Water In Pavements - WIP'05

October 27th, 2005, Madrid, Spain

Scope

A one-day workshop took place in Madrid covering many aspects of water in pavements. It was part of the dissemination activities of the COST351 European Action on Water Movements in Road pavements and Embankments. It began with a presentation by the chairman of the Action (Mr Andrew Dawson of the University of Nottingham) which you can download here. In particular the workshop addressed:

Water contents observed in bound and unbound pavement material layers and in the subgrade.
The impact water content has on the mechanical properties of these materials.
Coupled hydro-mechanical modelling of pavement materials.
How and where the water moves in the pavement and subgrade.
Subsurface drainage methods and systems.
Use of soakaways, swales and porous sub-surface layers for storing and dissipation pavement runoff.
The quality of sub-surface water - is it polluted by water infiltrating from the surface or by leaching from pavement materials?
Predicting water movements and water content.

Papers & Presentations

Three keynote papers and 9 other papers were presented and are listed below. They have been printed in a pre-publication booklet and are available on a CD. Please contact CEDEX, the Workshop host, to enquire about availability.

A selection of the papers will be editted and supplemented, then published as a special issue of the International Journal of Road materials and Pavement Design (published by Hermes).

PERFORMANCE RELATED PROPERTIES OF THE PAVEMENT AND SUBGRADE MATERIAL

KEYNOTE: Incorporation of environmental effects in pavement design - M.W. Witczak, W.N. Houston, C.E. Zapata & D. Andrei, USA

Chemistry, suction and temperature - a unified constitutive mechanical model - F. Collin, L. Laloui & R. Charlier, SWITZERLAND

Prediction of permanent deformations of unbound granular materials, in relation with the moisture content - P. Hornych, C. Chazallon, A. Elabd & A. Fatima, FRANCE

Influence of moisture changes in subgrade performance - J. Baena & R. Romero, SPAIN

MODELLING AND MONITORING OF WATER FLOW AND MOISTURE WITHIN PAVEMENTS AND SUBGRADES

KEYNOTE: Design, construction & maintenance of subsurface drainage systems: a Spanish perspective - A. Parrilla, SPAIN

Predicting moisture movement under pavement systems - Y.Y. Perera, C.E. Zapata, W. N. Houston, USA

Hydraulic aspects of block pavements: development of a hydraulic model for the water and particle movement in street layer course under pavements - P. Ampe, J. De Corte & G. Delepeleire, BELGIUM

Measuring, predicting and specifying moisture in granular pavements with thin surface seals - B. Vuong, AUSTRALIA

Drainage in reality - a survey of practising engineers in the UK - A. Dawson & P. Boothroyd, UK

ENVIROMENTAL ASPECTS

KEYNOTE: Contribution of fluxes within the pavement and embankment to the overall road enviromental pollution - Michel Legret, FRANCE

Modeling hydrology and reactive transport in roads: the effect of cracks,the edge, and contaminant properties - D. Apul, K. Gardner & T. Eighmy, USA

Effects of Average Daily Traffic, Overlay Date, and Pavement Conditions on Highway Runoff Metal Concentrations - L.E. Miller, D. Apul, USA