Conf. Paper (EUPAVE)

This paper concerns a joint research programme being undertaken by the Roads and Traffic Authority of New South Wales (Australia) and the Cement and Concrete Association of Australia. The objective of the research is to develop quieter concrete road surfaces, whilst maintaining acceptable skid resistance, by modifying the surface texture...

The paper discusses the role of non-destructive testing in pavement evaluation and the importance of bonding between its layers on back-calculated properties. Rigid composite pavement structures were analysed using the BISAR programme under different bonding coefficients (ks) between the asphalt and the concrete layers. The results indicate that: A small...

A cost comparison between different pavement types is based on the current value of the construction and maintenance costs and the annual costs of the road during its service life. A detailed technical-economic comparison between asphalt and concrete pavements should always be made when the ADT of the road >...

Fast track concrete pavement technology provides alternatives that can meet the public's demand for quick access to quality pavements. Fast track concrete pavement construction entails any method of accelerating construction. Some changes in tradicional use and consideration of certain aspects ot concrete pavement construction accompany fast track. However, fast track...

From 1991 to 1993 60 km of carriageway were reconstructed on the motorway Salzburg-Vienna, re-using the old concrete pavement 100% on the work-site. The fine material (0/4) that resulted when crushing the old pavement was added to the old granular subbase which without would have been too coarse-grained to be...

Changes in society are giving rise to growing objections to surfacing any more sand roads. These objections are provoked by the interest in the environment, countryside and cultural history. On the other hand, agricultural developmont calls for continued mechanization in order to reduce production costs. This means, among other things,...

C.R.C.P. Technology has been selected by SAPRR in France foz its overlay programme on the heavy traffic Highway A6 Paris/Lyon. This programme started in 1983 with deformed bars Fe E500 with a steellconcrete section ratio 0,67%. Considering the logistic and safety problems on

Aggregates were obtained from an alkali-silica damaged concrete road slab aggregates and used for road base concrete with different kinds of cement (low alkali cement, high alkali cement). After analysing the samples produced with these mixes, which were exposed for up to one year to different hardening conditions, no alkali-silika...

Since the overlay thickness must be decided considerinq the structural condition of the existing pavement, FWD was introduced to evaluate the mechanical properties and to obtain input data for the overlay design. In the case of concrete overlays for concrete pavements, the overlay thickness depends on the existing slab thickness...

For the time being the exposed aggregate technique is the cheapest way of building a rigid pavement with a surface that is noise reducing, skid resistant and durable. The technique requires the use of specially adapted payers, very good-natured retarders and a very efficient curing. Special combinations of surface retarders...

The design of jointed concrete pavement (JCP) using mechanistic-empirical concepts must incorporate a systems approach in considering material and traffic variability with respect to design and calibration in a mathematically consistent manner. Calibration procedures are necessary to insure the prerequisite accuracy in the design calculation and estImate of pavernelil. peIIuIIIIdlIlx....

This paper considers the role of whole life costing in the management process for the road network and explores the background to current interest in England. It describes the development of the computer model, COMPARE, for assessing the whole life costs of bituminous and concrete pavement options. The key components...