Bend it Like Concrete

Advances in material development have brought to the market a new type of concrete that can bend under pressure and heal cracks with the addition of water.

"Traditional concrete is brittle and is easily fractured during an earthquake or by overuse.

By contrast, the new concrete composite can bend into a U-shape without breaking. When strained, the material forms hairline cracks, which auto-seal after a few days of light rain.

Dry material exposed by the cracks reacts with rainwater and carbon dioxide in the air to form "scars" of calcium carbonate, a strong compound found naturally in seashells, said study co-author Victor Li of the University of Michigan in Ann Arbor.

The flexible material is just as strong after it heals, the study authors report."

Full Story: Bendable Concrete Heals Itself -- Just Add Water

Comments

Book cover of the Guide to Graduate Planning Programs 4th Edition

Thinking about Grad School?

New! 4th Edition of the Planetizen Guide to Graduate Urban Planning Programs just released.
Starting at $24.95

Prepare for the AICP Exam

Join the thousands of students who have utilized the Planetizen AICP* Exam Preparation Class to prepare for the American Planning Association's AICP* exam.
Starting at $209
Book cover of Unsprawl

Unsprawl: Remixing Spaces as Places

Explore visionary, controversial and ultimately successful strategies for building people-centered places.
Starting at $12.95
City Plate table setting

New Arrival! City Plates

City downtown cores printed on gorgeous decorative collectible porcelain plates.
$50.00