Concrete is still the most common building material due to the fact that it is relatively cheap, easy to use, durable, fire and explosion resistant. However, it also has a serious drawback - tensile loads are not available to concrete. Therefore, to give this material seismic stability, it is reinforced with steel reinforcement.
Researchers at the University of British Columbia (Canada) have developed a new type of concrete that is as strong as steel, earthquake-resistant, and also environmentally friendly.
It uses EDCC as one of its components, a combustion product also known as fly ash. According to University professor Nemi Bantia, cement production produces up to 7% of the world's greenhouse gases. Replacing 70% of the cement with an environmentally friendly EDCC can significantly reduce these numbers.
The composition of eco-concrete includes other additives, in particular, polymer fibers, which give it unique properties - a combination of steel strength and plasticity, which is inaccessible to ordinary concrete.
In the experiment, the scientists covered a concrete wall with a 10mm layer of EDCC and subjected it to vibrations corresponding to a 9-point earthquake. A nearby unreinforced wall collapsed at 65% of this intensity, while the coated wall remained unharmed.