Conf. Paper (EUPAVE)

One of the most frequent ajid insidious distresses in Jointed Portland Cement Concrete Pavements (JPCCP) is the loss of pavement support near the joint. This problem is principally caused by a lack of maintenance ofjoint sealing that can give rise to the well-known phenomenon called pumping in the presence of...

On the European route E35 near Utrecht in the Netherlands a new highway section has been built. The authority in charge has chosen a continuously reinforced concrete roadbase. A monitoring program has been started to collect data from the pavement behaviour. The data will be used fnr rnmparing the chosen...

Ultra thin white topping is a rehabilitation technique in which thin concrete overlay is placed on asphalt pavement in distress, and this work technique has been under research in Europe, USA and other countries. In this study, a small model experiment was conducted to see its applicability to the roads...

There have been significant developments in concrete road pavement techniques in the past decade. To the traditional advantages of concrete pavements such as durability under heavy traffic and low maintenance cost have been added various other reasons for favouring them, such operational availability, aesthetics, architectural integration and contribution to a...

In the domain of road building, recycled aggregate made from old concrete road pavings has been used in the construction of new concrete pavings for quite some time. Generally only the coarse fractions of more than 4 or 2 mm, respectively, are used as recycled material. Most of the recycled...

The Netherlands are a flat country, where the bicycle is a good alternative for short and midrange transportation. The government tries to encourage the use of a bicycle by improving the bicycle infrastructure, thus trying to reduce movements by car. Bicycle pavements are managed at a local or county level....

ratios between 1.0 and 1.25 to achieve the proper performance of the slabs designed. It is clear that thickness of slabs has to be properly designed according to the operations foreseen for the term of use. In the case of rehabilitations by way of overlapped layer, this has rendered a...

The difficulty to build roads in heavy rain areas is illustrated through the reconstruction of the road going from Pasto (the capital of the Department of Nariño) to the port town of Tumaco, in the vely South of Colombia at the Pacific Cost and the border with Ecuador. Despite this...

The M20 motorway between Junctions 3 and 5 near Maidstone (UK) is an unreinforced pavement with joint spacings of 5m and 6m, comprising warping joints with contraction joints every 30m. The pavement was constructed at the beginning of the 1 970s. A contract for maintenance between Junctions 4 and 5...

Concrete, which has withstood all the loads on heavily used roads for many decades, can be used again as a concrete aggegrate in road pavement construction after undergoing appropriate treatment. The example of four pavement batches prepared by 2 different companies in 1992 and 1993 on the A27 motorway m...

Heavily trafficked concrete block pavements (CBP) require a proper designed cement treated base, which however i.g. offer only a low water permeability. Hence water may accumulate in the beddinq layer and under unfavourable climatic conditions frost heavings and deteriorations can occur. This can be prevented by a base course of...

This study was carried out to examine the correlation between roller compacted pavement concrete mixes and the compactability with surface vibrator. Two factors are significant for the consistency of the concrete: the sand/cement ratio of the mortar component by weight and the coarse aggregate/ mortar ratio by volume. The most...