Conf. Paper (EUPAVE)

Artificial paving blocks made with portland cement concrete are widespread in many countries. These paving blocks come in various designs such as Interlocking and Italian Flower, and they are produced in special machinery out of rather high quality concrete having about 50 MPa compressive strength. The reason for the concrete...

In this article a research program on performance-based durability design of concrete highway structures conducted at Wayne State University is presented. The relation between concrete durability and its soundness (freedom from cracking) is described. A measure of concrete soundness based on ultrasonic pulse velocity developed during this research that incorporates...

The surface (texture) of a concrete pavement has to endure the effects of traffic and the environmental load. At the Technical University of Munich, Institute for Materials and Structures the real stress from solvent, freezethaw and mechanical loads will be simulated in the laboratory as close as possible to practice...

The design of reinforced concrete pavements presents complex problems of modelling, owing to the marked nonlinearity of structural response of the reinforced concrete, of the foundation and the unilateral behaviour of the interaction between pavement and foundation. The external actions to which a road pavement is subjected are the result...

The section of the A6a motorway between Porte d'Orléans in Paris and the Wissous interchange (10 km to the sniith) wRr npened in April 1960 For 34 years, the carriageways of this motorway, which have had to stand "double TO" traffic (4000 heavy loads a day), and which consist of...

When crushing stones of different calibres, quarries produce a large amount of sand, referred to as crushed sand. This material is often considered as a by-product and its use is reserved for less noble applications than road foundation. However, when stabilised with cement, this sand has very interesting properties and...

This paper presents the partial results of a research on Rolled Compacted Concrete (RCC) which aimed at characterizing its fatigue behavior. The influence of cement content (120, 200 and 280 kg/rn 3 ), the mixture aggregate grading (fine, medium and coarse) and the compaction energy (normal Proctor, intermediary and modified)...

In concrete pavement placed during hot weather unfavourable Lelilpelatuies Lall causc high stresses and therefore the formation of cracks. In pavements which are placed in the morning of a hot summer day, after a few hours very high temperatures at the surface and still low temperatures at the bottom of...

The Spectral-Analysis-of-Surface-Waves (SASW) method is a non-destructive seismic method which has been used in situ to determine the elastic moduli of soils and pavements at low level of strain and the variation of these moduli with depth. The test is based on the dispersion of Rayleigh-waves which means that Rayleigh...

In the European Committee of Standardization (CEN) road simulators have been proposed as test equipment for determining the wear resistance of concrete road surfaces to studded winter tyres. The purpose of this ring analysis was to find what relationship there is between three Nordic road simulators and to produce proposals...

This paper presents transverse joint spalling models developcd for both jointed plain concrete pavements (JPCP) and jointed reinforced concrete pavements (JRCP). These models were developed as a part of a rigid pavement performance study (RIPPER) conducted by ERES Consultants, Inc. and sponsored by the U.S. Federal Highway Administration (FHWA). The...

When heavily trafficed concrete pavements are being renewed, the work generally has to be carried out under considerable time-pressure. A newly developed, high performance repair concrete is ideally suitable for such repair work on account of its high early and final strength as well as its durability. It is produced...