Computation of rigid pavement stiffnesses using surface deflections from the Falling Weight Deflectometer

John Karadelis; B.P. Hughes

Computation of rigid pavement stiffnesses using surface deflections from the Falling Weight Deflectometer

School of Energy, Construction and Environment

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

Abstract

The Falling Weight Deflectometer (FWD) non-destructive testing technique has been used to monitor and assess the behaviour and performance of rigid pavement systems. In addition to the full scale site investigation, tests were also carried out with the aid of a specifically developed laboratory scaled model of the FWD.
A rigorous finite element model was developed to analyse a multi-layered pavement system with various material and geometric properties and to relate the surface deflections as measured to the computed values. Evidence of non-linearity and deviation from the classical linear elastic theory led to a more complex mathematical solution to fit the experimental data more accurately. The laboratory and field tests were compared with the computed values. The paper includes extensive discussion of these results and the conclusions drawn from them.

Original language	English
Title of host publication	Proceedings, Concrete Communication Conference 98, The 8th BCA Conference on Higher Education and the Concrete Industry
Place of Publication	Century House, Telford Avenue, Crowthorn, Berkshire, RG45 6YS
Publisher	British Cement Association
Pages	87-101
Number of pages	14
Volume	1
Edition	1998
ISBN (Print)	ISBN: 0 7210 1540 9
Publication status	Published - 9 Jul 1998
Event	Concrete Communication Conference 98, The 8th BCA Annual Conference on Higher Education and Concrete Industry, - Southampton, United Kingdom Duration: 9 Jul 1998 → 10 Jul 1998 Conference number: 8

Conference

Conference	Concrete Communication Conference 98, The 8th BCA Annual Conference on Higher Education and Concrete Industry,
Country/Territory	United Kingdom
City	Southampton
Period	9/07/98 → 10/07/98

Keywords

Stiffness
deflection
rigid-pavements

Cite this

Computation of rigid pavement stiffnesses using surface deflections from the Falling Weight Deflectometer. / Karadelis, John; Hughes, B.P.

Proceedings, Concrete Communication Conference 98, The 8th BCA Conference on Higher Education and the Concrete Industry. Vol. 1 1998. ed. Century House, Telford Avenue, Crowthorn, Berkshire, RG45 6YS : British Cement Association, 1998. p. 87-101.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

Karadelis, J & Hughes, BP 1998, Computation of rigid pavement stiffnesses using surface deflections from the Falling Weight Deflectometer. in Proceedings, Concrete Communication Conference 98, The 8th BCA Conference on Higher Education and the Concrete Industry. 1998 edn, vol. 1, British Cement Association, Century House, Telford Avenue, Crowthorn, Berkshire, RG45 6YS, pp. 87-101, Concrete Communication Conference 98, The 8th BCA Annual Conference on Higher Education and Concrete Industry, Southampton, United Kingdom, 9/07/98.

Karadelis J, Hughes BP. Computation of rigid pavement stiffnesses using surface deflections from the Falling Weight Deflectometer. In Proceedings, Concrete Communication Conference 98, The 8th BCA Conference on Higher Education and the Concrete Industry. 1998 ed. Vol. 1. Century House, Telford Avenue, Crowthorn, Berkshire, RG45 6YS: British Cement Association. 1998. p. 87-101

Karadelis, John ; Hughes, B.P. / Computation of rigid pavement stiffnesses using surface deflections from the Falling Weight Deflectometer. Proceedings, Concrete Communication Conference 98, The 8th BCA Conference on Higher Education and the Concrete Industry. Vol. 1 1998. ed. Century House, Telford Avenue, Crowthorn, Berkshire, RG45 6YS : British Cement Association, 1998. pp. 87-101

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N2 - The Falling Weight Deflectometer (FWD) non-destructive testing technique has been used to monitor and assess the behaviour and performance of rigid pavement systems. In addition to the full scale site investigation, tests were also carried out with the aid of a specifically developed laboratory scaled model of the FWD.A rigorous finite element model was developed to analyse a multi-layered pavement system with various material and geometric properties and to relate the surface deflections as measured to the computed values. Evidence of non-linearity and deviation from the classical linear elastic theory led to a more complex mathematical solution to fit the experimental data more accurately. The laboratory and field tests were compared with the computed values. The paper includes extensive discussion of these results and the conclusions drawn from them.

AB - The Falling Weight Deflectometer (FWD) non-destructive testing technique has been used to monitor and assess the behaviour and performance of rigid pavement systems. In addition to the full scale site investigation, tests were also carried out with the aid of a specifically developed laboratory scaled model of the FWD.A rigorous finite element model was developed to analyse a multi-layered pavement system with various material and geometric properties and to relate the surface deflections as measured to the computed values. Evidence of non-linearity and deviation from the classical linear elastic theory led to a more complex mathematical solution to fit the experimental data more accurately. The laboratory and field tests were compared with the computed values. The paper includes extensive discussion of these results and the conclusions drawn from them.

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PB - British Cement Association

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Y2 - 9 July 1998 through 10 July 1998

ER -

Computation of rigid pavement stiffnesses using surface deflections from the Falling Weight Deflectometer

Abstract

Conference

Keywords

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