Conf. Paper (EUPAVE)

? The behaviour of the cement treated bases was more performant than the "foreseen one for the effective" regulatory scheme, while the one of the ballast was adjusted to this forecast. ? The behaviour of the materials with recycled aggregates was similar to the natural ones regarding their measurements achieved...

Prescriptions for concrete pavements issued by the Spanish Road Administration are included in two types of documents: the Standard for Structural Sections of Pavements (6.1 – IC) and the Specifications for Road and Bridge Works (PG 3). These documents were updated considering the latest advances in materials, construction processes and...

Today, less than 15% of the National Highway System in the United States is comprised of concrete pavement (FHWA, 2007). However, in 1956, at the beginning of the interstate era, the vast majority of primary US routes were concrete roads. Why this significant change in pavement type selected? This paper...

As a general feedback of most studies and site experiments, the lower the maximum size of aggregate, the lower the rolling noise for exposed aggregate concrete roads. Yet, a small size of aggregate increases the cement demand, and by the way the unit cost of concrete. This is a supplementary...

A continuously reinforced concrete pavement (CRCP) was opened to traffic in 1976 in the North of Spain. It is located in a 43 km long motorway. Each carriageway is 12,00 m wide (concrete pavement is 8.00 m wide). The top layer is a 22 cm thick CRCP. Longitudinal reinforcement consists...

Polish Cement Association has been promoting roads with concrete pavement for ten-odd years. Providing local authorities with information on advantages of the concrete local roads is a very important field of action. Consistent organisation of conferences and seminars, publication of books and brochures have given measurable effects. In the past...

The Federal Aviation Administration’s (FAA) National Airport Pavement Test Facility (NAPTF) is located at the William J. Hughes Technical Center, Atlantic City International Airport, New Jersey. The primary objective of the tests performed at the NAPTF is to generate full-scale pavement performance and response data for development and verification of...

The method of constructing bright concrete Pavements with dark aggregates presents a variety of advantages; an essential benefit is the brightness of concrete pavements compared to bituminous pavements, because brighter street surfaces affect positively the safety of the road users. Above all, bright concrete surfaces provide an increase in safety...

As an example of Spanish experience in the design of long-life pavements, this paper is going to examine the above-mentioned construction project for a stretch of motorway with a pavement of exposed aggregateexposed aggregate concrete. The cross-section of the pavement comprises: - 23 cm of HF 4.5 (concrete with a...

Work such as: buildings, roads, bridges, tunnels and slope coverings – amongst others, require great amounts of natural materials for their construction. The excessive use of these materials has caused diminishment of the sources that produce them. Additionally, reconstruction, keeping and improvement of works produce great amount of waste materials....

The Ecoparc des Cettons is a sustainable business park. Designed to favour regional economic development and to boost employment in a loop of the Seine River 25 kilometres from Paris, authorities deliberately opted for an innovative approach complying with the environment including mainly: - the use of alternative techniques for...

During intensive investigation programme carried out on 90 km of newly constructed motorway with sections of jointed plain concrete pavements (JPCP) with dowels and continuously reinforced concrete pavement (CRCP) a number of different non-destructive tests were carried out before and within first year of their operation. Among others the deflection...