Design

Durability, the absence of deformations and a low level of maintenance when the road structure has been correctly designed and implemented are the features which are generally unanimously approved as regards the qualities of cement concrete surfacing. In contrast, comfort and driving noise are the characteristics which lead to the...

Pavements on bridges are a very problematic element for each road administration. Classic European solution, concrete bridge deck with waterproofing membrane and pavement with asphalt wearing course, makes a lot of problems with maintenance, road closures etc. The paper presents results of research in the field of concrete pavements on...

A recently finished study at the Research Institute of the Association of the Austrian Cement Industry and the Institute for Road Construction and Maintenance, Technical University Vienna focuses on the improvement of the joint design on concrete roads. The main issues of this study are presented in this paper. Special...

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...

The needs of road managers cover a number of sometimes conflicting aspects, which have to be reconciled. These relate to the durability of the works, their flexibility of use and reuse, their ease of maintenance and of course their long term cost. They also relate to the safety of the...

The use of high performance concrete (HPC) is becoming more popular in the United States. Many State Departments of Transportation are replacing conventional concrete especially with HPC bridge decks. Despite the growing popularity of the material, little is known on the effect of the available curing methods on the mechanical...

For the last ten years, new composite pavement structures have raised a significant interest. Based on the association of a concrete layer bonded to an asphalt sub-base, they lead to a reduction of the layers thickness and cost. A long-lasting bond is essential. This paper focuses on the mechanical study...

In the period 1996 — 2001 the ”Zuidtangent" was designed and constructed. The "Zuidtangent" is situated between Haarlem and Amstelveen, just south of Amsterdam (The Netherlands). The "Zuidtangent" is designed as a special purpose road connection for public transport and plays a major role in the accessibility of the Schiphol...

A comparison of "capital plus maintenance" costs has been made in France using the following methodology: - firstly, a comparison of sections of concrete pavement with conventionally constructed ones of the same age on the same stretch of road, - secondly, a statistical analysis of the performance of the different...

Experimental and theoretical investigations on deformations and stresses in concrete pavements subjected to realistic weathering conditions have been carried out. On large-size concrete slabs critical hygral and thermal loadings with boundary conditions corresponding to different field situations were simulated. The results of the experiments served to calibrate and to verify...