October 8, 2008
pollution sucking sculptures
The replacement for the bridge that tragically collapsed about a year ago in Minnesota has an interesting feature.
Two statues have debuted on Minnesota’s new Interstate 35W Bridge that are shaped to look like the international cartographic symbol for water. Why? Besides mimicking the look of the Mississippi River as it passes through Minneapolis, the new sculptures are made from a type of concrete that is photocatalytic, meaning they will be able to convert gases like carbon monoxide, nitrous oxides and sulfur dioxide to higher oxidized states, making them less damaging to the environment. Another benefit of the new concrete mixture is that it never looks old as it maintains a white oxidized color on its outer skin.
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