Advanced Concrete Means Little Maintenance For A Century

txchnologist:

image

by Michael Keller

A new water-repellant concrete impregnated with tiny superstrong fibers promises to leave roads and bridges free of major cracks for up to 120 years.

University of Wisconsin-Milwaukee civil engineers have developed a concrete mix that is durable and superhydrophobic. They call it Superhydrophobic Engineered Cementitious Composite (SECC). Preventing normally porous concrete from absorbing water means that liquid can’t get inside, freeze and cause it to crack. The concrete’s unusual characteristics, including being significantly more ductile than traditional concrete, means that cracks that do form do not propagate and cause failure.

“Our architecture allows the material to withstand four times the compression with 200 times the ductility of traditional concrete,” said associate professor Konstantin Sobolev, whose lab created SECC.

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lizzyjohn:

Digital studies, trying to get a good feel for tigers. These are the tidier ones. Mostly done off of deviantart stock photos I looked up under the ‘newest’ section.

astroqube:

色紙

astroqube:

色紙

astroqube:

(修正前)

astroqube:

(修正前)

saitamanodoruji:

[drawr] myqi - 2014-04-03 01:05:30
sockinabox:

Sonic can beat Mario

sockinabox:

Sonic can beat Mario

bspolitics:

As someone said elsewhere on the internet, can we just stop for a second and appreciate the fact that 18%, almost 1/5, of food stamps spending goes to Walmart employees?

The company store is back in business.

deep-fried-ice-cream:

I am a high school student

deep-fried-ice-cream:

I am a high school student