Highways

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...

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...

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...

In Western Europe the demand for a crack-free structure is not uncommon. Due to environmental reasons more and more (concrete) structures are built to prevent toxic liquids from leakage trough the structure to the subsoil and groundwater. These structures can be found for instance in the chemical industry, petrol stations,...

Some physical test results available in the literature on Roller Compacted Concrete (RCC) were evaluated. Most of the physical properties of RCCs such as drying shrinkage, frost resistance, abrasion, and fatigue are similar to those of conventional concrete with the same water-cement ratio. Since RCC is a zero slump concrete...

The use of coloured exposed aggregate concrete in public spaces has made considerable progress in Belgium. As such, urban planners have become aware of the architectural value of this technique. The variety of shapes, colours and textures combined with the well-known advantages of concrete such as resistance and durability explain...

This paper describes the usage of concrete safety barrier on high speed roads in the UK, drawing on experiences gained over the 10 years since their introduction, and the enhancements and improvements developed in this time. The paper is primarily concerned with in-situ slipformed concrete safety barrier and comments on...

Roller concrete has been adopted from dam-building technology, where it is used as a rapidly constructed and durable solid concrete. In road construction, roller compacted concrete is predominantly used in foundations, as a supporting layer. For surfacing or as a layer of surfacing. Some applications in Belgium are discussed. This...

The property of abrasion resistance is the ability of a material to resist mechanical abrasion. This paper deals with different test methods, especially road wear simulators, requirements and influencing factors for wearresistant road surfacing concrete. The average annual daily traffic (ADT) adjusted for the proportion of traffic with studded tyres,...

In Mexico, since november of 1993 to september of 2002, a total of 3046 km of concrete pavement lanes are either in operation or construction, where 74% of them are built as new structure and the rest, 26 % has been used as reinforcement placed on an existing aphalt pavement....

Continuously reinforced concrete pavement (CRCP) structures are becoming more popular for high quality transport purposes and long lasting pavement solutions in The Netherlands. This increase raised the demand for practical guidelines, recommendations and standardisation with respect to design, construction details, the preparation of tender documents and construction. Up to now...

Design of pavements involves a study of paving materials their behavior under loads, climatic conditions & the under lying sub grade reaction. For the present study an attempt has been made to propose an alternative method of design of rigid pavements using NISA package. 2-D plane strain and axisymmetric solid...