Pavement Type Selection: What is the Ideal Process?

Highways Members Only

Pavement type selection is often one of the more challenging and controversial decisions highway administrators face. The process involves weighing engineering factors such as materials, structural, and even long term performance against initial and life-cycle costs to help agencies decide between various pavement alternatives. Given the expenditure of significant public...

Using Evenness Data for the Systematic Application of the Falling Weight Deflectometer on Concrete Roads

Highways Members Only

In many countries the Falling Weight Deflectometer (FWD) is used to assess bearing capacity and thereby the structural condition of concrete roads. Due to the fact that the FWD is a stationary measuring system it can be used only for object related assessment of bearing capacity, but not for network-level...

Paver-Compacted Concrete, a New and Innovative Method of Constructing Road Pavements Exposed to Heavy Traffic

Highways Members Only

The world-wide debate on suitable economic measures to improve mobility and energy efficiency has also led to the development of new and innovative construction materials and methods as a way of solving the problem of how to pave roads and trafficked areas economically. One such innovation is paver-compacted concrete, or...

Concrete Pavement in the Streets of Access to Paranaguá Port in the South of Brazil Portside Area Revitalization

Highways Members Only

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...

Roller Compacted Heavy Concrete (RCHC) for Pavement Strength and Density

Highways Members Only

In the technology of the Roller Compacted Concrete (RCC) for pavement, various types of aggregations are used classically as aggregates, such as the crushed and the rolled aggregates limestone and siliceous, giving concretes with a relative density in the order of 2200 to 2300 kg/m3. In the present work, we...

A New Design Method of Concrete Pavements

Highways Members Only

In this paper a new design method of plain concrete pavements without bond to the subgrade is presented. For the first time, stresses resulting from environmental conditions will be considered in a realistic way in addition to stresses due to live loads. The basis of this new design method is...

CRCP a Cost-Effective Long-Life Pavement Solution for Highways & Expressways

Highways Members Only

Continuously Reinforced Concrete Pavement, CRCP is a concrete pavement that is reinforced with steel bars in the direction of traffic. CRCP is a durable pavement solution, advancement to plain concrete pavement. Reinforcement is used in CRCP, to tackle the problem of concrete slab cracking, instead of joints used in conventional...

Guidance to Quality Management of Road Construction

Highways Members Only

The purpose of this article is to provide the administration and the designers with an effective, workable flow-chart so that the quality of the road is priority number one and that the execution problems are manageable. Based on the experience during most recent jobs COPRO observed interesting evolutions and missing...

New Innovative Road Construction Method Whitetopping – a Quick Way to Resolve Rutting

Highways Members Only

Road traffic in Germany is increasing steadily year after year and recent forecasts have predicted that it will continue to do so. At the same time, neither the German central government, the federal states nor the towns and cities have the funds required for new infrastructure projects and urgently needed...

Storage and Infiltration of Rain Water Through Permeable Paving Blocks a First Step to Disconnect – Results of a Belgian Research Project

Highways Members Only

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...

Long-Term Performance of Low-Noise Concrete Pavements

Highways Members Only

Traffic noise is one of the major environmental concerns within the countries of the European Union. 80 to 90% of the traffic noise pollution is generated by road traffic. The major part of the noise emitted by vehicles on roads in the mid- to high-speed range is nowadays due to...

The Frost-Resistance within the Drainage Concrete

Highways Members Only

Drainage concrete on the base of cement with BD10 admixture was analyzed in our research. The paper presents components of mixture, experimental results of thaw and freezing tests and compression strength for drainage concrete. The specimens were fabricated in Poznan University of Technology laboratory. All specimens were prepared as drainage...