HS2 digital concrete test to cut carbon (TunnellingJournal)

A successful trial of a ground-breaking digital measuring system for concrete has led to a roll-out across multiple sites on the UK’s HS2 project, cutting carbon and driving efficiencies on the construction project.

VERIFI® is a pioneering technology that enables real-time monitoring, measurement, and management of fresh concrete properties during transportation. By utilising on-truck sensors linked to proprietary patented algorithms, VERIFI is the first digital solution to replace manual consistence (e.g. slump) and temperature testing of fresh concrete. In simple terms, this means the concrete truck-mixer tracks itself to the point of delivery, tests itself prior to discharge and auto generates pour records for quality assurance purposes.

Over the last two years, HS2’s main works contractor Balfour Beatty VINCI (BBV) has worked with supply chain partners Saint Gobain Construction Chemicals who developed VERIFI, and their concrete supply partners Tarmac and Aggregate Industries to test and validate the system.

A full-scale site trial involving over 20,000m3 of concrete demonstrated accuracy and confidence in the technology, and HS2 Ltd has now approved the roll-out across further sites.

One of the key benefits of the system is the elimination of concrete waste which would have been produced from manual sampling and testing. When the solution is rolled out across BBV’s section of the route, this could result in cutting 1,500 tonnes of carbon.

Analysing the entire volume in the truck instead of spot samples results in improved quality control and more accurate readings. Safety is also improved due to less plant-person interface and manual handling on site.

In addition, it enhances productivity and efficiency by delivering clear digital readouts, eliminating delays associated with sampling and testing processes, which allows for better scheduling and reduces potential bottlenecks in the construction timeline.

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