Life Cycle Cost Analysis (LCCA) evaluates the economic performance of alternative pavement investments. Currently, practitioners treat input parameters as static, deterministic values, which although computationally simpler, will hide the implicit uncertainty underlying the analysis. Over the past decade, an emphasis has been placed upon accounting for uncertainty by treating input...
Probabilistic Life-Cycle Cost of Pavements Characterization and Application of Parameter Input Variation for Scenarios
Road Safety and Surface Durability Aspects on Hungarian Cement Concrete Pavements
The ratio of cement concrete pavements has increased in the Hungarian motorway network in the last decade, and it has appeared also in the local road network. There are 15 cement concrete pavement sections with different type in Hungary. Maintenance agencies need a simple methodology for calculating surface deterioration of...
Sustainable Concrete Pavement Design Solutions Applied on the Largest PPP Motorway Construction Project in Europe
The authors present the sustainable pavement design solutions applied on 106 km long section of A2 toll motorway in Poland. For this largest infrastructure project, realized in the frame of Public-Private Partnerships (PPP), the concession model, where the concessionaire has to be paid by public part for the accessibility of...
Influence of Recycled Concrete Aggregates on Strength Properties of Concrete
The demand to use recycled aggregates in concrete is getting more important. However, to obtain a sustainable road, it is necessary to construct durable pavements and therefore to use concrete of good and reliable quality. The use of recycled aggregates will give environmental advantages but could lead to excessive shrinkage...
Optimization of the Recycling of Concrete in Concrete Application to an Airport Slab
The use of demolished concrete as recycled aggregate in new concrete is a promising solution within the context of sustainable development. However, this application is still limited in the construction sector due to the lack of knowledge. In that context, Ifsttar (France) and the French industry's major players have finished...
Environmental Performances of Roller Compacted Concrete Pavement
The use of RCC is now well established for industrial pavements, and is spreading in North America and recently in Europe for transportation pavement with high mechanical performances requirements such as Tram or Bus platforms. Cost advantage and mechanical performances are two undeniable benefits of this technology. The development of...
Recyclable High Volume Fly Ash Pavement Concrete Using Limestone Aggregate
Fly-ash is a pozzolanic material, so it can contribute to various properties, such as strength development at mature age. The strength development at early age, however, is significantly slow and may negatively affect traffic service. Early strength may be improved when limestone filler is mixed in fly-ash concrete. In addition,...
Texture and Noise Characteristics of Exposed Aggregate Concrete Road Surfaces
Exposed aggregate cement concrete (EACC) road pavements are used on a large portion of the Austrian federal motorway network due to their durability and reduced noise emission. The standardized types with 8 and 11 mm chipping sizes have been characterized due to their noise emission and are subject to approval...
Skid Resistance of Concrete Pavements and their Durability
The article states that a relative traffic accident risk depends on the values of skid resistance and its durability, which are both influenced by the texturing of Concrete pavements (CP). From the very beginning of the CP construction in the Czech Republic, transverse tining was used for surface texturing. The...
Determination of the Behavior of on Site Pavement Recycling with Cement
On site pavement recycling with cement is the most sustainable restoration technique, by means of which a degraded pavement is transformed into a consistent and more homogeneous structure, using the road as a source of aggregates. Both bearing capacity and homogeneity are therefore considerably improved. Due to the absence of...
Skid Resistance Properties of Concrete Pavement Surfaces in Tunnels
Skid resistance properties of concrete pavement surfaces in tunnels are measured with the dynamic measuring device TRT on a regular basis in the Czech Republic. Measurements are usually carried out before and after putting the tunnel into operation and then approximately once a year; the skid resistance is also measured...
Re-use of Marginal Aggregates in Cement Bound Mixtures for Pavement Foundations
The paper reports the results of an experimental study aimed at designing cement bound granular mixtures for pavement foundations, made exclusively with marginal materials, namely electric arc furnace steel slags, ladle furnace slags, waste foundry sands, glass wastes and coal ashes, used with different proportions. The laboratory investigation has been...