Study on Climate Impacts on Asphalt Pavement in Tibet, China

Wang, Chao; Xian-xin, Zhou; Gao, Guodong

doi:10.4236/gep.2019.710004

Cited by 4 publications

(1 citation statement)

References 10 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the actual environment in which the asphalt pavement is located, the selection of suitable asphalt binder can not only enhance the durability [33,34], comfort, and safety of asphalt pavement but also achieve the purpose of economic and environmental protection, which is an effective way to achieve sustainable development. Therefore, many countries have conducted climate-based performance zoning studies and developed performance-level zoning standards for asphalt pavements based on local climate as a reference for asphalt suitability selection so that asphalt pavement design can be adapted to the climatic environment of a region [35,36]. For example, the U.S. Strategic Highway Research Program (SHRP) proposed a method for classifying asphalt pavement performance grades (PG) based on high-and low-temperature indicators [37].…”

Section: Introductionmentioning

confidence: 99%

Performance Zoning of Asphalt Pavement and Performance Grade (PG) of Asphalt Binder in Karamay: A Case Study of Xinjiang, China

Dong

Feng

2023

Sustainability

View full text Add to dashboard Cite

Asphalt binder is a temperature-sensitive material with a performance that is greatly affected by changing climates. Improper selection of asphalt will cause a lot of damage and affect the durability of the road. The establishment of asphalt pavement performance zoning in Xinjiang, a vast area with great temperature differences, will provide a reference for the selection of asphalt suitability, the refinement of pavement design, and the sustainable development of road engineering. In this study, 11 years of temperature data in the Xinjiang region have been collected and analyzed, and 98% reliability of pavement design temperature has been used to draw a performance grading map of asphalt pavement in the Xinjiang region based on the ArcGIS platform. Finally, the Xinjiang region is divided into nine performance zones. At the same time, the performance grades (PG) of five kinds of asphalt binders in Karamay are explored. The result shows that there is little difference in continuous PG span between different matrix asphalt binders; the lower the penetration grade, the better the high-temperature performance, and the worse the low-temperature performance. After adding the SBS modifier, the continuous PG span can be about 20 °C higher than the matrix asphalt. The indoor test of asphalt mixture also shows that SBS-modified asphalt has better durability. All these provide the basis for a reasonable selection of asphalt binders in different areas of Xinjiang.

show abstract

Section: Introductionmentioning

confidence: 99%