In 2009 the Dutch Parliament amended special laws to speed up road widening projects. This situation opened possibilities for sustainable concrete pavements needing less maintenance, especially for the right-hand lane that takes the heavy traffic. This paper presents the results of a study carried out in 2009, by a working...
Evaluation of the Pavement Structure of Concrete Road Constructions Using the Falling Weight Deflectometer (FWD)
In view of increasing operation and maintenance requirements on existing concrete roads, it is im-portant to gain knowledge about their present bearing capacity. For this task, the Falling Weight Deflectometer (FWD) has proved to be of practical value for years in Germany and other countries worldwide. The FWD is a...
Pervious Concrete Pavement Performance in the Canadian Freeze-Thaw Climate
Pervious concrete pavement is a sustainable paving material that allows moisture to drain from the surface and naturally infiltrate into the subgrade. Pervious concrete pavement has been used consistently, with success, throughout the southern United States where freeze-thaw cycles are not common. Use of this valuable paving material in freeze-thaw...
Slag Usage in Concrete Pavement
One of the main problems faced by today's engineers is the lack of quality natural materials and accumulation of waste materials. Among the materials which are increasingly burdening landfills are industrial by-products. Slag is one of the common used industrial by-products and it can be used in all layers of...
A Bonded Concrete Overlay in An Urban Boulevard in Calvià (Mallorca, Spain)
The Boulevard of Peguera, placed in the municipality of Calviá (Mallorca, Spain), is the main commercial axis of the town and, for this reason, it supports an important traffic compared with other urban roads, around 100 heavy vehicles per day. At the beginning of 2008, the Council of Calviá proposed...
Concrete Pavements in the Province of Almeria the Experience of the Diputación De Almería
The Diputación de Almería has approved biannual plans to improve agricultural and rural tracks and roads in the region, which are financed by, in addition to the Diputación de Almería, also by the European Union, the Junta de Andalucía and the municipalities in the zone. Improving these trails in general...
Safety and Durability of Pedestrian Precast Concrete Pavements
The National Precast Concrete Association, the Official Laboratory of the Mining University School of Madrid through the Gomez Pardo Foundation and a group of Spanish manufactures of terrazzo tiles, with the collaboration of the Spanish Ministry of Industry, Tourism and Trade have developed a research project to find and test...
Research on Frost Damage of Concrete for Pavements with Ordinary Portland Cement and Portland Fly-Ash Cement
Due to severe freeze thaw salt damage to concrete pavements on military airfields in the Netherlands, the Agency for Infrastructure of the Netherlands Ministry of Defence (DGW&T) decided to prescribe ordinary Portland cement (CEM I 32.5R, coded as PC) with air entrainer. The ENCI (First Dutch Cement Industry) is of...
White Topping Assessment of Asphalt Concrete Interfaces
For the rehabilitation of rutted asphalt pavements white topping and ultra thin white topping turned out to be adequate methods. The force-fit bonding between asphalt and concrete is a pre-condition for the functioning and durability of this method. Little attention is paid on testing of the bonding; in the majority...
Concrete Pavement Without Dowel Bars
The joint system presented herein takes advantage of the natural development of shrinkage in concrete to induce the formation of joints along the projections of previously placed system devices. Such system induces in an in-situ concrete pavement an efficient interlocking indentation among the slab elements resulting from the shrinkage phenomenon....
Implementation Aspects of the Steenokkerzeel Bypass Road
Early in 2005 the Steenokkerzeel bypass road was opened for traffic. This road forms a type of ring road around Steenokkerzeel centre. This new road was linked to the centre via roundabouts in two places. The bypass road as well as both roundabouts were laid in continuously reinforced concrete, the...
Austrian Experience with Concrete Pavement Design and Construction of Highly Trafficked Roundabouts
Design and construction of road intersections in the form of roundabouts is getting more and more popular not only in urban areas but also on highly trafficked primary rural roads due to their high road safety potential. Well designed roundabouts show improved safety characteristics by reducing the number and, particularly,...