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Widening of Concrete Roads with Porous Concrete Bases

Conf-paper-iscr

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

Conf-paper-iscr

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

Conf-paper-iscr

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

Conf-paper-iscr

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

Conf-paper-iscr

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

Conf-paper-iscr

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...

Load Transfer Restoration LCPC Freyssinet Connector

Conf-paper-iscr

The LCPCIFREYSSINET slab connector is an innovating device allowing load transfer restauration of concrete roads submitted to pumping effects. It is constittïed by two synietrical half-shells in cast iron glued to a central elastomeric pad and contains an adjusted steel-pin which slides freely within housings machined in the shells, making...

5th International Symposium on Concrete Roads 1986 Aachen Germany

Conference-report

Closing ceremony from 5th International Symposium on Concrete Roads 1986 Aachen Germany

5th International Symposium on Concrete Roads 1986 Aachen Germany

Conference-report

Indexes, General Reports and Additional Contributions from 5th International Symposium on Concrete Roads 1986 Aachen Germany

5th International Symposium on Concrete Roads 1986 Aachen Germany

Conference-report

Index of Papers and Opening from Addresses from the 5th International Symposium on Concrete Roads 1986 Aachen Germany

Pavement monitoring and heavy maintenance on the Geneva-Lausanne motorway

Conf-paper-iscr

The Geneva - Lausanne moeorway, which was commissioned in 1964, comprises about ~5 km of concrete pavement consisting of 20 cm thick doweled slabs (10m x 4m) resting on a non-stabilized 55 cm thick gravel-sand sub-base (0 -100 mm particle size). The subgrade consists of non-stabilized natural insieu soils as...

Maintenance and Rehabilitation of Concrete Roads

Conf-paper-iscr

For the repair of concrete roads to be effective and economic it is essential to have planned maintenance procedure. Details of such a procedure are to be published in the forthcoming publication "Manual for the Maintenance and Repair of Concrete Roads" ,which is to be adopted for roads administered by...