New Products

New, safe injection-grouting resins

Legislation within the EU changes with great rapidity in many sectors. A recent innovation, for example, were the REACH regulations; this acronym stands for Registration, Evaluation, Authorisation and Restriction of CHemicals. Should a feed materials producer decide, for economic reasons, not to register a specific substance under REACH, it is possible that the marketing and use of that substance may be banned in future. It will also be necessary to apply special labelling to a number of products, indicating, for instance, „Hazardous“ or even ”Toxic“. Phthalate-based substances, for example,...

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Issue 2010-07 New Products

New Tail Seal Grease for TBM

Condat started its lubricants activity for underground works in 1989 when it was awarded by international tender to supply the tail seal grease WR 89 for the Channel Tunnel. Since then, this product...

Issue 2009-05 Construction Equipment

Mixing and Grouting Systems for the Weinberg Tunnel in Zurich/CH

Mixing and grouting systems made by Häny are being used to construct the new Alstetten – Zurich Main Station - Oerlikon cross-city underground link in Switzerland. In contract section 3 (Weinberg...

Issue 2015-02


Rascor has been internationally active for 50 years as a manufacturer of products for the waterproofing of tunnels and specialised civil engineering works. The particular speciality is grouting...

Issue 2018-03

New Joint Sealing Process for Segment Tunnels

Targeted Sealing of Leaks in Segment Linings In targeted sealing of leaks, the direct route through the joints between segment linings is used in order to drill through the gasket and inject grout on...

Issue 2019-05

Rehabilitation of a Deteriorated Metro Line with Injection Technology

1 Compartment Barriers and Curtain Injections 1.1 Resins and Equipment ? Foam Seal is a dual component, quick reacting, slightly flexible silicate-based injection foam. It is used mostly for safe...