Resources

Belgium is made up of 3 regions: the Region of Flanders, the Walloon Region and the Brussels Capital Region. Managing and maintaining the national trunk roads is a regional matter and therefore also carried out in Belgium by three different administrative authorities. Each of these administrative authorities has drawn up...

The need for constructing road pavements characterised by controllable technical performances, high durability and reduced construction and maintenance costs, led to the development of design criteria and procedures for the technical and economic appraisal of the pavements based on Life Cycle Cost Analysis (LCCA). New materials, new technologies and innovating...

High concrete pavement performance requires excellent concrete quality. One imp ortant factor guaranteeing this high quality is the proper selection of qualified cement. The use of blended cements is increasing more and more. Especially the market share of Portland composite cements (cement type CEM II according to EN 197-1) shows...

Application of steel fiber in concrete would increase modul of rapture (MR) and module of elasticity (E), which in turn decrease slab thickness in rigid pavements. Hence, damaging stresses due to thermal and moisture is reduced. Where as concrete mixes with Silica Fume (SF) would perform the same behavior with...

After the exploration of damages caused by alkali-silica reaction (ASR) on highway bridges in Turkey recently, the usage of reactive aggregate on highway construction was prohibited. However, this does not seem to be the proper solution, because natural aggregate leads to an increase in workability of concrete due to its...

About nine years ago, the Dutch Association of the Netherlands Cement industry (VNC) initiated indicative noise measurements on three new types of concrete roads. It was shown that exposed aggregate had a potential for further optimising. The Dutch Information and Technology Centre for Transport and Infrastructure (CROW) initiated in 1996...

The Zuidtangent is a free high quality public transport lane between the city of Haarlem and Schiphol Airpoprt. The full trajectoryi s built in continouusly reinforced concrete. In this paper some design aspects are described. Also the use of concrete as a wearing course on bridges and in tunnels is...

and to secure the height position of the individual slabs. They must be positioned in the middle of the slab thickness so that they do not prevent longitudinal motion of the slabs. In modern concrete pavement construction the concrete is poured over the entire cross section width using slip form...

New structural design software is presented that deals with flexible, composite and rigid structures. The pavement design is based on a trial-and-error process involving the use of the linear elastic multilayer model for flexible and composite pavements (Burmister's theory) and the strength of materials (Pasternak’s theory) for the rigid ones.

Recycling techniques to take profit of materials from existing pavements are being increasingly used, due to different technical, economical and ecological reasons. Therefore, the Technical Committee C7/8 on Pavements of PIARC (World Road Association) has prepared three guidelines dealing respectively with hot recycling in plant of bituminous mixt ures cold...

A greatly increased air void content in the hardened concrete has been found in recent years in some contract sections of concrete pavement. Investigations were carried out at the Research Institute of the Cement Industry on road concretes in order to determine the reason for this excessively high content. The...

Depending on the environmental conditions during casting and hardening, actual temperature and moisture gradients in concrete pavement induce strains. These strains lead to deflections of the slabs or, when restrained, to stresses and in some cases, mainly in combination with traffic loads, to cracks. Concrete with recycled concrete aggregate (RC-Concrete)...