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Abstract

This paper describes tests undertaken to characterize the deformation behaviour of idealized bituminous mixtures and the development of a model to describe the permanent deformation exhibited by these mixtures in a wheel-tracking test. Steady state uniaxial and triaxial tests are used to characterize the deformation behaviour of the idealized mixtures over a range of stress levels, strain rates and temperatures. Results show that at low stress levels the deformation mechanism is linear viscous flow whereas at high stress levels the deformation mechanism is non-linear viscous flow with a power-law creep exponent of approximately 2.4. Wheel tracking tests have been performed over a range of applied stress levels and temperatures. Results indicate that the accumulation of permanent deformation in these idealized mixtures is non-linear. The measured uniaxial and triaxial properties have been used in a viscous model to predict the permanent deformation measured from wheel tracking tests. A method is presented for incorporating the observed non-linear behaviour of these materials in a linearized viscous approach. The results indicate good agreement between predictions and measurements, indicating the applicability of this type of model.

Keywords

permanent deformation uniaxial triaxial steady state wheel tracking viscous

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References

Brown

S. F.

Achievements and challenges in asphalt pavement engineering. In Proceedings of the Eighth International Conference on

Asphalt Pavements, University of Washington, Seattle, Washington, 1997, Vol. 3, pp. 19–41.

Eisenmann

Hilmer

Influence of wheel load and inflation pressure on the rutting effect at theoretical investigations. In Proceedings of the 6th International Conference on

The Structural Design of Asphalt Pavements, University of Michigan, Ann Arbor, Michigan, 1987, pp. 392–404.

Anon.

Permanent deformation response of asphalt aggregate mixtures. Report SHRP-A-415, Strategic Highway Research Program, National Asphalt Pavement Association, Maryland, 1994.

Cheung

C. Y.

Cebon

Experimental study of pure bitumen in tension, compression and shear. J. Rheology, 1997, 41 (1), 45–73.

Cheung

C. Y.

Cebon

Deformation mechanisms of pure bitumen

J. Mater. Civ. Engng, 1997, 9 (3), 117–129.

Deshpande

Cebon

Steady-state constitutive relationship for idealized asphalt mixes

Mechanics Mater., 1999, 31 (4), 271–297.

Collop

A. C.

Khanzada

Permanent deformation in idealised mixtures and bitumen properties. In Proceedings of the Eurobitume Workshop ‘99 on

Performance Related Properties for Bituminous Binders, Luxembourg, 1999, paper 124.

Collop

A. C.

Khanzada

Permanent deformation behaviour of idealised bituminous mixtures. In Proceedings of the Third European Symposium on

Performance and Durability of Bituminous Materials and Hydraulic Stabilised Composites, Leeds, 1999, pp. 47–58.

Khanzada

Permanent deformation in bituminous mixtures. PhD thesis, School of Civil Engineering, University of Nottingham, 2000.

10.

Jacobs

F. A.

Properties of rolled asphalt and asphalt concrete at different states of compaction. Report SR 288, Transport and Road Research Laboratory, Crowthorne, Berkshire, 1977.

11.

Brown

S. F.

Gibb

J. M.

Validation experiments for permanent deformation testing of bituminous mixtures

Asphalt Paving Technol., 1996, 65, 255–290.

12.

Rowe

G. M.

Cooper

K. E.

A practical approach to the evaluation of bituminous mix properties for the structural design of asphalt pavements

Asphalt Paving Technol, 1988, 57, 484–501.

13.

Brown

S. F.

Brunton

J. M.

Improvements to sub-grade strain criterion

J. Transpn Engng Div., Am. Soc. Civ. Engrs, 1984, 110 (6), 551–567.

14.

Valkering

C. P.

Stapel

F. D. R.

The Shell pavement design method on a personal computer. In Proceedings of the Seventh International Conference on

The Structural Design of Asphalt Pavements, Nottingham, 1992, pp. 351–374.

15.

Monismith

C. L.

Inkabi

Freeme

C. R.

McLean

D. B.

A subsystem to predict rutting in asphalt concrete pavements. In Proceedings of the Fourth International Conference on

The Structural Design of Asphalt Pavements, Ann Arbor, Michigan, 1977, pp. 529–539.

16.

Thrower

E. N.

Methods of predicting deformation in road pavements. In Proceedings of the Fourth International Conference on

The Structural Design of Asphalt Pavements, Ann Arbor, Michigan, 1977, pp. 540–554.

17.

Collop

A. C.

Cebon

Hardy

M. S. A.

Viscoelastic approach to rutting in flexible pavements

J. Transpn engng Div., Am. Soc. Civ. Engrs, 1995, 121 (1), 82–92.

18.

Powell

W. D.

Polter

J. F.

Mayhew

H. C.

Nunn

M. E.

The structural design of bituminous roads. Report 1132, transport and Road Research Laboratory, Crowthorne, Berkshire, 1984.

Permanent deformation in idealized bituminous composites

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