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The Economic Times
The Economic Times
National

In 1972, FHWA used 5 inches of scrubber waste in a parking-area base at Washington's Dulles Airport. 2 years later, wet weather caused the experimental base to soften and be replaced

FHWA Dulles Airport Washington D.C. Florida Pennsylvania Ohio Texas the Federal Highway Administration

In 1972, the Federal Highway Administration tested five inches of scrubber waste in the base of a parking area at Washington's Dulles Airport. Poor weather and saturated subgrade conditions contributed to the experimental base being removed and replaced.

The material, known as flue gas desulfurization (FGD) scrubber waste, comes from pollution-control equipment and was tested as a possible material for road bases and subbases.

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