01553023

Component

https://doi.org/10.3141/2506-16

Measurement of the field permeability of asphalt pavement is affected by three-dimensional flow, saturation, and other field boundary conditions. Therefore, field permeability testing is generally avoided for compaction quality control, mix evaluation, and evaluation of moisture intrusion or damage of asphalt pavements. Instead, laboratory permeability is used for asphalt mix (compaction) evaluation. Because most transportation agencies and paving contractors collect field cores for compaction and mix quality evaluation, an analytical model to predict field permeability can be useful in the study of the hydraulic conductivity of field pavements. This study used an analytical model to determine the field permeability of asphalt pavement by using laboratory tests for permeability and permeable pores of cores. Permeability and the permeable porosity of two sizes of asphalt cores were determined in the laboratory with a falling head permeameter that was modified with a salt concentration–measuring meter. The parameters were then used in the analytical model to predict field permeability. The predicted values from the model were found to compare reasonably well with the full-scale field permeability values. The results of the analytical model were compared with the results from existing models, and the developed analytical model showed an improvement over the existing models. The model can be a useful tool in the study of the hydraulic behavior of asphalt.

01596058

15-5810

English

pp 149–159

2015

Transportation Research Record: Journal of the Transportation Research Board

9780309369299

Print

Figures (11) ; Photos; References (23) ; Tables (3)

Asphalt pavements; Core samples; Laboratory tests; Mathematical models; Mathematical prediction; Permeability; Permeameters; Porosity

Analytical models

Highways; Materials; Pavements

TRIS, TRB, ATRI

Dec 30 2014 1:56PM

• Biomodification of Rubberized Asphalt and Its High Temperature Properties
• Characterization of Adhesion and Healing at the Interface Between Asphalt Binders and Aggregate Using Atomic Force Microscopy
• Correlating Laboratory Test Methodologies to Measure Skid Resistance of Pavement Surfaces
• Effect of Mineral Fillers on the Oxidative Aging of Asphalt Binders: Laboratory Study with Mastics
• Effect of Recycling Agents on the Laboratory Performance of Asphalt Mixtures Containing Recycled Asphalt Shingles
• Effect of Water Content on Binder Foaming Characteristics and Foamed Mixture Properties
• Fatigue and Rutting Evaluation of Laboratory-Produced Asphalt Mixtures Containing Reclaimed Asphalt Pavement
• Fatigue Performance Evaluation of Rubberized Porous European Mixture by Simplified Viscoelastic Continuum Damage Model
• Improved Methodology to Evaluate Fracture Properties of Warm-Mix Asphalt Using Overlay Test
• Laboratory Tests and Numerical Simulations of Mixing Superheated Virgin Aggregate with Reclaimed Asphalt Pavement Materials
• Nanomechanical Evaluation of Vapor-Conditioned and Unconditioned Asphalt
• Numerically Supported Experimental Determination of the Behavior of the Interlayer Bond in Asphalt Pavement
• Precision of the Hamburg Wheel-Track Test
• Quantitative Characterization of Binder Blending: How Much Recycled Binder Is Mobilized During Mixing?
• Use of the Resilient Modulus Test to Characterize Asphalt Mixtures with Recycled Materials and Recycling Agents