The construction of concrete pavements is associated with various requirements to be fulfilled, e.g.: full-width construction stripwise construction, but extending over the full width ) e.g., construction of new cancrete roads addition of traffic lanes to existing carriageways ) e.g., on roads in use by traffic renewal of traffic lanes...
Joint design for concrete pavement on cement stabilized base at Zürich airport
On the concrete pavements of the runways 14 - 32 and 16 - 34, built in 1975 and 1976, cracks developed along the tongue-and-groove longitudinal joints. Investigations into the service conditions of the joints showed that they were overstressed unde r extreme loads and that damage to them could be...
Non-destructive testing of motorway concrete pavements
The standard of serviceability of road pavements can be expressed in terms of safety for the user (skidding res is tance, riding quali ty). For highway managers a standard of structural serviceability is essential for optimizing the initial constructional expenditure and for predicting ~he time schedule for maintenance, strengthening or...
State of the art of concrete safety barriers
In 1976 the ~ew Jerey concrete safety barrier and the experience gained internationally with it was for the first time brought to the attention of interested persons in highway authorities, research and industry in the Federal Republic of Germany. Four years later, the first pilot projects were implemeneed in this...
Development of the technological concept for roadbases made of hydraulic bound granular materials in the Federal Republic of Germany
A number of research projects relating to the cementbound sub-base (CBSB) are currently in progress in the Federal Republic of Germany. Their object is to develop an optimized technological approach with a view to further improvement and even greater economy in the use of this well proven form of construction....
Strengthening with concrete on the Nationale 6 in the Yonne County
For the "Nationale 6" thickening between Auxerre and Cravant, the concrete pavement solution, in competition with traditional techniques, is particularly interesting on the economic point of view and held the Head District Equipment attention in agreement with the French Road Management. The strenghening technique consisted in implementing by 4 m...
A continuously reinforced concrete pavement (0.35 m thick) for the steel mill Sidmar in Belgium
The project consists of the construction of a continuously reinforced steel slag concrete pavement (0.35 m thick) on a base course of slag sand-bound granular material (0.85 m thick). The road (area 8,000 m2, width 10 and 17 m) has to lenable the transportation of hot (800 0 C) steel...
Slab behaviour of plain undoweled concrete pavements
The behaviour of plain concrete slabs, belonging to pavements with no dowels through transversal Jo~nts, is described. The slab behaviour is observed by means of field instrumentation, measuring absolute deflections produced by environment variations (temperature and moisture), by support rigidity variations and by a controled axle load. Deformations are measured...
Use of residues from the incineration of domestic wastes and other residual matters mixed with cement in road construction
The incineration of household refuse in the Federal Republic of Germany yields up to about 3.5 million tonnes of residual waste per year. About 90% of this consists of grate ash and about 10% of fly-ash, the latter mostly being collected in electrostatic precipitators. The grate ash consists chiefly of...