Missouri Dept. Of Transportation Tests Smog-Eating Concrete
St. LOUIS, Mo. (KMOX) – The Missouri Department of Transportation is getting ready to test a concrete that will hopefully make that commute on smog filled mornings a little easier.
A 1,500-foot test section of cement laced with a photo-catalytic additive of titanium dioxide will be used on Route 141. This new cement absorbs smog, uses sunlight to break it down, and releases it as nitrogen and carbon dioxide.
MODOT believes this additive, which has been used in Europe, is being tested for the first time in the United States.
Since the titanium dioxide is expensive, a paving technique developed by other countries calls for a thin layer of the smog eating cement over a regular concrete slab. The method reportedly is as strong as that used on standard concrete pours.
MODOT hopes to get the test underway in mid-October.
MODOT’s Chief Engineer talks with Total Information AM