The Testing Method for Aggregate Internal Structure Types in Asphalt Pavements after Construction

Zhe-Sheng Ge ； Xiao-Ning Zhang

《International Journal of Pavement Research and Technology》 6卷3期 (2013/05) Pp. 235-238

https://doi.org/10.6135/ijprt.org.tw/2013.6(3).235

並列摘要

The aim of this study is solving the problem of acceptance of the aggregate internal structure types of asphalt pavements after construction. The core sample from pavement was taken as the research object. A method for evaluating the aggregate internal structure types was put forward. The steps of the testing method are as follows: measuring the height of the core sample from pavement (Hmix), getting coarse aggregate through burning the core sample, preparing the contrast sample by dry rodded method, and measuring the height of the sample (HDRC). When Hmix is less than or equal to HDRC, the aggregate structure in asphalt mixture is the skeleton structure; if not, it is the suspension structure. The testing specimens were obtained from three sections of an express way, and the AC-20 in middle surface and SMA-16 in upper surface were adopted in this test. We researched the effect of aggregate internal structure types on high temperature deformation resistance. The results show that the evaluation of aggregate internal structure types, namely Hmix/HDRC, is closely related to the high temperature deformation of mixture. The result of this study offers a new method to check the internal aggregate structure types of asphalt pavements after construction.

並列關鍵字

Acceptance ； Aggregate structure type ； Asphalt pavement ； Evaluation ； Pavement core sample

參考文獻

Ge, Z.-S. and Zhang, X.-N. (2010). Modification of Full Asphalt Content Asphalt Concrete Design Method, International Journal of Pavement Research and Technology, 3(3), pp. 156-159.

Lu, Q. and Harvey, J.T.. (2005). Evaluation of Moisture Sensitivity of Hot Mix Asphalt by Flexural Beam Fatigue Test, Proceedings of the R. Lytton Symposium on Mechanics of Flexible Pavements, Baton Rouge, LA, USA., pp. 124-133.

Pan, T., Tutumluer, E., and Carpenter, S.H. (2006). Effect of Coarse Aggregate Morphology on Permanent Deformation Behavior of Hot Mix Asphalt, Journal of Transportation Engineering, 132 (7), pp. 580-589.

Brown, E.R. and Haddock, J.E. (1997). A Method to Ensure Stone-on-stone Contact in Stone Matrix Asphalt Paving Mixtures, National Center for Asphalt Technology, Auburn University, Alabama, USA, pp. 1-2.

Ministry of Communications of the People's Republic of China (2004). Technical Specifications for Construction of Highway Asphalt Pavements, JTG F40-2004, People's Communication Press, pp. 28-30, Beijing, China (in Chinese).