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Imagine a scenario where the polluting elements from a car’s exhaust get miraculously nullified by the road on which the car is running! This might become the reality in near future in a small Dutch town – Hengelo. The town’s University of Twente is now testing a nouveau type of concrete which it claims is an “air-purifying concrete”. The university claims this unique concrete absorbs nitrogen oxide particles which are emitted by car exhausts. The titanium dioxide-based additive alters this concrete. The latter is able to bind nitrogen oxide with the help up sunlight falling on it and converts them into nitrates (harmless species). These can easily get washed away with the rain shower. Currently, the new concrete will be tested on the roads of Hengelo in parts only as the townsfolk is still skeptical over this concept.

So, green bricks made out of this air-purifying concrete will be laid down in alternate sections will the normal one on the road and then further studies will be conducted to determine its effectiveness. If the new concrete proves its mettle then hurray, at least there will be a beginning of green pavement in that part of the world!
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Via: engadget