Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The Volatile Organic Compounds (VOCs) in asphalt fume is widely concerned currently due to its biological toxicity, while the negative effects by asphalt Gaseous Inorganic Compounds (GICs) have not been well quantified and addressed yet. The study investigated the thermodynamic characteristics of base and modified asphalt binders during the multiple phases of releasing the GICs, then the releasing amounts and concentrations of GICs were quantified by fume analyzer. Meanwhile, the environmental impacts of GICs from 4 kinds of asphalt binders have been quantified and interpreted. The results showed that the modified asphalt released less proportion of GICs than base asphalt as heated by same thermal condition according to the TG-DTG and enthalpy analysis. Considering 1 g of asphalt sample, the base asphalt could release extra 8 mg of GICs than modified asphalt, additionally, the emissions of NO, NO, CO, and SO are all less than the mass of 1 mg. For the environmental effects, the releasing GICs had the greatest impacts on human toxicity due to the intensive CO emission. These results are expected to provide reference and new insights into the improvement of asphalt fumes mitigation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.envpol.2024.124954 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effects of sand, asphalt, and a three degrees hind toe or heel elevation on equine cervical and thoracolumbosacral kinematics at walk and trot.
J Equine Vet Sci
September 2025
University of Calgary, Department of veterinary science, 3280 Hospital Dr NW, Calgary AB T2N 4Z6.
Background: Effects of ground surface and hoof angles on equine cervical and thoracolumbosacral kinematics are poorly understood. However, the equine cervical and thoracolumbosacral areas present frequent lesions and he management of factors that might improve treatment and rehabilitation outcomes, such as ground surface and hoof angles, requires more investigation.
Aims: Our objectives were to determine the influence of ground surface (asphalt versus sand) and a 3 degrees hind toe or heel elevation on cervical and thoracolumbosacral kinematics during walking and trotting.
Investigating the performance of asphalt pavements modified with reclaimed asphalt and crumb rubber.
Sci Rep
September 2025
Highway Engineering Key Lab of Sichuan Province, School of Civil Engineering, Southwest Jiaotong University, Chengdu, 610031, China.
This research provides useful insights into sustainable and cost-effective pavement rehabilitation by evaluating the combined effects of both Reclaimed Asphalt Pavement (RAP) and Crumb Rubber (CR) modification on flexible pavement performance using actual motorway sections. Pavement rehabilitation and maintenance can enhance the design and serviceable life of the pavement. Additionally, modification of asphalt with Crumb Rubber (CR) and Reclaimed Asphalt Pavement (RAP) not only proves to be economical but can also increase the resistance of flexible pavement concerning rutting, fatigue, and moisture damage.
View Article and Find Full Text PDFStudy on the Adaptability of FBG Sensors Encapsulated in CNT-Modified Gel Material for Asphalt Pavement.
Gels
July 2025
Department of Electrical Engineering, College of Science and Technology, University of Nottingham Ningbo China, Ningbo 315100, China.
To prolong the service life of asphalt pavement and reduce its maintenance cost, a fiber Bragg grating (FBG) sensor encapsulated in carboxylated carbon nanotube (CNT-COOH)-modified gel material suitable for strain monitoring of asphalt pavement was developed. Through tensile and bending tests, the effects of carboxylated carbon nanotubes on the mechanical properties of gel materials under different dosages were evaluated and the optimal dosage of carbon nanotubes was determined. Infrared spectrometer and scanning electron microscopy were used to compare and analyze the infrared spectra and microstructure of carbon nanotubes before and after carboxyl functionalization and modified gel materials.
View Article and Find Full Text PDFReutilization of waste polymer plastics: a molecular dynamics study on toughness enhancement and interfacial mechanisms in SBS-modified asphalt.
Phys Chem Chem Phys
August 2025
School of Civil and Hydraulic Engineering, Lanzhou University of Technology, Lanzhou, Gansu, China.
Plastics are widely used as modifiers to enhance asphalt pavement performance due to their distinctive molecular structure. However, there is still limited theoretical analysis of the effect of plastics on the aging behavior of SBS-modified asphalt on a molecular scale. Therefore, in this study, molecular dynamics software was used to establish aging behavior of SBS-modified asphalt with different types of plastics (polyethylene (PE), polypropylene (PP), and poly acrylic (PA)).
View Article and Find Full Text PDFStudy on the water stability and safety mechanism of warm mixed recycled SBS modified asphalt mixture.
Sci Rep
August 2025
College of Transportation, Shandong University of Science and Technology, Qingdao, 266510, Shandong, China.
The warm-mix recycled asphalt mixture (RAM), which integrates the warm-mix technique with recycling technology, offers significant energy savings and promotes the effective use of waste materials, delivering both environmental and economic benefits. Therefore, this study selected Evotherm surface-active additive to investigate its impact on the properties of recycled asphalt binder and its corresponding mixture, compared and analyzed the differences between road properties of hot-mix RAM and warm-mix RAM, focusing on the water stability of warm-mix RAM and the safety mechanism of warm-mix additive. The results revealed that while Evotherm did not significantly alter the penetration, softening point, or ductility of recycled SBSMA, it enhanced the surface energy and aggregate adhesion.
View Article and Find Full Text PDF