Luas Tram Line, Dublin

QC10 F has been used to resolve damaged areas along Dublin’s state-of-the-art Light Rail transport system.

The Luas is a state of the art Light Rail transport system in Dublin, providing passengers with a high-capacity service that is fast, frequent and reliable. It opened in 2004 and currently has 54 stations covering 23.7 miles of track, carrying approximately 30 million passengers a year.

A section of embedded track concrete shoulder, adjacent to the road surface, was under stress because the installation material had failed. UltraCrete recommended the use of its QC10 F flowable, fast set, rapid strength concrete to resolve the issue.

QC10 F is specifically formulated for back filling around ironwork, including gullies and manhole frames and can also be used for surface repairs. It requires only the addition of water on-site to form a high strength concrete, achieving a compressive strength of 20N/ mm² after just 90 minutes! It sets in 10-20 minutes and is suitable for applications from 30-250mm in one pass.

In this instance it was used as a surface repair and was installed by maintenance contractor Civic Group Ltd, who carried out the reinstatement overnight during a tight time frame of just four hours, to ensure minimal disruption to the tram and its commuters. Existing material was broken out, before QC10 F was poured into the void around the girder rails.

QC10 F is HAPAS approved by the BBA as part of UltraCrete’s manhole reinstatement system which is independently tested by a UKAS accredited laboratory to verify its performance. The system comprises of a range of bedding mortars, back fill concrete, cold lay asphalt and a bitumen spray. All components offer, where appropriate, impressive tensile and compressive strengths thus prolonging the service life of the repair.

The Luas tram line was re-opened within the allotted window thanks to the rapid setting properties of QC10 F.

Products used

QC10 F: Rapid Set Flowable Concrete

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