The ACI has released a new publication "Concrete Pavement Design, Construction and Performance written by Norbert Delatte. It is available through the ACI at www.concrete.org - go to their bookstore. "A pavement project may be envisioned as a three link chain, consisting of materials, design, and construction. Because the weakest...
Road and Railway Tunnels the Concrete Solution for Improving Passenger Safety and Emergency Response
Road tunnels and railway tunnels generally, located in sensitive sites, must not be considered simply as an extension of standard open-air sections. For the road tunnels, the thickness of the structure, its future maintenance and the consequences on traffic, as also the effect on lighting of pavement lightness have to...
Wheel Tracks, the Compromise Between Agricultural and Environmental Interests
In certain areas there is a need to surfacing sand roads due to agricultural developments: mechanisation and efficient management of farming activities are essential. Farmers must have direct access to the fields at all times without too many obstacles. However, attention must also be paid to various other aspects: environmental...
Types of Reinforced Concrete Railway Infrastructures and Essentials of their Computations
Reinforced concrete railway superstructure type (non-ballasted) is becoming more widespread and important in the world, similarly in Turkey. This type can be used both in all of the light rail systems of urban transport and also the high speed rail systems of intercity transport. Although its construction cost is higher,...
From the Road To the Railway Urban Transportation Trackdim Transposition of a Calculation Method
Alstom who is a major company in the turnkey railways construction activity including railways track construction, developed an adaptation of roads and highways calculation modelization based on concrete fatigue resistance under traffic loads to for railways tracks calculation purpose. Roads and highways have a long and rich experience and data...
Concrete Slab Tracks for Railways
Due to the planning and construction of new high speed railways, the development and testing of the ballastless tracks, which started in Germany in the seventies, is now turning up again. The use of this almost mairitenailce free structure requires the assessment of the multi-layer system. For the slab track...
6th International Symposium on Concrete Roads 1990 Madrid Spain
Session Paper Indexes, Opening Addresses, General Reports, Oral Contributions and Closings from the 6th International Symposium on Concrete Roads 1990 Madrid Spain
5th International Symposium on Concrete Roads 1986 Aachen Germany
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
Concrete dual-track roads
Fully paved farm tracks which look like roads are coming in for a~ increasing amount of public eriticism, for they do not fit the ima~e of originally unpaved tracks consisting of two parallel wheel paths with a grassed strip in the middle. Trackways built of concrete do resemble the old...
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...
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...