A new methodology has been developed to design the concrete slab thickness by optimizing the slab size given the geometry of the truck axles, the design is based on an unbonded system with either granular, HMA, Stabilized or Concrete Base. The key principle of the design method is to configure...
Decision Making Support Model for Sustainable Road Pavements
The task of calculating road pavements is an easy one. However, reaching the point of choosing a type of pavement one is confronted with many possible solutions. They can all meet to the technical terms, such as bearing capacity, safety and durability. The growing importance of sustainable building has added...
Crack Behaviour of Continuously Reinforced Concrete Pavements
The use of continuously reinforced concrete pavements (CRCP) is well spread in Belgium, mainly because of the confidence in its durability. It is used frequently on Belgian motorways and also on other heavily trafficked roads. The behaviour of CRCP is influenced by a number of specific characteristics such as the...
Nonwoven Geotextile Interlayers for Separating Cementitious Pavement Layers Use in Germany Leads to Better Practice in Us
Nonwoven geotextiles between cementitious layers have been part of the design and construction of concrete pavements in Germany since 1981. German experience with nonwoven geotextile interlayers includes the design and construction of unbonded overlays and new pavement. German pavement engineers recognize that nonwoven geotextile interlayers provide three specific functions that...
New Hungarian Regulations for Concrete Pavements and their Application in Hungary
The first concrete pavement was built in Hungary with ABG slip form paver on motorway M7 between Budapest and Lake Balaton. After 30 years, concrete pavement was built again on the Motorway M0 around Budapest. The limited performance capacity of asphalt pavements on expressways and motorways made it necessary to...
Latest Findings on the Construction Type Continuously Reinforced Concrete Pavement
In 1920, the first Continuously Reinforced Concrete Pavement (CRCP) was constructed in the USA. In Europe, this type of construction was first applied in Belgium in 1948. Since then, more than 50.000 km of CRCP have been built in more than 30 countries. These implementations have shown increased driving comfort,...
Working Mechanisms of Air-Entraining Admixtures and their Subsequent Activation Potential
From some job sites it was reported that the air void content of the hardened road concrete was considerably higher than that of the fresh concrete, especially, when air-entraining agents based on synthetic active constituents have been used. Investigations in the Research Institute with commercial air-entrainers based on synthetic and...
Technical and Economical Feasibility of Pavement Widenings in Cement Concrete in the Netherlands
In 2009 the Dutch Parliament amended special laws to speed up road widening projects. This situation opened possibilities for sustainable concrete pavements needing less maintenance, especially for the right-hand lane that takes the heavy traffic. This paper presents the results of a study carried out in 2009, by a working...
ASCP Forum – Ports & Airports
This forum addressed design & construction related to Ports & Airports. The range of expert speakers included: Shane Dunstan - Roller Compacted Concrete Pavement Brian Shackel - Interlocking Block Paving Weeks White - Construction & Geotechnical John Knapton - Ports Robert Smith - Airports Bruce Rodway - Airports
Construction of Cement Concrete Pavement a Case Study
Construction of Cement Concrete Pavement on National Highways started in India during the year 1991 when Ministry of Surface Transport, Government of India, under took four laning of 112 Kms. long Delhi Mathura Section of NH-2. Construction of Cement Concrete Pavement picked up in 1998 with the implementation of...
Air Purification and Self-Cleaning Materials Photocatalytic Pavement Blocks on the Leien of Antwerp
Heterogeneous photocatalysis is a rapidly developing field in environmental engineering. It has a great potential to cope with the increasing pollution by traffic. The addition of a photocatalyst to ordinary building materials such as concrete, creates environmental friendly materials by which air pollution or pollution of the surface itself can...
Walloon Design Method for Concrete Pavements Improvements Since 2003
The Administration of the Ministry of Equipment and Transport of the Walloon Government, together with researchers of the Federation of the Belgian Cement Industry and the Belgian Road Research Centre, put into practice a software program for the structural design of pavements. This program is in use for several years...