Influence of warm-mix asphalt technology and rejuvenator on performance of asphalt mixtures containing 50% reclaimed asphalt pavement

Abstract Warm-mix asphalt (WMA) technology and rejuvenator are widely used nowadays because of numerous environmental and economic benefits. This study evaluated the effects of warm-mix asphalt (WMA) technology and rejuvenator on the rutting resistance, cracking resistance, and moisture susceptibility of three types of asphalt mixtures. The three types of asphalt mixtures were (a) an asphalt mixture with 50% reclaimed asphalt pavement (RAP), (b) an asphalt mixture with 50% RAP and rejuvenator, (c) a warm mixture containing 50% RAP. The WMA mixtures were plant-produced with a foaming technology commonly used in the United States. Laboratory performance tests included the Superpave indirect tension (IDT) test, tensile strength ratio (TSR) test, asphalt pavement analyzer (APA) rutting test, Hamburg Wheel-tracking test (HWT) and semi-circular bending (SCB) test. Research shows that the rejuvenator could improve the moisture and cracking resistance, but increase the rutting potentials and decrease the indirect tensile strength. In contrast with the mixture with 50% RAP, WMA technology showed promising results in the rutting resistance and moisture susceptibility. Besides, adoption of WMA technology was more cost-effective.

[1]  Mansour Solaimanian,et al.  OPTIMIZING USE OF RECLAIMED ASPHALT PAVEMENT WITH THE SUPERPAVE SYSTEM , 1998 .

[2]  Jim Brownbridge.  The role of an asphalt rejuvenator in pavement preservation use and need for asphalt rejuvenation , 2010 .

[3]  Nam H Tran,et al.  Effect of Rejuvenator on Performance Properties of HMA Mixtures with High RAP and RAS Contents , 2012 .

[4]  B. Birgisson,et al.  DEVELOPMENT AND FIELD EVALUATION OF ENERGY-BASED CRITERIA FOR TOP-DOWN CRACKING PERFORMANCE OF HOT MIX ASPHALT (WITH DISCUSSION) , 2004 .

[5]  Z. Zhang,et al.  HOT MIX ASPHALT FRACTURE MECHANICS: A FUNDAMENTAL CRACK GROWTH LAW FOR ASPHALT MIXTURES , 2002 .

[6]  Xiang Shu,et al.  Characterizing blending efficiency of plant produced asphalt paving mixtures containing high RAP , 2016 .

[7]  Xiang Shu,et al.  Investigation of Reclaimed Asphalt Pavement blending efficiency through GPC and FTIR , 2014 .

[8]  Tseng-Hsing Hsu,et al.  Life cycle assessment on using recycled materials for rehabilitating asphalt pavements , 2008 .

[9]  J van der Kooij,et al.  SEMI-CIRCULAR BENDING TEST TO ASSESS THE RESISTANCE AGAINST CRACK GROWTH , 2003 .

[10]  Baoshan Huang,et al.  Laboratory evaluation of moisture susceptibility of foamed warm mix asphalt containing high percentages of RAP , 2012 .

[11]  Imad L. Al-Qadi,et al.  Impact of High RAP Contents on Structural and Performance Properties ofAsphalt Mixtures , 2012 .

[12]  R. Roque,et al.  The development of a measurement and analysis system to accurately determine asphalt concrete properties using the indirect tensile mode , 1992 .

[13]  Robert Frank,et al.  Influence of Six Rejuvenators on the Performance Properties of Reclaimed Asphalt Pavement (RAP) Binder and 100% Recycled Asphalt Mixtures , 2014 .

[14]  M S Buchanan,et al.  LOADED WHEEL TESTERS IN THE UNITED STATES: STATE OF THE PRACTICE , 2000 .

[15]  Sheng Zhao,et al.  Comparative evaluation of warm mix asphalt containing high percentages of reclaimed asphalt pavement , 2013 .

[16]  Sheng Zhao,et al.  Laboratory Investigation of Biochar-Modified Asphalt Mixture , 2014 .

[17]  M. A. Mull,et al.  Fracture resistance characterization of chemically modified crumb rubber asphalt pavement , 2002 .

[18]  Prithvi S. Kandhal,et al.  Hot Mix Asphalt Materials, Mixture Design and Construction , 1996 .

[19]  Guoqiang Li,et al.  Laboratory Investigation of Mixing Hot-Mix Asphalt with Reclaimed Asphalt Pavement , 2005 .

[20]  Imad L. Al-Qadi,et al.  Reclaimed Asphalt Pavement – A Literature Review , 2007 .

[21]  D Newcomb,et al.  WARM MIX: THE WAVE OF THE FUTURE? , 2005 .

[22]  M. Elseifi,et al.  Characterization of asphalt mixture's fracture resistance using the semi-circular bending (SCB) test , 2012 .

[23]  R M Anderson,et al.  Recommended use of reclaimed asphalt pavement in the Superpave mix design method: technician's manual. , 2000 .

[25]  Xiang Shu,et al.  Use of molecular dynamics to investigate diffusion between virgin and aged asphalt binders , 2016 .

[26]  Fujie Zhou,et al.  Impacts of rejuvenators on performance and engineering properties of asphalt mixtures containing recycled materials , 2014 .

[27]  W. Buttlar,et al.  Evaluation of Warm Mix Asphalt Mixtures Containing Reclaimed Asphalt Pavement through Mechanical Performance Tests and an Acoustic Emission Approach , 2013 .

[28]  F. Moreno,et al.  Warm mix asphalt: an overview , 2012 .

[29]  Kent R Hansen,et al.  Annual Asphalt Pavement Industry Survey on Recycled Materials and Warm-Mix Asphalt Usage: 2009–2012 , 2013 .

[30]  Reynaldo Roque,et al.  DEVELOPMENT AND EVALUATION OF THE STRATEGIC HIGHWAY RESEARCH PROGRAM MEASUREMENT AND ANALYSIS SYSTEM FOR INDIRECT TENSILE TESTING AT LOW TEMPERATURES , 1994 .

[31]  Xiang Shu,et al.  Laboratory Investigation of Cracking Resistance of Hot-Mix Asphalt Field Mixtures Containing Screened Reclaimed Asphalt Pavement , 2011 .

[32]  Xiang Shu,et al.  Laboratory evaluation of fatigue characteristics of recycled asphalt mixture , 2008 .

[33]  Baoshan Huang,et al.  Investigation on the microstructure of recycled asphalt shingle binder and its blending with virgin bitumen , 2015 .

[34]  B. Prowell,et al.  Warm-mix asphalt: best practices , 2011 .

[35]  Audrey Copeland,et al.  Reclaimed Asphalt Pavement in Asphalt Mixtures: State of the Practice , 2011 .

[36]  Baoshan Huang,et al.  Quantitative Characterization of Binder Blending , 2015 .