Conf. Paper (EUPAVE)

The recently developed porous concrete techniques have been tried to apply to not only full-depth concrete pavements for new roads, but also thin bonded concrete overlay for rehabilitation works in Japan. This paper shows their performances as well as their designs and constructions.

The present study concerns the comparison of the behaviour at high temperature of an asphalt and that of concrete, the purpose being to define the parameters of choice of the material for the construction of roads, in particular in tunnels. To do this, laboratory tests of fire, thermal behaviour and...

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...

The state of the art of pavement recycling with cement in Spain is presented in this paper. The different reasons (technical, economical, and environmental) favouring this technique will be reported. Moreover, information will be provided on projects (traffic categories, material prescriptions and structural sections included in Spanish specifications), the construction...

During recent years studies have reported the crises involving deficiency or deterioration of a considerable portion of the Nation infrastructure. Many concrete structures need repair and strengthening for several reasons, such as expired design life, changes in functionality, damage caused by mechanical actions and environmental effects, more stringent design requirements,...

Continuously reinforced concrete pavements (CRCPs), when proper design and construction guidelines are followed, may allow more than thirty million equivalent single axle load application as observed at existing CRCP sections in the United States of America. Otherwise, the CRCP may prematurely fail and require costly maintenance earlier than anticipated. In...

The dynamic response of highway bridges subjected to moving truckloads is observed to be dependent on dynamic characteristics of the bridge, vehicle dynamics, and road surface roughness profile. Road roughness and the bump at bridge entrance between bridge and concrete approach slabs are the major contributors to the dynamic amplification...

World practice (USA, Germany) has already noted the cases of continuous cracking of the surface layers of cement concrete pavements. Continuous cracking becomes evident several years later after completing construction and results, as a rule, in deterioration of the performance characteristics of the pavements. The paper shows the results of...

The strength development and permeability properties of two concretes prepared with natural pozzolanic cements, Trass Cement (TC) and Blended Cement (BC), were investigated and compared with those of an Ordinary Portland Cement (PC) concrete under varying water-curing periods. The mix design of concretes was made with an equal strength base...

Traffic-noise pollution has become an issue for many road authorities. Applying measures at the source i.e. interaction surface and wheel are an effective noise abatement measure and many quiet surfaces have been developed in the last decade. A relative silent surfacing is a concrete surface of exposed aggregates. The Dutch...

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...

In 1996 a new pavement structure was launched in France under the name « Béton de Ciment Mince Collé (thin composite whitetopping) », BCMC. This technique was an adaptation of the Ultra Thin Whitetopping (UTW) developed in the USA since 1990. But while in the USA this technique was mainly...