A road condition called Concrete cancer, also known as alkali-silica reaction, has forced Lincoln to repair and replace concrete in newer city streets over the past ten years, in a report by the Lincoln Journal Star.
The culprit is flyash, an ingredient used to make concrete in the 1980s and 19990s, which city engineers estimate may have been used in about 50 miles of the city's 1, 200 miles of arterial streets, which create additional repair and reconstruction costs.
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