01124392

Component

https://doi.org/10.3141/2126-11

http://scholar.google.com...madi&publication_year=2009

Bituminous pavements provide a resilient, waterproof, load-distributing medium that protects the base course from the detrimental effects of water and the abrasive action of traffic. Bituminous pavements are subject to maintenance as a result of wear, weathering, and deterioration from aging. Flexibility of bituminous pavement permits slight adjustments in the pavement structure, resulting from consolidation of base course or effect of load, without detrimental effect. Hot-mix bituminous pavements are designed by either the Marshall or gyratory method. Development of modified bituminous materials to improve pavement performance has been the focus of several research efforts over the past few decades. Several attempts were made to modify bituminous mixes. The concept of using fibers to improve the behavior of the bituminous mixes is a recent development in the field. This research work compares the effects of polypropylene fiber on bituminous mixes with the help of laboratory investigations. The Marshall stability and flow values have been determined to evaluate the strength and deformation characteristics. To evaluate the field performance, indirect tensile strength, tensile strength ratio, retained stability, and permanent deformation have been determined through tests. With an increase in fiber content, Marshall stability values increase, density values decrease, and optimum binder content slightly increases. The indirect tensile strength increases with an increase in fiber content in the mix. The tensile strength ratio and retained stability increase with an increase in fiber content, indicating improved moisture resistance. Permanent deformation decreases with an increase in fiber content, indicating a decrease in rutting potential.

01147489

09-0924

English

pp 91-99

2009

Transportation Research Record: Journal of the Transportation Research Board

9780309142564

Print

Figures (6) ; References (2) ; Tables (12)

Bituminous mixtures; Bituminous pavements; Hot mix asphalt; Mix design; Polymer fibers; Polypropylene; Rutting; Tensile strength

Fiber content; Indirect tensile strength; Marshall stability (Pavements); Moisture resistance

Highways; Materials; Pavements; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials

TRIS, TRB, ATRI

Jan 30 2009 5:10PM

• Application of Elastic–Viscoelastic Correspondence Principle to Determine Fatigue Endurance Limit of Hot-Mix Asphalt
• Asphalt Cement Loss Tangent as Surrogate Performance Indicator for Control of Thermal Cracking
• Characterizing Fatigue of Asphalt Binders with Viscoelastic Continuum Damage Mechanics
• Comparison of Asphalt Rubber and Conventional Mixture Properties: Considerations for Mechanistic–Empirical Pavement Design Guide Implementation
• Determining Intrinsic Healing Properties of Asphalt Binders: Role of Dynamic Shear Rheometer
• Effect of Crumb Rubber Bituminous Mixes on Functional Characteristics of Road Pavements
• Effects of Warm-Mix Asphalt Additives on Workability and Mechanical Properties of Reclaimed Asphalt Pavement Material
• Evaluation of Bond Strength of Tack Coat Materials in Field: Development of Pull-Off Test Device and Methodology
• Evaluation of Warm-Mix Asphalt Produced with the Double Barrel Green Process
• Field and Laboratory Forensic Analysis of Reflective Cracking on Massachusetts Interstate 495
• Laboratory and Field Evaluations of Foamed Warm-Mix Asphalt Projects
• Laboratory Investigation of Moisture Damage in Warm-Mix Asphalt Containing Moist Aggregate
• Modeling of Repeated Creep and Recovery Experiments in Asphalt Binders
• Performance of Polymer-Modified Asphalt Mixture with Reclaimed Asphalt Pavement
• Practical Use of Multiple Stress Creep and Recovery Test: Characterization of Styrene–Butadiene–Styrene Dispersion and Other Additives in Polymer-Modified Asphalt Binders
• Testing of Moderate and High Reclaimed Asphalt Pavement Content Mixes: Laboratory and Accelerated Field Performance Testing at the National Center for Asphalt Technology Test Track
• Virginia’s Higher Specification for Reclaimed Asphalt Pavement: Performance and Economic Evaluation