Utilisation of steel slag aggregates to propose novel asphalt pavement structures alleviating urban heat islands
Source abstract
Abstract
Asphalt pavements release their absorbed heat, exacerbating an urban issue called urban heat island (UHI). In this study, the base course and the interface of the asphalt mixture and the base course were modified with steel slag aggregates (33, 66, and 100%) and a conductive prime coat (40% steel slag powder) to mitigate this issue. The heat transfer rates of developed specimens were then investigated using a solar simulation setup. The thermal properties of these specimens were also measured using a C-Therm device, developing a numerical model using ANSYS Fluent software and computational fluid dynamics (CFD) algorithms. The base courses containing 66% steel slag aggregates and the conductive prime coat showed the best performance. These structures decreased the pavement surface temperature by 13% and nighttime outgoing heat by 38% and 33%, respectively. The air temperature near the surface of these pavement structures was also reduced by 14%.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Wind and Air Flow Studies · Hygrothermal properties of building materials · Urban Heat Island Mitigation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
École de Technologie Superieure
Funding
The Natural Sciences and Engineering Research Council of Canada
References (61)
Show source-provided references
1. AASHTO M 147-65. (2012). Standard specification for materials for aggregate and soil-aggregate subbase, base, and surface courses. American Association of State Highway and Transportation Officials.
2. 10.1016/j.rineng.2022.10082710.1016/j.rineng.2022.100827 ↗
3. 10.1007/s42947-020-0217-710.1007/s42947-020-0217-7 ↗
4. 10.1618/jhes.11.8510.1618/jhes.11.85 ↗
5. 10.1016/j.apm.2014.07.00110.1016/j.apm.2014.07.001 ↗
6. ASTM C127. (2015). Standard test method for relative density (specific gravity) and absorption of coarse aggregate. American Society for Testing and Materials.
7. ASTM C128. (2022). Standard test method for relative density (specific gravity) and absorption of fine aggregate. American Society for Testing and Materials.
8. ASTM C131/C131M. (2020). Standard test method for resistance to degradation of small-size coarse aggregate by abrasion and impact in the Los Angeles machine. American Society for Testing and Materials.
9. ASTM D113. (2017). Standard test method for ductility of asphalt materials. American Society for Testing and Materials.
10. ASTM D1557. (2021). Standard test methods for laboratory compaction characteristics of soil using modified effort (56,000 Ft-Lbf/Ft3 (2,700 KN-M/M3)) 1. American Society for Testing and Materials.
11. ASTM D1883. (2021). Standard test method for California bearing ratio (CBR) of laboratory-compacted soils. American Society for Testing and Materials.
12. ASTM D2042. (2015). Standard test method for solubility of asphalt materials in trichloroethylene. American Society for Testing and Materials.
13. ASTM D2940. (2020). Standard specification for graded aggregate material for bases or subbases for highways or airports. American Society for Testing and Materials.
14. ASTM D5. (2013). Standard test method for penetration of bituminous materials. American Society for Testing and Materials.
15. ASTM D6084. (2010). Standard test method for elastic recovery of bituminous materials by ductilometer. American Society for Testing and Materials.
16. ASTM D6930. (2019). Standard test method for settlement and storage stability of emulsified asphalts. American Society for Testing and Materials.
17. ASTM D6936. (2017). Standard test method for determining demulsibility of emulsified asphalt. American Society for Testing and Materials.
18. ASTM D6997. (2020). Standard test method for distillation of emulsified asphalt. American Society for Testing and Materials.
19. ASTM D7402. (2017). Standard practice for identifying cationic emulsified asphalts. American Society for Testing and Materials.
20. ASTM D7496. (2018). Standard test method for viscosity of emulsified asphalt by saybolt furol viscometer. Annual book of ASTM standards. American Society for Testing and Materials.
21. ASTM D7984. (2021). Standard test method for measurement of thermal effusivity of fabrics using a modified transient plane source (MTPS) instrument. American Society for Testing and Materials.
22. ASTM D8378. (2021). Standard test method for potential expansion of steel slag from hydration reactions by autoclave. American Society for Testing and Materials.
23. 10.1016/j.asej.2012.07.00610.1016/j.asej.2012.07.006 ↗
24. Bergman, T. L., Bergman, T. L., Incropera, F. P., DeWitt, D. P., & Lavine, A. S. (2011). Fundamentals of heat and mass transfer. John Wiley & Sons.
