Tests during road construction have been manipulated.
NSW for Transport says the faking of tests raises concerns about durability.
Industry sources say faking tests can be due to financial or time pressures.
Subcontractors helping to build roads have been faking tests, in one case backfilling data after layers of the road had been laid down.
The fakery, uncovered on a NSW project, raises concerns about the long-term durability of taxpayer-funded infrastructure.
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Liam Walsh writes on investigations and companies with The Australian Financial Review. He has won multiple media awards, worked in Japan and is now based in Brisbane. Email Liam at liam.walsh@afr.com.au
