High performance concrete of increased resistance to biological corrosion

It is shown that an increased resistance of concrete to biological corrosion can be achieved by using a high-performance complex chemical admixture containing reactive nanodispersed particles of silicon dioxide in combination with chromium oxide Cr2O3. Such an additive supports the formation of high-density concrete structure with low porosity, as well as the formation of poorly soluble new hydrate phases, which possibly contributes to the increase of its strength and resistance to the effects of biofouling by microorganisms.

Author: V.Y. Solovieva, I.V. Stepanova, D.V. Soloviev

Section: Concrete

Keywords: biological corrosion, stability, microorganism waste products, dense structure, strong hydrated phases, chemical additive