New eco-concrete is stronger than steel and is not afraid of earthquakes

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.