01155553

Component

https://doi.org/10.3141/2181-12

http://scholar.google.com...utay&publication_year=2010

Two groups of asphalt–aggregate mixtures were fabricated by two methods: gyratory compaction in the laboratory and roller compaction in the field. Two stress states were utilized in the flow number repeated load permanent deformation test, which was modified to provide radial and volumetric strains. The measured multiaxial response provided additional insight into quantifiable differences where gyratory compaction produced mixtures that were initially more resistant to permanent deformation than roller compaction; however, confounding effects of asphalt binder aging cannot be ignored. The field-compacted mixtures exhibited less dilation than the roller-compacted mixtures. However, both dilated in the less confined and more confined stress state. This did not agree with the volumetric consolidation observed in full-scale rutted wheelpaths. The implications of the phenomena are important because the flow number test using the asphalt mixture performance tester is extended to performance prediction beyond this application to index mixtures’ permanent deformation during mix design.

01328240

10-3898

English

pp 109-116

2010

Transportation Research Record: Journal of the Transportation Research Board

9780309160551

Print

Figures (7) ; Photos (2) ; References (18)

Aging (Materials); Asphalt mixtures; Bituminous binders; Core samples; Dilation; Laboratory tests; Rutting

Field compaction; Flow number test; Gyratory compaction; Laboratory compacted samples

Highways; Materials; Pavements; I31: Bituminous Binders and Materials

TRIS, TRB, ATRI

Jan 25 2010 11:59AM

• Characterization of Permanent Deformation of Asphalt Mixtures Based on Shear Properties
• Development of a Flow Number Predictive Model
• Development of Artificial Neural Network Predictive Models for Populating Dynamic Moduli of Long-Term Pavement Performance Sections
• Effect of Thermal Stresses on Pavement Performance Under Mild Climate Conditions
• Estimate of Fatigue Shift Factors Between Laboratory Tests and Field Performance
• Estimation of Stress Conditions for the Flow Number Simple Performance Test
• Fénix Test: Development of a New Test Procedure for Evaluating Cracking Resistance in Bituminous Mixtures
• Fatigue Crack Propagation Model of Asphalt Concrete Based on Viscoelastic Fracture Mechanics
• Multiscale Modeling to Predict Mechanical Behavior of Asphalt Mixtures
• Semiempirical, Analytical, and Computational Predictions of Dynamic Modulus of Asphalt Concrete Mixtures
• Stiffening Mechanisms of Asphalt–Aggregate Mixtures: From Binder to Mixture
• Use of Nonuniform Stress-State Tests to Determine Fracture Energy of Asphalt Mixtures Accurately