
Concrete truck drivers reported leftover loads by CB radio, then topped off old concrete with 60-90 gallons of water so it would pass the slump test — and Big Dig walls were poured with concrete that could never pass the test of time.
As heard by us
A concrete fraud story told with patience, precision, and a sharp ear for how the system worked.
The Big Dig turns a concrete fraud story into a clear account of how a major public project can be gamed one truckload at a time. It is strongest when it slows down for the mechanics of the fraud, especially the slump test and the extra water that made old concrete look new, and…
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