Review of the resultsof ph. D. Theses in the area of nanotechnologiesand nanomaterials

To popularize scientific achievements the main results of Russian and for- eign scientists’ research are published in the form of abstract. The research «In- creasing of concrete strength with carbon nanotubes by means of hydrodynamic cavitation» contains the calculation of prime cost of the main raw components which are necessary to produce fine-grained concrete with strength class B55, that demonstrates the economic efficiency of application of CNT as modifying additive for cement composites. Modification of concrete matrix with CNT leads to higher breaking point of compressive strength and that makes it possible to reduce discharge intensity of cement by the strength unit of the material. In this case introduction of 0,05% initial CNT of binder mass into concrete led to 1,5 times increased strength-to-weight ratio. The amount of saved resources was determined as the cost difference between amount of raw materials which are necessary to produce concrete B55 class of traditional composition and the con- crete similar by the class obtained due to introduction of carbon nanomodifier into it. The choice of the cost of 1 gram of multilayer CNT was based on the analy- sis of commercial offers of Russian and foreign companies that are specilized in manufacture and realization of carbon nanomaterials.The specialists may be also interested in the research held by Podgorny I.I. «Materials of autoclave hardening with the use of nanostructured modifier based on magnetic rock of acid content», Satjukov А.B. «Nanomodified composite bind- er for special construction mortars», Hammadi Mustafa Abdul Madzhid Hamid «The method to nanomodify cement concretes with nanomortar», Altynnik N.I. «Aeroconcrete of autoclave hardening with the use of nanostructured modifier», Volkov D.S. «Complex approaches to characterization of nanodiamonds of detona- tion synthesis and their colloid solutions», Ermolin М.S. «Rectification of nano- and microparticles in rotating spiral frames when analyzing polydispersed samples», Aloviddinov А.D. «Investigation of the structure of mechanical and electrophysical properties of natural fibers modified by nanosize particles», Kiselev D.G. «Nano- modified sulphur binders for building materials of general and special purpose», Emelianov А.I. «Polymer metal-containing nanocomposites based on 1-vinyl-1,2,4- triazole», Serchacheva N.S. «Polystyrene suspensions containing nanoparticles of metal oxides», Korotkih D.N. «Increased strength and crack resistance of the structure of modern cement concretes: the problems of material science and tech- nology», Soloviova Т.А. «Efficient cement compositions modified with carbon ma- terials» et al.