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These new concretes have properties to contribute to the fight against climate change. The photocalitic type can clean the air by up to 30%, while the permeable one will help replenish the aquifers.
A group of foreign students created two types of concrete, one that cleans the air (photocalitic) and the other (permeable) that helps purify rainwater, with the main mission of cleaning the environment.
Concrete slabs have the ability to purify the air up to 30 percent of harmful particles floating in the atmosphere and can work for building and facade finishes.
The name of this sustainable material is Photocatalytic Concrete, through a reaction called photocatalysis that uses ultraviolet (UV) rays, it degrades nitrous oxides to transform them into nitrates.
Another property of concrete is that it lets the water pass so that it is reintegrated into the subsoil reserves and with this prevent it from being contaminated when ending up in the sewers, "rainwater can return to the aquifers and continue its natural cycle", the experts explained.
Likewise, they have been working so that this technology is used soon in construction projects, in such a way that it can be applied in delegations that are affected by floods and thus prevent historical monuments from sinking.
It can also be used on sidewalks, parking lots or gardens, it is very resistant and there are many places in the city that already have this permeable concrete in finishes for houses and buildings.
It has broad ecological benefits for the environment, since concrete is one of the most widely used materials in the world, but to produce one ton, another ton of carbon dioxide is generated. That is why for this new type, waste such as garbage such as organic fibers, tire rubber and gravel were used.
Also, after its useful life, it can be reused to make a new batch of the same material.