Repeated Creep Behavior of Polypropylene Fiber-Reinforced Bituminous Mixtures

In recent years, research has been devoted to the control of permanent deformations in flexible pavements. In order to prevent rutting, fatigue, and low-temperature cracking, different types of polymer modifiers have been utilized. The use of polypropylene (PP) fibers as a modifier in pavement mix that can be found locally and at low cost compared to other modifiers is an attractive option. This paper reports on the Marshall design and the optimum bitumen content for asphalt concrete with the addition of polypropylene fibers. Different types of PP fibers were used in order to determine the optimum bitumen content and the optimal PP fiber dosage. Marshall specimens were tested using the universal testing machine to determine the creep behavior of dense bituminous mixtures under repeated loading. The results from the analysis of the tested specimens show that the addition of polypropylene fibers improves the behavior of the specimens by increasing the life of samples under repeated creep testing.

[1]  Stephen A Cross,et al.  HEAVY-DUTY ASPHALT PAVEMENTS IN PENNSYLVANIA: EVALUATION FOR RUTTING , 1993 .

[2]  A Hofstra,et al.  PERMANENT DEFORMATION OF FLEXIBLE PAVEMENTS UNDER SIMULATED ROAD TRAFFIC CONDITIONS , 1972 .

[3]  J. Hills,et al.  THE CORRELATION OF RUTTING AND CREEP TESTS ON ASPHALT MIXES , 1974 .

[4]  G. Airey.  Rheological properties of styrene butadiene styrene polymer modified road bitumens , 2003 .

[5]  Gordon Airey,et al.  Rheological evaluation of ethylene vinyl acetate polymer modified bitumens , 2002 .

[6]  E R Brown,et al.  A NATIONAL STUDY OF RUTTING IN HOT MIX ASPHALT (HMA) PAVEMENTS , 1992 .

[7]  Bernard Brûlé,et al.  Polymer-Modified Asphalt Cements Used in the Road Construction Industry: Basic Principles , 1996 .

[8]  Adil Amirjanov,et al.  The development of a simulation model of the dense packing of large particulate assemblies , 2004 .

[9]  Wu Shaopeng,et al.  Effect of fiber types on relevant properties of porous asphalt , 2006 .

[10]  Jian-shiuh Chen,et al.  Mechanism and behavior of bitumen strength reinforcement using fibers , 2005 .

[11]  Gordon Airey,et al.  Fundamental Binder and Practical Mixture Evaluation of Polymer Modified Bituminous Materials , 2004 .

[12]  Van de Loo,et al.  CREEP TESTING, A SIMPLE TOOL TO JUDGE ASPHALT MIX STABILITY , 1974 .

[13]  Serkan Tapkın,et al.  The effect of polypropylene fibers on asphalt performance , 2008 .

[14]  Richard Gelles,et al.  Improved performance of paving asphalts by polymer modification , 1991 .

[15]  M. Aren Cleven,et al.  INVESTIGATION OF THE PROPERTIES OF CARBON FIBER MODIFIED ASPHALT MIXTURES , 2000 .

[16]  J L Goodrich,et al.  Asphaltic binder rheology, asphalt concrete rheology and asphalt concrete mix properties , 1991 .

[17]  H L Von Quintus,et al.  SPECIMEN GEOMETRY AND AGGREGATE SIZE EFFECTS IN UNIAXIAL COMPRESSION AND CONSTANT HEIGHT SHEAR TESTS , 2000 .

[18]  Xiaohu Lu,et al.  Rheological characterization of styrene-butadiene-styrene copolymer modified bitumens , 1997 .

[19]  Ke‐long Huang,et al.  Synthesis and electrochemical properties of SnO2-CuO nanocomposite powders , 2006 .

[20]  Gerald J. Malasheskie,et al.  FIELD PERFORMANCE OF FABRICS AND FIBERS TO RETARD REFLECTIVE CRACKING , 1989 .

[21]  Amy L. Simpson,et al.  Case Study of Modified Bituminous Mixtures: Somerset, Kentucky , 1994 .

[22]  Yeou-Shang Jenq,et al.  ANALYSIS OF CRACK RESISTANCE OF ASPHALT CONCRETE OVERLAYS--A FRACTURE MECHANICS APPROACH , 1993 .

[23]  Walaa S Mogawer,et al.  VALIDATION OF ASPHALT BINDER AND MIXTURE TESTS THAT MEASURE RUTTING SUSCEPTIBILITY USING THE ACCELERATED LOADING FACILITY , 2000 .