The Brazilian Army looked the Associação Brasileira de Cimento Portland (ABCP) for a strategic partnership, aiming to transfer technology and train the troops for such works. The result of this partnership was a full concrete pavement construction and control technology course, lasting two weeks, covering all stages, also including practical...
Spanish Experience in the Design of Long-Life Pavements
As an example of Spanish experience in the design of long-life pavements, this paper is going to examine the above-mentioned construction project for a stretch of motorway with a pavement of exposed aggregateexposed aggregate concrete. The cross-section of the pavement comprises: - 23 cm of HF 4.5 (concrete with a...
Technical Prescriptions for Concrete Pavements by the Spanish Ministry of Development
Prescriptions for concrete pavements issued by the Spanish Road Administration are included in two types of documents: the Standard for Structural Sections of Pavements (6.1 IC) and the Specifications for Road and Bridge Works (PG 3). These documents were updated considering the latest advances in materials, construction processes and...
Long-Term Performance of a Concrete Pavement in a Motorway on Plastic Soils in Spain
The Sevilla Cádiz motorway was the first one in Spain where a concrete pavement was constructed with a slip-form paver. It was opened to traffic in 1971. Shortly, longitudinal cracks appeared, deemed to the presence of plastic soils in the subgrade. Sometimes these craks were several centimetres wide. It...
Continuously Reinforced Concrete Pavement in the A-7 Mediterranean Motorway of Spain
Long-life concrete pavements require less frequent repair, rehabilitation, and reconstruction, and therefore contribute to improving highway safety and mitigating congestion. Experience with these pavements, including examples of concrete pavements that have remained in service for more than 35 years. CRCP set out to offer the market a new alternative in...
A Long-Life Continuously Reinforced Concrete Pavement in Service Since 1976 in Spain. Widening and Future
A 43 km long continuously reinforced concrete pavement was opened to traffic 34 years ago connecting three important cities in an industrial region in the North of Spain. Each carriageway has two lanes 3.75 m wide, an outer shoulder 3.00 m wide and an inner shoulder 1.50 m wide. A...
Forty Years of Life of the Hydraulic Concrete Pavements of the Autopistas Aumar (Abertis Autopistas)
We attempt to present the management of concrete pavements made by Aumar on motorways which is the concessionaire: data collection and its management, application of their model of pavement, performance of this one, repairs and rehabilitation.
Design of Concrete Slabs with Optimized Geometry
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...