Polymer concrete
NANO-COMPOSITE BASED ON RECYCLED CONCRETE AND THERMOFIX RESINS
Recycling concrete is increasingly used due to the reduced environmental impact it generates, since it does not require Portland cement in the production of composite materials.
In this case, these materials use thermoset resins and nanometric reinforcements.
The resins can be epoxy or unsaturated polyester; The nano-reinforcements for these resins can be carbon nanotubes, nanographite, calcium nanocarbonate, nanoclays, or any mineral or synthetic element on the nanometer scale.
The polyester resins used in this development come from recycled polyethylene terephthalate (PET) bottles transformed into unsaturated polyester resin by a chemical glycolysis process.
The present study of polymeric concrete has been carried out in collaboration with the Materials Research Institute of the UNAM.
In mechanical tests it was observed that the introduction of nanoparticles leads to an increase in the viscosity of the resin. As their concentration increased, the maximum fracture load changed, obtaining an increase of 48% for the epoxy resin system + 5% clay-lys.
The final resistance of the compound is f'c = 500 kg / cm2 and it has a higher permeability than traditional materials, which allows extraordinary durability on heavy rolling surfaces, as well as greater infiltration into the subsoils.
GENERALITIES:
A macromolecule formed by the union of one or more repeating molecules is called a polymer. These molecules are called monomers and the reactions through which this formation takes place are called polymerization.
Polymers are classified in various ways, among the most used we find thermoplastics, thermosets and elastomers.