25. 10.1016/j.solener.2013.10.03110.1016/j.solener.2013.10.031 ↗
26. 10.3390/su1412728810.3390/su14127288 ↗
27. 10.1080/10298436.2021.195241010.1080/10298436.2021.1952410 ↗
28. 10.1016/j.applthermaleng.2016.11.08010.1016/j.applthermaleng.2016.11.080 ↗
29. 10.1016/j.conbuildmat.2019.11734510.1016/j.conbuildmat.2019.117345 ↗
30. Freeman T. J. Button J. W. & Estakhri C. K. (2010). Effective prime coats for compacted pavement bases (FHWA/TX-10/0-5635-1). Article FHWA/TX-10/0-5635-1. https://trid.trb.org/view/984416.
31. IEEE 442. (2017). Guide for thermal resistivity measurements of soils and backfill materials. IEEE Standards Association.
32. 10.1016/j.conbuildmat.2019.11701810.1016/j.conbuildmat.2019.117018 ↗
33. 10.1016/j.jclepro.2020.12119710.1016/j.jclepro.2020.121197 ↗
34. 10.1016/j.jclepro.2020.12357410.1016/j.jclepro.2020.123574 ↗
35. 10.1061/JMCEE7.MTENG-1521210.1061/JMCEE7.MTENG-15212 ↗
36. 10.1061/JPEODX.000030110.1061/JPEODX.0000301 ↗
37. 10.1061/(ASCE)MT.1943-5533.000423010.1061/(ASCE)MT.1943-5533.0004230 ↗
38. 10.1016/j.tsep.2023.10202010.1016/j.tsep.2023.102020 ↗
39. 10.3390/coatings1201000710.3390/coatings12010007 ↗
40. 10.2478/cee-2023-005710.2478/cee-2023-0057 ↗
41. 10.1007/s10098-023-02481-810.1007/s10098-023-02481-8 ↗
42. Mantilla C. A. & Button J. W. (1994). Prime coat methods and materials to replace cutback asphalt.
43. 10.1061/(ASCE)0733-947X(2009)135:10(773)10.1061/(ASCE)0733-947X(2009)135:10(773) ↗
44. 10.1016/j.conbuildmat.2019.11769310.1016/j.conbuildmat.2019.117693 ↗
45. Nippon Slag Association. (2016). Production and uses of steel slag in Japan.
46. 10.1061/(ASCE)MT.1943-5533.000371110.1061/(ASCE)MT.1943-5533.0003711 ↗
47. Québec, MTMDET. (2016). Hot mix asphalt formulated according to the Pavement Laboratory formulation method, 4 Liants Enrobés.
48. 10.4324/978131507377410.4324/9781315073774 ↗
49. 10.1016/j.jclepro.2017.07.10910.1016/j.jclepro.2017.07.109 ↗
50. 10.1016/j.conbuildmat.2022.12935010.1016/j.conbuildmat.2022.129350 ↗
51. 10.3390/infrastructures805009510.3390/infrastructures8050095 ↗
52. Shamsaei, M., Carter, A., & Vaillancourt, M. (2024a). The comparison of the bleeding potential of chip seals developed with recycled materials and limestone aggregates. In N. Banthia, S. Soleimani-Dashtaki, & S. Mindess (Eds.), Smart & sustainable infrastructure: building a greener tomorrow (Vol. 48, pp. 521–531). Springer Nature Switzerland.10.1007/978-3-031-53389-1_48 ↗
53. 10.1016/j.cscm.2024.e0334610.1016/j.cscm.2024.e03346 ↗
54. 10.1007/s10098-018-1657-510.1007/s10098-018-1657-5 ↗
55. 10.1007/s10098-019-01788-910.1007/s10098-019-01788-9 ↗
56. 10.1016/j.conbuildmat.2020.11871010.1016/j.conbuildmat.2020.118710 ↗
57. 10.1016/j.conbuildmat.2020.11808810.1016/j.conbuildmat.2020.118088 ↗
58. 10.1016/j.buildenv.2018.10.01710.1016/j.buildenv.2018.10.017 ↗
59. 10.1016/j.conbuildmat.2017.07.14910.1016/j.conbuildmat.2017.07.149 ↗
60. Zaika, Y., & Djakfar, L. (2016). Gradation band of some types material for reservoir base of porous pavement. GEOMATE Journal, 11(25), 2486–2492.
61. 10.1080/10298436.2017.129326710.1080/10298436.2017.1293267 ↗