Closing ceremony from 5th International Symposium on Concrete Roads 1986 Aachen Germany
5th International Symposium on Concrete Roads 1986 Aachen Germany
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
Index of Papers and Opening from Addresses from the 5th International Symposium on Concrete Roads 1986 Aachen Germany
New developments in the construction of railway track bases without ballast
The conventional form of construction for permanent way, as first conceived about ISO years ago, adopted the ballast bed for supporting the railway track from what at that time was the most economical road building method, namely, macadam. By the same token, a p:esent-day innovative form of permanent way construt~...
Road/trackway structure a system for the future
In September 1984 the first West-European trial section with the Nikex system was constructed in Rotterdam. This sys~em was developed in the early seventies by the Public Transport Service of Budapest, a concrete manufacturer and Budapest University. By now, well over 225 km (single track) is in use in the...
A British Railway Slab Track Project
Paved concrete track (PACT) is a continuously reinforced profiled concrete slab laid by a purposedesigned sLi.pf'o rm paving train on which the rails are continuously supported. This paper traces the development of the system by British Rail and includes a detailed description of the components of the system and the...
Experimental section of railway track on a reinforced concrete continuous slab
In 1975, on the Madrid - Barcelona railway line, an experimental section without ballast was constructed with a view to obtaining a track which would be of sufficiently good quality for use by fast trains while costing less to maintain. The 4,IOO-m-long section was located on a part of the...
Use of new road materials (industrial wastes) in mixes for sub-bases
The replacement of traditional aggregates (limestone) by crushed blastfurnace slag or LD steelmaking slag in lean concrete and in cement-stabilized hardcore was investigated. The effect of adding fly-ash to mixes of the conventional type was also studied. For mixes of equal composition (in parts by volume) and equal grading (by...
Use of cement-bound industrial wastes and recycled materials in earthworks and road construction
For environmental reasons, it is becoming increasingly difficult and eherefore expensive to find fresh sites for wasee disposal. Investigations have shown that coal fly-ash, refuse incinerator grate ash, demolished road asphalt and concrete rubble can, when suicably treated with cement, be economically reused for road construction, for which purpose they...
The use of concrete and masonry waste as aggregates for concrete in the Netherlands
In che paper, results are presented of laboratory research and applications in practice of concrete and masonry waste as aggregates for concrete. In a thorough study the amounts, composicion and relevant properties of the waste were investigated. Based on the results of tests in the laboratory and of full scale,...
Use of slags in concrete pavements and sub-bases
Industrial by-products have long been used in French road construction. Experience gained over the last twenty years with che extensive use of by-product gravel-sand stabilized with hydraulic binders as a sub-base material, as well as the results of highway engineering practice in neighbouring countries like Germany and Belgi~prompted the LPC...
Use of residues from the incineration of domestic wastes and other residual matters mixed with cement in road construction
The incineration of household refuse in the Federal Republic of Germany yields up to about 3.5 million tonnes of residual waste per year. About 90% of this consists of grate ash and about 10% of fly-ash, the latter mostly being collected in electrostatic precipitators. The grate ash consists chiefly of...