Design

Halfway through 1996, six different wearing courses were casted over a length of 3 km on the N255 Edingeri-Ninovc at Ilcrnc and Gaimaarden. 4 Different wearing courses each 4 cm thick, were casted on a continuously reinforced concrete pavement. In addition to the conventional wearing courses SMA 0/14 and ZOAB...

Within the scope of a research project different block pavings have been studied under realistic load of a road test machine considering the influence on the resistance to vertical deformations and horizontal displacements.

This paper describes design solutions of the concrete pavements from Macau International Airport, including runway, taxiways and apron. Aspects about the execution and results from quality control are also presented, within the scope of activities made by LECM (Macau Civil Engineering Laboratory) in this project, as a quality assurance agent...

Hot desert environments with low humidity and strong winds provide some of the most difficult conditions in which to build good concrete roads. This paper briefly describes the materials, plant and some of the methods that were used to successfully construct the Azraq to Jafr highway in Jordan where these...

Extensive rutting exists on many high volume traffic roads in Sweden. Traditional maintenance means asphalt resurfacing every second or third year. Adding a thin high strength concrete overlay would prolong the service life of the repair due to the high wear resistance of this kind of overlay. To study the...

The utilization of tarbearing scarified road materials, which are charged with phenols and polycyclic aromatic hydrocarbon (PAH) to a considerable extent, is becoming a problem of increasing urgency in Germany. This paper deals with the consolidation of tarbearing scarified road materials with a special hydraulic binder, which due to its...

In the mechanistic design method of concrete pavements, the flexural fatigue properties have a great influence when analysing the design life. Accordingly, the purpose of this study is to clarify the effects of stress ratio (YmIn/cmax), maximum size of coarse aggregate and static flexural strength of the pavement concrete on...

Due to the planning and construction of new high speed railways, the development and testing of the ballastless tracks, which started in Germany in the seventies, is now turning up again. The use of this almost mairitenailce free structure requires the assessment of the multi-layer system. For the slab track...

From 1990 to 1992 exposed aggregate concrete was used for the construction of 14 sections of Austrian motorways. This technology offers a noise reduction and a higher level of skid resistance. In order to evaluate the skid resistance of these surfaces in comparison to others, measurements were carried out in...

In comparison with Germany and Belgium, the Netherlands only have a small amount of cement concrete roads. Asphalt is a Dutch tradition. However, the idea of building concrete roads is slowly coming back into favour. A broadly based Steering Group is investigating how and where cement concrete can be used...

This paper examines cement concrete pavements built on japanese national highways since 1971. An investigation of pavement cracks supports the validity of the current structural design methods. The results of the analysis of the relationship between slab thickness, cracking and cumulative heavy traffic volume show that commonly used jointed reinforced...

In 1991 a concrete rut filling on an old concrete pavement at the highway E-1 8 in the southern part of Norway was performed. The rut depth, caused by studded tyres, had reached 23 mm, and the pavement required rehabilitation of the ruts. The intention with the filling was to...