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...
Investigation of Maintenance Needs For In-Service Concrete Pavements
Given the large number of concrete pavements that have performed well over time and lived up to prior expectations, as well as the knowledge that is now available regarding the reasons for failure in certain concrete constructions, it should be possible to carry out an evaluation of these pavement types....
Test Sections of Rigid and Flexible Pavements
The number of heavy vehicles in the Swedish road network is continuing to grow, and more rigid types of pavements are being used to withstand the loads. During the 1980s only asphalt pavements were used in Sweden and damage occurred on many roads with large traffic volumes. The Swedish National...
Joints in Concrete Roads
Concrete has been used as a construction material for road pavements for many years. Over the last 40 years, the world has seen a major program of motorway and trunk road constructions. The increase in the amount and individual weight of vehicular traffic has made increasing demands on the performance...
Determination of a Dedicated Concrete Pavement Network Using Probabilistic Life-Cycle Cost Analysis
In 2001, the Québec Ministry of Transportation (MTQ), in Canada, adopted a policy subdividing the existing pavement network into dedicated concrete and asphalt networks. This paper presents the methodology used for determining these respective dedicated networks using probabilistic Life Cycle Cost Analysis (LCCA). Sixteen (16) different combinations of Average Annual...