Since 1982 experimental sections of thin overlays have been constructed for an amount of 171.000 m'. Eight of these sections are made of 10 to 12 cm thick steel fibre reinforced concrete, six of them on a bituminous underlayer and two on old concrete pavement. Four other sections should verify...
Thin Continuously Reinforced Concrete and Steel Fffire Reinforced Concrete Overlays – Performance Affer Three to Eight Years
Design Charts For Small Element Precast Concrete Slab Pavements Using a Combined Finite Element Westergaard Approach
Small element precast concrete slab pavements through their use in urban areas where vehicular over-run is predominant have suffered severe failures which incurred a substantial public expenditure for their maintenance in the UK. This has created a need for the development of a rational design method that would lead to...
Rigid Pavement Rehabilitation Techniques in Canada
The rehabilitation of portland cement concrete (PCC) pavements on high volume freeways have always posed a challenge. In the summer of 1989, the Ministry of Transportation of the Province of Ontario (MTO), Canada, accepted the unique challenge to rehabilitate one such freeway using various PCC pavement repair techniques in one...
Precast Concrete Footway Paving Slabs That Resist Vehicular Overrun
This paper presents research into the design of square precast concrete paving flags ranging in plan size between 600 mm and 300 mm square. A design method for these paving flags overrun by vehicles is presented. The method shows that the existing test procedure underestimates the paving flag strength and...
Resurfacing Flexible Pavements with Thin Layers of Concrete with Steel Reinforcement
This paper describes the studies, reports and experimental sections related to this new type of pavement, not conventional, composed of a thin concrete layer, but with a steel reinforcement, in sufficient quantity to resist the traffic loads. The description goes back to the first studies and tests carried out inthe...
Payement Management For Concrete Pavements
The Illinois interstate highway network includes over 1700 centerline miles of jointed concrete and continuously reinforced concrete pavements. The pavements were constructed beginning in the 1950's through the 1980's and represent a wide range in designs and traffic loadings. This large highway network is now requiring extensive rehabilitation work as...
Widening of Concrete Roads with Porous Concrete Bases
This paper assesses the condition of a concrete motorway pavement in the Paris region to be widened from three to four lanes from the outside. The sigilificant drainage requirements of the existing pavement led to the provision of a new porous pavement. The design criteria applied for the typical crosssection...
Long Term Performance and Economic Aspects of Concrete Roads in Austria
Austria has more than 30 years' experience in concrete road construction. Half of the approximately 650 km of motorways with a concrete pavement are more than 20 years old. 40/0have already been reconstructed, some 14% will have to be reconstructed within the next 5 to 10 years. The remainder is...
Cement Concrete Secondary Roads Management Using the Belgian Road Research Centre Gersec System
A pavement management system for secondary road networks has been developed by the Belgian Road Research Centre for local government agencies and municipalities and handles both cement concrete and bituminous pavements. The system called GERSEC integrates technical approaches and economical evaluations with a view to optimize the distribution of the...
Long-Time Observations of Contracfion Joint Opening in Concrete Pavements Measurement and Evaluation
Long-time measurements of contraction joint opening were performed during a 25-year period for several pavement systems [concrete full depth construction, concrete pavement on a temperature insulated, cement treated (CTS) and bituminous subbase]. The data obtained were analyzed and the mean opening of the joints, the standard deviation, the coefficient of...
The Asturias Motorway Balance of Its First 15 Years Under Traffic
The Asturias motorway, called «y» -asturiana, links the three most important cities in Asturias. It has 43 km of continuously reinforced concrete pavement and was built during 1974and 1975.The behaviour of the motorway up to now has been very good in spite of the rainy weather and the unfavourable geology....
Evaluation and Maintenance of the Concrete Pavements on the Mediterranean Highway
The Mediterranean Highway has been in service for more than fifteen years, and we can state that the performance of the concrete paving has been overall excellent whether referring to its surface characteristics or its structural characteristics, except for those areas giving support where damage has taken place. The modifications...