Abstract
According to the European Asphalt Pavement Association, more than 90 per cent of the European road network is paved with asphalt. Constantly increasing traffic volume and climate change accelerate deterioration of current pavements. As a result, there arises a need to rehabilitate them prematurely. Repair and rehabilitation work lead to traffic congestion, which is one of the most significant concerns in highly trafficked roads and urban streets. Concrete modular pavements consisting of precast concrete slabs are a reasonable solution to deal with the road works since their construction, as well as repair, is time-saving. Repair works typically are implemented during a low traffic period (usually at night). A primary purpose of concrete modular pavements is heavily trafficked roads and other transport areas. This paper focuses on concrete modular pavements, their types, issues and challenges related to their design, slab fabrication and pavement construction. The conducted analysis revealed 15 different types of concrete modular pavements that differ from the techniques of slab joints and load transfer between the adjacent slabs. More than 20 issues and challenges related to the design of modular elements, slab fabrication and pavement construction were identified. Finally, the existing practice of concrete modular pavements was summarised and the gaps of scientific knowledge, as well as a need for comprehensive research, were defined.
Highlights
According to the European Asphalt Pavement Association, more than 90 per cent of the European road network is made of asphalt pavements
The friction between the bottom of the slab and the surface of slab support resists these movements and causes stresses in the pavement. These stresses become crucial in long, prestressed panels (PPCPs) because they reduce the compressive stress transferred to the concrete from post-tensioning
The analysis of precast concrete pavements (PCPs) revealed that all three types (PPCP, jointed precast concrete pavements (JPCPs) and incrementally connected precast concrete pavements (ICPCPs)) are used independently of Average Daily Traffic (AADT) as well as equivalent single axle loads (ESALs)
Summary
According to the European Asphalt Pavement Association, more than 90 per cent of the European road network is made of asphalt pavements. These pavements quickly deteriorate because they are sensitive to increasing traffic volume and climate change resulting in cracks, rutting, ravelling, potholes and other distress. Interruption of traffic by implementing repair and rehabilitation works leads to traffic congestion. Concrete modular pavements are known as precast concrete pavements (PCPs) are a reasonable solution to deal with road works since their construction is time-saving. Since slabs for the concrete modular pavements are produced at a manufacturer, a high consistency of quality is ensured. This paper reveals aspects that have to be improved or at least aspects where attention has to be paid to ensure PCP durability and sustainability
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