Tala Ko

Bendy concrete!

Posted on: Friday, 8 May 2009

clipped from news.nationalgeographic.com


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.

bendable concrete picture


Although it costs three times as much as traditional concrete, the material is a cost-saver in the long run, due to its reduced maintenance needs and energy demands, Li said.

  blog it
Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: