Resources

Sponsored by the U.S. Department of Transportation, Federal Highway Administration, HIPERPAV (HIgh PERformance concrete PAVing) is a software tool capable of predicting the early-age behavior of concrete pavements. HIPERPAV successfully integrates materials, pavement design, climate, and construction operations into an easy to use Windows-based software package. Using a systems approach,...

Water-permeable paving is used to minimize the far-reaching adverse effects produced by sealing off the natural water balance. The risk of flooding during thunderstorms by water running off the surface or by overflow from sewer pipes is strongly reduced by the immediate absorption and subsequent storage of water in the...

The objective of the concrete pavement construction design of the main access streets to all Paranagua Port Terminals was to improve the traffic of trucks which transport goods being imported into and exported out of Brazil. Concrete pavement was the final engineering design chosen for this job due to the...

This work describes the activities developed in Mexico to improve the selection criteria for stone aggregates which are used in surface layers for concrete pavements. The experience has shown that the current mechanical resistance requirements for stone aggregates often do not assure an adequate behavior. In other words, the selection...

Thin white toppings (TWT), as originally developed in the USA in 1918, are in majority placed as an overlay on deteriorated asphalt pavements. Usual thicknesses were 150 – 225 mm but since the last 30 years also ultra thin white toppings (UTWT) with thicknesses of 75 – 150 mm are...

For several decades steel wire manufacturers produce steel fibres which can be mixed with concrete to improve its characteristics. FIBRICON® is a multi-fibre concrete – a combination of concrete and three types of fibres. The fibre mix consists of drawn or rolled steel fibres with profiled end hooks or anchors....

The advantages of prefabrication and precasting are well known in the building industry: a short building-time, efficient use of materials, optimum quality control, financially appealing and sophisticated logistics. In residential, commercial and industrial building in the Netherlands, the use of prefabrication is common practice. It would be logical to assume...

Since the late 80ies in the Netherlands more and more cross-sections are constructed as roundabouts in stead of a cross section with traffic-lights. The pavements and prefabricated elements suffer from heavy traffic-loads and lots of maintenance was required. Therefore the last years it is investigated how sustainable roundabouts could reduce...

Since 1988, the Florida Department of Transportation (FDOT) has been monitoring the performance of the first experimental Whitetopping project in Florida for possible implementation as an option for rehabilitation of rutted and cracked asphalt pavements. The project includes three major sections with thicknesses of 150 mm (6 in.), 175 mm...

The Guided Busway Design Handbook, produced in 2004 and the Guided Busway Construction Handbook (2006) are best practice guides to guideway construction. This paper describes development of the handbooks which drew on experience from across industry and lessons learnt from previous projects. Ongoing work since publication of the handbooks to...

The European Long-Life Pavement Group (ELLPAG) was formed in 2000 as a working group by the Forum of European National Highway Research Laboratories (FEHRL) members, under the auspices of the Conference of European Directors, to report the current state of knowledge on long-life pavements in Europe, in particular on the...

The paper presents the main findings of a 3-year project to develop new designs and specifications for continuously reinforced concrete pavement (CRCP). The performance and design parameters investigated were surface cracking, the concrete strength, and the foundation. The effects of these parameters on the structural integrity and durability of CRCP...