Resources

In this paper the results of laboratory investigation preceding realization of continuous prestressed concrete pavement at Krakow – Balice Airport are presented. Three concrete slabs of dimentions 1.0 m × 3.6 m × 0.16 m were realized in the Laboratory of Technological University of Krakow. Two of them were prestressed...

The paper presents the analysis of the numerical model of airport slab and foundation under thermal loading. Various types of constrain (unilateral and bilateral) between slab and foundation have been taken into consideration. Numerical data has been compared with experimental results, concerning vertical displacements of airfield plate subjected to the...

A number of public road laboratories are working together in an OECD/ECMT project. The aim of this project is to evaluate two technical solutions for long-life wearing courses. It is intended that these would eliminate maintenance works for several decades after construction. One of which, called HPCM (High-Performance Cementitious Material)...

The High Plateau (known as Altiplano) in Bolivia has unique climate. The high altitude, over 4000 m above sea level, relative humidity, as low as 20% and daily temperature ranges between 25° C max. day down to – 10°C at night during winter time, impose special construction processes for concreting...

The skid resistance of a road surface is of high importance for road safety. All kinds of controllable acceleration, deceleration and steering actions are only possible, if the road surface offers at least the same adhesion as the driver’s action requires. It gets even more difficult due to the fact...

A Removable Urban Pavement (RUP) is a pavement that can be open and closed rapidly, with light facility, for an easy access to underground networks. It has the same difference with a conventional road as a window compared to a solid wall. No such a pavement seems to have ever...

Shonan Ohashi Bridge that is on Route 134 is a steel box girder bridge of 530m in length. Six years ago, fatigue cracks were found at the welding tips of bottom deck plates. After the full inspection of the asphalt pavement and steel deck bridge, it was found that the...

Skid resistance of a pavement surface is important for safety. Therefore the surface of a concrete pavement must have a roughness suitable for a high skid resistance but also for a low noise emission. These surface properties must be as durable as possible. In Germany there are various possible ways...

Drainage concrete on the base of cement with BD10 admixture was analyzed in our research. The paper presents components of mixture, experimental results of thaw and freezing tests and compression strength for drainage concrete. The specimens were fabricated in Poznan University of Technology laboratory. All specimens were prepared as drainage...

In this paper a new design method of plain concrete pavements without bond to the subgrade is presented. For the first time, stresses resulting from environmental conditions will be considered in a realistic way in addition to stresses due to live loads. The basis of this new design method is...

In 2004 the pavement of the Inntal-highway from the interchange Inntal to the border at Kieferfelden was reconstructed from km 11 to km 22 using a Functional Contract. For Functional Contracts the quality of the construction work is defined by the view of the road users. The expectations of the...

Roller compacted concrete as a pavement material has been gaining acceptance over the past years. RCC can be of particular interest in base course applications combing attractive cost with easiness of construction. RCC is a friendly pavement material to incorporate by-products of industries such as bottom coal ash. This paper...