization of Scrap Tires in Asphalt , 1996 .

[46]  Sk Faisal Kabir,et al.  Use of microbially desulfurized rubber to produce sustainable rubberized bitumen , 2021 .

[47]  Samuel H Carpenter,et al.  Mechanism of Interaction of Asphalt Cement with Crumb Rubber Modifier , 1999 .