The Use of Roller Compacted Concrete for Roads

Regarding its use for pavements, roller compacted concrete (RCC), could be considered as a hybrid between cement treated granular material and vibrated concrete. Indeed, RCC pavements can carry traffic directly on the finished surface, a possibility not offered by cement treated bases. Its simple implementation, easy construction, reduced labour requirements and high production rates result in considerable savings in comparison with other alternatives. Moreover, and considering their use for [...]

Evaluation and maintenance of concrete pavements

The road asset of a country or region is of considerable value. Owners who have chosen to invest in concrete pavements for all or part of their road network or their airfields have often done so hoping to obtain a lasting infrastructure and a guarantee of maintaining traffic in all weather conditions. This crucial objective is sought after for the most strategic roads and runways of the transport infrastructure. This report is a source of information and consideration for owners of road, motorway [...]

CD-7802 - Pavement Recycling (Guidelines)

This document, realised by the PIARC Technical Committee on Road Pavements (C7/8), is avaible only on CD-ROM. It contains three different guidelines: cold in place recycling of pavements with cement, cold in place recycling of pavements with bitumen emulsion or foamed bitumen, and hot mix asphalt recycling in plant. After a general introduction the three techniques will be discussed. This document is not intended as a specification document or to be a state of the art report. Its [...]

International Experiment to Harmonise Longitudinal and transverse Profile Measurement and Reporting Procedures

In 1998, the PIARC committee C1 on Surface Characteristics carried out a worldwide experiment to investigate the performance of different high speed profiling equipment. The design of the different pieces of equipment clearly reflects the policy of what is considered sufficient information (in the different countries) when measuring longitudinal and transverse profiles. The results of this PIARC experiment will therefore be a primary tool for road administrations around the world to pinpoint [...]

Recycling of Existing Flexible Pavements

The use of non-renewable resources, and the disposal of materials as waste, recycling of materials is an increasingly important consideration in meeting the overall objective of sustainable development. This objective, together with economic considerations, contribute to a political climate where the intention is to achieve a closed-cycle by recycling and reusing materials from existing pavements. The optimum situation is when the recycling can be justified economically. Until this is achieved, [...]