The compaction characteristics of hot mixed asphalt mixtures

Abstract

The quality of compaction is important to the performance of hot mixed asphalt (HMA) pavement. Most premature failures of asphalt pavement are concerned with poor compaction. Compaction characteristic of HMA mixtures were studied. Compaction tests were done with typical widely used HMA mixtures, including dense gradation asphalt mixtures with different nominal maximum aggregate size (AC13,AC20,AC25), and mixtures with different gradation (AC13, SMA13,Sup13 and OGFC13). HMA mixtures were sampled at different compaction temperature and Marshall blow numbers, varying between 60 and 175 °C and between 15 and 75 lows, respectively. The compaction characteristics of these mixtures were evaluated. The results showed that the Marshall stability and volumetric properties were significantly affected by the compaction temperature. Mixtures with the same NMAS but different type of gradation need different compaction energy to get the designed density.

Keywords

compaction characteristic / hot mixed asphalt / compaction temperature / marshall blow number / gradation

References

[1] Gu H J, Li C M, Pan M Overall Analyzes Factory Affecting the Pavement Compacting Quality [J]. Liaoning Communication Science and Technology, 2005, 28(10): 9-12.

[2] Xu Q B The Research of Compaction Characteristics and Control Technology of Asphalt Pavement[D], 2008 Nanjing Southeast University

[3] Yang R H, Chen F J, Li S Y Discussion on the Causes of Water Damage on Bituminous Pavement on Freeway[J]. Journal of Guilin University of Technology, 2002, 22(3): 256-258.

[4] Jordan P G, Thomas M E Prediction of Cooling Curves for Hot-Mix Paving Materials by a Computer Program[R]. TRRL Report LR 729, 1976

[5] Jal H Establishing Hot Mix Asphalt Mixing and Compaction Temperature at the Project Level[R]. ASPHALT, 1998

[6] Azari H, McCuen R H, Stuart K D Optimum Compaction Temperature for Modified Binders[J]. Journal of Transportation Engineering, 2003, 129(5): 531-537.

[7] Qian G P, Huang H, Zheng J L, . Determining Compaction Temperatures Based on Asphalt Mixtures Test [J]. Paving Materials and Pavement Analysis, 2010 82-88.

[8] Akisetty C K, Lee S-J, Amirkhanian S N Effects of Compaction Temperature on Volumetric Properties of Rubberized Mixes Containing Warm-Mix Additives[J]. Journal of Materials in Civil Engineering, 2009, 21(8): 409-415.

[9] Delgadillo R, Bahia H U Effects of Temperature and Pressure on Hot Mixed Asphalt Compaction: Field and Laboratory Study [J]. Journal of Materials in Civil Engineering, 2008, 20(6): 440-448.

[10] DeSombre R, Newcomb D E, Chadbourn B, . Parameters to Define the Laboratory Compaction Temperature Range of Hot Mix Asphalt[J]. Asph. Paving Technol., 1998, 67: 125-145.

[11] Bahia H U, Hanson D I, Zeng M, . Characterization of Modified Asphalt Binders in Superpave Mix Design, 2001 Washington, D.C. National Academy Press

[12] Khatri A, Bahia H, Hanson D Mixing and Compaction Temperatures for Modified Binders Using the Superpave Gyratory Compactor [J]. Asph. Paving Technol., 2001, 70: 368-395.