Evaluation of Fume Suppression, Viscosity-Retarding, and Rheological Properties of Eco-Friendly High-Viscosity Modified Asphalt
Source abstract
Abstract
In order to address the issues of high viscosity and excessive fume exhaust associated with high-viscosity modified asphalt (HVMA), the objective of this study was to develop an eco-friendly HVMA by incorporating fume suppressants and viscosity-retarding agents (VRAs). To begin with, desulfurization rubber powder (DRP) was utilized as a modifier, and fume suppressants, including activated carbon, a chemical reaction fume suppressant, and a composite fume suppressant combining activated carbon and chemical reaction fume suppressant were added to the HVMA separately. The fume suppression effect and odor level were observed to determine the optimal fume suppressant composition for this study. Based on these observations, an area integration method was proposed, utilizing rotational viscosity testing and temperature sweeping experiments, evaluating the viscosity-retarding effect and mixing temperature when different amounts of Sasobit VRA, Evotherm3G VRA, and a composite VRA of Sasobit and Evotherm3G were added to the HVMA. This approach aimed to identify the eco-friendly HVMA with the most effective fume suppression and viscosity-retarding abilities. Furthermore, the morphology and rheological properties of the eco-friendly HVMA were examined through fluorescence microscopy, zero shear viscosity test, multiple stress creep recovery analysis, liner amplitude sweep test, and frequency sweep test. The results demonstrated that the HVMA formulation consisting of 15% DRP and 1% composite fume suppressant exhibited a satisfactory fume suppression effect and odor level. Based on this, the HVMA formulation containing 0.6% Evotherm3G and 3% Sasobit VRAs displayed the best viscosity-retarding effect while reducing the mixing temperature. Moreover, when compared to common HVMA, the eco-friendly HVMA exhibited excellent high-temperature resistance, successfully accomplishing the dual objectives of ecological friendliness and superior performance.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Infrastructure Maintenance and Monitoring · Transport Systems and Technology
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Beijing Key Laboratory of Traffic Engineering, Beijing University of Technology, Beijing 100124, China
Funding
National Natural Science Foundation of China · Beijing Municipal Education Commission · Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University · Open Funding of Engineering Research Center of Ministry of Education for Traffic Pavement Materials, Chang’an University
References (35)
Show source-provided references
1. Review of fume-generation mechanism, test methods, and fume suppressants of asphalt materials10.1016/j.jclepro.2022.131240 ↗
2. Flue gas composition of waste rubber modified asphalt (WRMA) and effect of deodorants on hazardous constituents and WRMA10.1016/j.jhazmat.2020.123814 ↗
3. Emission behavior of crumb rubber modified asphalt in the production process10.1016/j.jclepro.2022.130850 ↗
4. Laboratory investigation on fumes generated by different modified asphalt binders10.1016/j.trd.2023.103828 ↗
5. VOC emissions from asphalt pavement and health risks to construction workers10.1016/j.jclepro.2019.118757 ↗
6. Emissions of particulate matters, volatile organic compounds and polycyclic aromatic hydrocarbons from warm and hot asphalt mixes10.1016/j.jclepro.2020.123094 ↗
7. Asphalt fume dermal carcinogenicity potential: I. dermal carcinogenicity evaluation of asphalt (bitumen) fume condensates10.1016/j.yrtph.2011.04.003 ↗
8. Research progress of road asphalt smoke suppressant
9. Effect of ageing on rheological properties of storage-stable SBS/sulfur-modified asphalts10.1016/j.jhazmat.2010.06.061 ↗
10. The odour fingerprint of bitumen10.1080/14680629.2017.1304261 ↗
11. An overview of studies on the hazards, component analysis and suppression of fumes in asphalt and asphalt mixtures10.1016/j.conbuildmat.2021.123185 ↗
12. Effects of asphalt source and mixing temperature on the generated asphalt fumes10.1016/j.jhazmat.2019.03.025 ↗
13. Emission analysis of recycled tire rubber Modified Asphalt in hot and warm mix conditions10.1016/j.jhazmat.2018.11.080 ↗
14. Characterization of fume composition and rheological properties of asphalt with crumb rubber activated by microwave and TOR10.1016/j.conbuildmat.2017.07.199 ↗
15. Characteristics of VOCs generated during production and construction of an asphalt pavement10.1016/j.trd.2020.102517 ↗
16. Investigation of volatile low molecular weight compounds formed during continuous reclaiming of ground tire rubber10.1016/j.polymdegradstab.2015.05.007 ↗
17. Experimental study on the reduction of fumes emissions in asphalt by different additives10.1179/1432891715Z.0000000001395 ↗
18. Performance and VOCs emission inhibition of environmentally friendly rubber modified asphalt with UiO-66 MOFs10.1016/j.jclepro.2022.135633 ↗
19. Performance and inorganic fume emission reduction of desulfurized rubber powder/styrene–butadiene–styrene composite modified asphalt and its mixture10.1016/j.jclepro.2022.132690 ↗
20. Warm mix asphalt technology: An up to date review10.1016/j.jclepro.2020.122128 ↗
21. Performance of Warm Mix Asphalt containing Sasobit®: State-of-the-art10.1016/j.conbuildmat.2012.08.015 ↗
22. Preparation method and performance test of Evotherm pre-wet treatment aluminum hydroxide type warm-mixed flame-retardant asphalt10.1016/j.conbuildmat.2020.120618 ↗
23. Performance evaluation of warm mix asphalt involving natural zeolite and reclaimed asphalt pavement (RAP) for sustainable pavement construction10.1016/j.conbuildmat.2018.04.149 ↗
24. A comprehensive review of warm mix asphalt mixtures-laboratory to field10.1016/j.conbuildmat.2020.121781 ↗
25. Duan, Y. (2013). Research of the Features and Mechanism of Retardable Viscosity’s Asphalt in Cold Region. [Master’s Thesis, Chang’an University]. (In Chinese).
26. (2010). Standard Method of Test for Viscosity Determination of Asphalt Binder Using Rotational Viscometer (Standard No. AASHTO T316).
27. Oxidation and polymer degradation characteristics of high viscosity modified asphalts under various aging environments10.1016/j.scitotenv.2021.152601 ↗
28. Determination of zero shear viscosity of warm asphalt binders10.1016/j.conbuildmat.2008.08.015 ↗
29. (2009). Multiple Stress Creep Recovery (MSCR) Test of Asphalt Binder Using a Dynamic Shear Rheometer (DSR) (Standard No. AASHTO TP 70-1).
30. Characterizing SBS modified asphalt with sulfur using multiple stress creep recovery test10.1016/j.conbuildmat.2015.06.041 ↗
31. (2012). Standard Method of Test for Estimating Fatigue Tolerance of Asphalt Binders Using the Linear Amplitude Sweep (Standard No. AASHTO TP101-12).
32. An empirical model for modified bituminous binder master curves10.1617/s11527-012-9988-x ↗
33. Evaluation of rheological mastercurve models for bituminous binders10.1617/s11527-013-0191-5 ↗
34. Tribological characterization of bituminous binders with Warm Mix Asphalt additives10.1016/j.conbuildmat.2018.03.275 ↗
35. Effect of Warm Mix Additives on the Interfacial Bonding Characteristics of Asphalt Binders10.1080/10298436.2016.1240563 ↗