Performance Evaluation of Crumb Rubber-Modified Asphalt Mixtures Based on Laboratory and Field Investigations

Research studies often propose additives to improve the mechanical properties that extend pavement service life by reducing the rate of permanent deformation of conventional asphalt mixtures. However, questions remain regarding the consistency and efficacy of additives compared to the conventional mixtures, particularly under different conditions of loading and climate inherent to various countries and locations. To shed further light, this paper presents a laboratory and field evaluation of Marshall and Superpave Gyratory-compacted crumb rubber-modified and traditional asphalt concrete mixtures. A laboratory-based study was conducted to ascertain the resilient modulus, indirect tensile strength, and permanent deformation of crumb rubber-modified asphalt mixtures. The Marshall stability and resilient modulus of mixtures prepared with crumb rubber-modified mixtures were increased on average by 30 and 43%, respectively, as compared to the control mixtures, whereas the permanent deformation of the crumb rubber-modified mixtures was improved on average by 12% in contrast to the control mixtures. Field investigations on short-term effectiveness revealed crumb rubber-modified asphalt mixture treatment exhibited on average 36.16% drop in International Roughness Index. In contrast, the control mixture pavement showed 24.20% drop in International Roughness Index. The results indicate and quantify the extent to which crumb rubber improves the performance of the conventional mixtures, in terms of the performance criteria specified.

[1]  Samuel Labi,et al.  Evaluating the Cost Effectiveness of Flexible Rehabilitation Treatments Using Different Performance Criteria , 2009 .

[2]  Shafeeq Ahmed,et al.  Empirical Correlation of Permanent Deformation Tests for Evaluating the Rutting Response of Conventional Asphaltic Concrete Mixtures , 2017 .

[3]  S. Osman,et al.  Evaluation of Crumb Tire Rubber-Modified Hot Mix Asphalt Concrete in Sudan , 2012 .

[4]  Brian K Diefenderfer,et al.  Evaluation of Cold In-Place and Cold Central-Plant Recycling Methods Using Laboratory Testing of Field-Cored Specimens , 2013 .

[5]  Hainian Wang,et al.  Investigation of the rheological modification mechanism of crumb rubber modified asphalt (CRMA) containing TOR additive , 2014 .

[6]  E. Fathy,et al.  Impact of incorporated gamma irradiated crumb rubber on the short-term aging resistance and rheological properties of asphalt binder , 2015 .

[7]  Wenzhi Li,et al.  Novel Method to Prepare Activated Crumb Rubber Used for Synthesis of Activated Crumb Rubber Modified Asphalt , 2015 .

[8]  Jorge C. Pais,et al.  Evaluating permanent deformation in asphalt rubber mixtures , 2009 .

[9]  F. Hernández-Olivares,et al.  Microscopic analysis of the interaction between crumb rubber and bitumen in asphalt mixtures using the dry process , 2013 .

[10]  Mohamed Rehan Karim,et al.  An overview of crumb rubber modified asphalt , 2012 .

[11]  Silvino Dias Capitão,et al.  Mechanical performance of dry process fine crumb rubber asphalt mixtures placed on the Portuguese road network , 2014 .

[12]  Khaled Z. Ramadan,et al.  Investigation of the effect of rubber on rheological properties of asphalt binders using superpave DSR , 2015 .

[14]  Y. Yildirim.  Polymer modified asphalt binders , 2007 .

[15]  Nuha Salim Mashaan,et al.  Effect of crumb rubber concentration on the physical and rheological properties of rubberised bitumen binders , 2011 .

[16]  Y. Ali,et al.  Performance Evaluation of Elvaloy as a Fuel-Resistant Polymer in Asphaltic Concrete Airfield Pavements , 2017 .

[17]  Miomir Miljković,et al.  Thin noise-reducing asphalt pavements for urban areas in Germany , 2012 .

[18]  Robert Y. Liang,et al.  SHORT-TERM AND LONG-TERM AGING BEHAVIOR OF RUBBER MODIFIED ASPHALT PAVING MIXTURE , 1996 .

[19]  M. Carmen Rubio Gámez,et al.  Influence of Crumb Rubber on the Indirect Tensile Strength and Stiffness Modulus of Hot Bituminous Mixes , 2012 .

[20]  B. B. Pandey,et al.  Laboratory evaluation of crumb rubber modified asphalt mixes , 2004 .

[21]  Morris De Beer,et al.  A study of crumb rubber modified bitumen used in South Africa , 2014 .

[22]  S. Khanzada,et al.  Investigation of factors affecting dynamic modulus and phase angle of various asphalt concrete mixtures , 2016 .

[23]  Soon-Jae Lee,et al.  Effect of FT Paraffin Wax Contents on Performance Properties of Crumb Rubber–Modified Asphalt Binders , 2015 .

[24]  Samuel Labi,et al.  Effectiveness of Highway Pavement Seal Coating Treatments , 2004 .

[25]  Nuha Salim Mashaan,et al.  Performance Evaluation of Crumb Rubber Modified Stone Mastic Asphalt Pavement in Malaysia , 2013 .

[26]  K P George,et al.  PAVEMENT MAINTENANCE EFFECTIVENESS , 1990 .

[27]  A. Modarres,et al.  A model for resilient modulus determination of recycled mixes with bitumen emulsion and cement from ITS testing results , 2010 .

[28]  A. Modarres,et al.  Developing laboratory fatigue and resilient modulus models for modified asphalt mixes with waste plastic bottles (PET) , 2014 .

[29]  Junan Shen,et al.  Multi-Scale Evaluation on the Interaction between Asphalt and Crumb Rubber , 2015 .

[30]  Soon-Jae Lee,et al.  Evaluation of rubber influence on cracking resistance of crumb rubber modified binders with wax additives , 2016 .

[31]  Baoshan Huang,et al.  Failure Probability of Resurfaced Preventive Maintenance Treatments , 2015 .

[32]  Soon-Jae Lee,et al.  The effect of crumb rubber modifier (CRM) on the performance properties of rubberized binders in HMA pavements , 2008 .

[33]  F. Aslani.  Mechanical Properties of Waste Tire Rubber Concrete , 2016 .