Laboratory Methods for Assessing the Influence of Improper Asphalt Mix Compaction on Its Performance
Department of Geotechnical Engineering, Faculty of Civil Engineering and Architecture, Lublin University of Technology, Nadbystrzycka 40, 20-618 Lublin, Poland
*
Author to whom correspondence should be addressed.
Materials 2020, 13(11), 2476; https://doi.org/10.3390/ma13112476
Received: 6 May 2020
/
Revised: 24 May 2020
/
Accepted: 26 May 2020
/
Published: 29 May 2020
(This article belongs to the Special Issue Testing of Materials and Elements in Civil Engineering)
Compaction index is one of the most important technological parameters during asphalt pavement construction which may be negatively affected by wrong asphalt paving machine set, weather conditions, or the mix temperature. Presented laboratory study analyzes the asphalt mix properties in case of inappropriate compaction. The reference mix was designed for AC 11 S wearing layer (asphalt concrete for wearing layer with maximum grading of 11 mm). Asphalt mix samples used in the tests were prepared using Marshall device with the compaction energy of 2 × 20, 2 × 35, 2 × 50, and 2 × 75 blows as well as in a roller compactor where the slabs were compacted to various heights: 69.3 mm (+10% of nominal height), 66.2 mm (+5%), 63 mm (nominal), and 59.9 mm (−5%) which resulted in different compaction indexes. Afterwards the samples were cored from the slabs. Both Marshall samples and cores were tested for air void content, stiffness modulus in three temperatures, indirect tensile strength, and resistance to water and frost indicated by ITSR value. It was found that either insufficient or excessive level of compaction can cause negative effect on the road surface performance.
View Full-Text
Keywords:
asphalt mix; compaction index; volumetric parameters; stiffness modulus; moisture resistance
▼
Show Figures
Figure 1
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Wróbel, M.; Woszuk, A.; Franus, W. Laboratory Methods for Assessing the Influence of Improper Asphalt Mix Compaction on Its Performance. Materials 2020, 13, 2476. https://doi.org/10.3390/ma13112476
AMA Style
Wróbel M, Woszuk A, Franus W. Laboratory Methods for Assessing the Influence of Improper Asphalt Mix Compaction on Its Performance. Materials. 2020; 13(11):2476. https://doi.org/10.3390/ma13112476
Chicago/Turabian StyleWróbel, Michał, Agnieszka Woszuk, and Wojciech Franus. 2020. "Laboratory Methods for Assessing the Influence of Improper Asphalt Mix Compaction on Its Performance" Materials 13, no. 11: 2476. https://doi.org/10.3390/ma13112476
Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
