Nanotechnologies in Construction: A Scientific Internet-Journal

37-62

Authors: Kudryavtsev P.G., Kudryavtsev N.P., Figovsky O.L.

Simple aluminum compounds are precursors for all processes for the production of nanocomposite materials based on aluminum oxides. The present work analyzes the state of Al3+ aluminum ions in aqueous solutions. The state of Al3+ions in aqueous solutions determines the mechanism and structure of the produced nanocomposites. The analysis of phase transformations in systems of aluminum salts, hydrated oxides and oxides is carried out. The main conditions to obtain final materials are determined on the basis on these data. An analysis of various methods used to prepare colloidal solutions of hydrated aluminum oxides has been performed. Such solutions are the main precursors in the production of nanocomposite materials based on aluminum oxides.

91-104

Authors: Trinker A.B.

To solve the problems of concrete quality and ecology the Russian science has been efficiently using wastes of chemical, metallurgical, biomedical and food production in construction for 70 years at the same time improving environment. The beginning of the ХХI century was marked by the appearance of the term «nanotechnology». The first softener, invented 70 years ago, made it possible to create heavy-duty and super durable concrete which was used in construction of the Ostankino tower, the highest tower in the world. It successfully withstood 1000-degree fire in 2000 though common Portland cement was employed. This unique example of scientific research performed in production allowed constructing skyscrapers of reinforced concrete in the ХХI century.