Road Structures

BASF claims that its latest innovation will help improve efficiency in tunnel construction operations. Developed by BASF's Construction Chemicals division the new Crystal Speed Hardening system (CSH) is an advanced admixture technology aimed directly at the tunneling market.

Blastcrete Equipment Company says that its novel new Mason Mate system provides an innovative solution for concrete repair and shotcreting in tunnelling applications.

With the aid of services provided by Laidler Associates the refurbished Portumna road bridge in Galway has become the first bridge in the Ireland to carry European CE marking. The CE marking was needed because the swing bridge has moving parts, and falls within the scope of the Machinery Directive.

The Baluarte Bridge (Puente Baluarte), part of a major highway project, ranks among the most outstanding infrastructure projects ever constructed in Mexico.

The strong market for shotcreting technology has led BASF to hold a workshop for waterproofing specialists. The firm's latest system can be used to provide a permanent waterproof single-shell tunnel lining based on sprayed concrete and double-bonded waterproofing membrane.

WORK ON a major upgrade at a busy German road junction is expected to be completed by the end of 2011. To assist in the project, two Putzmeister large-boom concrete pumps, an M 58-5 from Berger Beton and an M 62-6 from BFM Betonförderdienst in Munich, arrived at the Neufahrn motorway junction, north of the city. The junction, when viewed from above, looks like a flatly pressed four-leaf clover, and can no longer cope with traffic volumes. Two national motorways, the A 9 and the A 92, intersect at the

Innovative formwork systems have been used to construct a variety of bridge structures. Patrick Smith reports. As part of the work on Germany's new A4 autobahn near Eisenach, the contracting joint venture awarded the formwork contract for two of the three viaducts to Doka. What makes this assignment so special to the company is that although the two steel composite bridges each have very different cross-sections, the JV is using the same overslung composite forming carriage to pour the carriageway slabs of