Concrete, the most widely used building material in the world, inevitably cracks over time.  So engineers are working on a concrete that heals itself.

Concrete, the most widely used building material in the world, inevitably cracks over time. So engineers are working on a concrete that heals itself.

Self-Healing Cement

The National Academy of Engineering has worked with the Washington, D.C. region's most listened-to radio station — the all-news format <a href="http://www.wtop.com/" target="_blank">WTOP Radio</a> — and the nation's only radio station specifically dedicated to covering news related to the federal government — <a href="http://www.federalnewsradio.com/" target="_blank">WFED 1500 AM</a> — To provide weekly features highlighting engineering innovations and stories that add technical context to issues in the news. Hear some of our stories in the links below.

Technology

The National Academy of Engineering has worked with the Washington, D.C. region's most listened-to radio station — the all-news format WTOP Radio — and the nation's only radio station specifically dedicated to covering news related to the federal government — WFED 1500 AM — To provide weekly features highlighting engineering innovations and stories that add technical context to issues in the news. Hear some of our stories in the links below.

The National Academy of Engineering has worked with the Washington, D.C. region's most listened-to radio station — the all-news format <a href="http://www.wtop.com/" rel="noopener noreferrer">WTOP Radio</a> — and the nation's only radio station specifically dedicated to covering news related to the federal government — <a href="http://www.federalnewsradio.com/" rel="noopener noreferrer">WFED 1500 AM</a> — To provide weekly features highlighting engineering innovations and stories that add technical context to issues in the news. Hear some of our stories in the links below.

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Self-Healing Cement

Self-Healing Cement