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...
Imprinted Concrete Installations in Brussels
Over the past years, consideration was given to the damage some streets were exhibiting which had been constructed from porphyre cobblestones paving or concrete block paving. The director of the street accomodation for the region of Brussels took the decision to replace those damaged areas with an Imprinted Concrete Paving...
Concrete Pavements on Bridges and in Tunnels
In Austria, concrete pavement construction has a tradition of several decades and the technology used is regarded as mature. Nonetheless, improvements are required on a continuous basis. The sharp increase in heavy traffic, higher emission levels, including in particular noise emissions, as well as economic considerations taking into account the...
Modieslab Innovative Prefabricated Modular Concrete Slab For Concrete Roads and Airfields
The Dutch Federal Highway Administration introduced the project Roads to the Future in the year 2000. Amongst other innovations, the MODULAR ROAD, was one of the sub-projects. In a contest several parties in the roudbuilding business were asked to develop an idea for a modular type of road that had...
The Structural Properties of Optimised Exposed Aggregate Concrete in the Netherlands
Indicative research on three new types of concrete roads by the Dutch Association of the Netherlands Cement Industry (VNC) in 1993 had shown that a concrete surface of exposed aggregates could be further optimised with respect to traffic noise reduction. In 1996, the Dutch Information and Technology Centre for Transport...
Road Roughness and Its Effects on the Infrastructure Caused by Dynamic Wheel Loads
The intention of this paper is to shed light on the interaction between road roughness and the resulting road damage caused by static and dynamic wheel forces. For this purpose several trucks have been mathematically modeled as multi-body systems in great detail. The models are based on actual data of...
From the Road To the Railway Urban Transportation Trackdim Transposition of a Calculation Method
Alstom who is a major company in the turnkey railways construction activity including railways track construction, developed an adaptation of roads and highways calculation modelization based on concrete fatigue resistance under traffic loads to for railways tracks calculation purpose. Roads and highways have a long and rich experience and data...
Considerations on Consistency Test and Properties of Porous Concrete for Pavement
The porous concrete surface and sub-base for pavements is required higher coefficient of permeability than 0.01cm/sec and higher bending strength than 3 or 4.5 N/mm2. In order to obtain workability and these qualities, suitable methods for testing consistency was investigated. It was possible to judge the consistency for quality control...
Introduction of a Laboratory-Based Mix Design Method for Roller Compacted Concrete Pavements in El Salvador
This paper presents a laboratory-based mix design method for roller compacted concrete pavements for optimizing their cost-performance. It consists in introducing a new design procedure based on laboratory tests for aggregates, sand/gravel ratio, cement/water ratio, cement content, and resistance of the specimens to compression and flexion, in order to establish...
Manufacture and Use of Precast Elements for the Construction of Traffic Calming Devices
In recent years, the proliferation of safety devices, the absence of legislation in the matter and the problems encountered in terms of the stability, efficiency and durability of these devices have resulted in the experimental manufacture of precast elements for the construction of road humps and plateaus. At the current...
The Usage of Concrete Barriers for Modern Road Design and Efficient Construction Site Management in Europe
Safety barriers are an essential device on roads, especially on highways. The European Standard EN 1317 defines the requirements of different safety levels that safety barriers have to comply with. Precast concrete and slipformed/cast-in-situ barriers are very successfully used as permanent barrier. Additionally precast barriers are a perfect solution for...
Inlay in Continuous Reinforced Concrete on the A10 Brussels – Oostende at Ternat
Between September and November 2002, an inlay in continuous reinforced concrete was constructed on the A10 motorway between Groot-Bijgaarden and Ternat. The main components of the section of road are concrete slabs that are overlaid with asphalt surfacing. The work was performed in the shortest possible period, during which the...