The Environment-Friendly High-Elasticity Asphalt Mixture Using as Stress Absorbing Layer

Abstract:

The rubber- fly ash modified asphalt mixture formula was made by comprehensive laboratory test. The mixture graduation was determined with improved Superpave design method. The new material had good performance through laboratory test. The overlay of old concrete pavement was analyzed by establishing finite element model. The layer-layers could set stress absorbing layers or not; Stress absorbing layer had a absorption effect on stress in cracks and inhibiting effect on crack expanding. The results show that: the stress-absorbing layer of new materials can significantly reduce the stress concentration in cracks, effectively prevent the development of reflection crack and has excellent crack resistance. Meanwhile the adaptability of new materials used as stress absorbed layer is verified

• Periodical: Advanced Materials Research (Volumes 490-495)
• Pages: 3753-3761
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.490-495.3753
• Online since: March 2012
• Authors: Jun Yong Liu, Liu Jun Zhang, Bo Kou, Peng Shen
• Keywords: Finite Element Analysis (FEA), Fracture Resistance, Highway Engineering, Pavement Performance, Rubber-Fly Ash Modified Asphalt Mixture, Stress Absorbing Layer

References

[1] Xun-dong WANG, Mei-jiang LI, et al: The applied technology of the crumb rubber in the asphalt and mixture. China Communications Press, Bei Jing (2008). pp.43-78.

[2] Jun-yong LIU, Fa-ru ZHANG, Ai-li ZHAO: submitted to Subgrade Engineering (2010). pp.72-76.

[3] Bo KOU: Experiment study on the modified asphalt of rubber and pulverized coal ash (Ph M thesis). Chang'an University, Xi 'an (2010).

[4] Yi-qiu TAN, Kun-lei SHI, Li-min LI, Guo-ming CHEN, Lun JI: submitted to Journal of Harbin Institute of Technology (2008), Vol. 40(2). pp.241-245.

[5] Research Institute of Highway Ministry of Transport: Technical Specifications for Construction of Highway Asphalt Pavements JTG F40-2004. China Communications Press, Bei Jing( 2004).

[6] Research Institute of Highway Ministry of Transport: Standard Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering JTJ 052-2000. China Communications Press, Bei Jing(2000).

[7] CCCC Highway Consultants Co., Ltd: Specifications 0f Cement Concrete Pavement Design for Highway JTG D40-2002. China Communications Press, Bei Jing(2002).

[8] Fu-jie ZHOU, Li-jun SUN: submitted to Journal of Tongji University(2001), Vol 29(10). pp.1234-1239.

[9] Zhi-gang ZHOU: A Research on the Fatigue Damage Cracking in Asphalt Pavement under Traffic Load(Ph D thesis). Central South University, Chang Sha(2003).

[10] CCCC Highway Consultants Co., Ltd: Specifications for Design of Highway Asphalt Pavement JTG D50-2006. China Communications Press, Bei Jing(2006).

[11] Zhi-yi HUANG, Jin-chang WANG, and Xiang-rong ZHU: submitted to Journal of Zhejiang University (Engineering Science) (2007), Vol. 41(1). pp.114-119.