Conf. Paper (EUPAVE)

The task of calculating road pavements is an easy one. However, reaching the point of choosing a type of pavement one is confronted with many possible solutions. They can all meet to the technical terms, such as bearing capacity, safety and durability. The growing importance of sustainable building has added...

In this paper is given overview of mineral additives that are used to improve mechanical and durability properties of concrete used in concrete pavements. Use of mineral additives is possible in two different ways, as a cement additive during production and as a concrete additive during preparation. Mineral additives analyzed...

The technique of double-layered concrete or two-lift paving is applied either to obtain a high-quality top layer, to use lower quality materials in the lower lift, or for both reasons at the same time. In Europe this technique is commonly applied in Austria where a typical motorway is built with...

Congestion on German roads increases permanently from year to year. According to the latest prognosis an end to the traffic increase – especially with regard to heavy traffic – is not in sight. At the same time the Federal government, the German states and communities lack capital for new infrastructure...

The first continuous reinforced concrete pavement (CRCP) using steel bars as reinforcement in Canada was constructed in the province of Québec in 2000. At that time, Project Engineers and experts tried to adapt the design of this type of concrete pavement used in other countries to the severe wet-freeze climate...

Since the beginning of the development of concrete vehicle restraint systems in the 1960s with the introduction of the New Jersey profile in the United States quite a lot of efforts have been taken by researchers, authorities and industry worldwide to raise effectiveness and safety of concrete and steel barriers....

This paper reports research concerning the excavatability assessment of controlled low-strength materials for trenches with a pick, thanks to the proposal of a laboratory and a field test. Attention is specially focused on air-entrained mortars and very lean concretes. The scientific approach is first presented. Then details and results on...

A new methodology has been developed to design the concrete slab thickness by optimizing the slab size given the geometry of the truck axles, the design is based on an unbonded system with either granular, HMA, Stabilized or Concrete Base. The key principle of the design method is to configure...

Resistance to freeze-thaw cycles is an important factor for the durability of concrete roads and structures in an outdoor environment. In many European countries, current national standards for concrete exposed to frost are limited to the composition of the mixture: minimum cement content, maximum water-cement ratio, and in some cases...

The global warming of our planet has a special impact on urban areas, because large cities are characteristic for the development of so-called urban heat islands. This modification of the climate of a city in comparison to the climate of their hinterland is based on a multiplicity of factors like...

For decades, damaged asphalt or concrete pavements in the U.S. were repaired by applying the "whitetopping“ technique. This measure covers the damaged pavement with a new layer of a thickness between 15 and 25 cm, in order to re-establish its viability and safety to traffic. In a research project by...

The design of heavy duty pavements for ports and harbours is becoming an important concrete pavement application. This paper summarises Ove Arup & Partners’ experience in completing the design of heavy-duty container port pavements. The paper outlines a practical set of calculations complete with a standard, jointed unreinforced concrete (URC),...