Laing O’Rourke

South Eastern Program Alliance

Client

Laing O’Rourke

Completed

2021

Result

Generated hundreds more data points with less people and "saved up to 12hrs off our program through utilising the strength forecast (which is a huge deal mid-rail occupation)" per pour

Laing O'Rourke saved up to 12 hours per pour during a 40 day rail occupation at Lilydale on the Level Crossings Removal Project.

Background

A railway occupation is a 24/7 job at the best of times. Throw in a strike and a covid-induced industry-wide lockdown and the need for safe, productivity-improvement gets fast-tracked. Converge automated much of the concrete monitoring with simple-to-use hardware and a mobile app.

The Solution

Concrete temperature monitoring and converting it into a maturity calculation is the bane of every intern and junior engineer. Its value is worth it due to the speed and accuracy vs sampling cubes/cylinders but is mundane and prone to transcription error on a loud, busy site. Converge’s ConcreteDNA was simple for the team to install day or night

Signal Sensor attached to rebar.
Concrete pouring

Once covered in concrete, within two hours the team collected temperature data via the mobile phone and the app converted it to strength. Where it really made the difference was the AI-driven strength prediction that allowed for planning between shifts. Saving up to 12 hours vs traditional destructive methods.

It was a special feeling for the team seeing the first train cross the track.

Results

Time to remove the formwork

Saving up to 12 hours per pour.

Reducing congestion and manual errors

Using wireless concrete sensors reduced site congestion and the risk of manual transcription errors when using traditional thermocouples.

"[We] saved up to 12hrs [per pour] off our program through utilising the strength forecast (which is a huge deal mid-rail occupation)"
James Tolar
Site Engineer, Laing O’Rourke Australia (Chair, Engineers Australia)

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