Nanotechnologies in Construction: A Scientific Internet-Journal

55-92

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.

107-122

Authors: Slavcheva G.S., Artamonova O.V.

The paper considers the problem of creating a wider class of building materials used for 3D printing. From the point of view of classical rheology of disperse systems, the application of 3D printing technology in construction has been analyzed. Theoretical analysis of the models of rheological behavior is performed according to state of their structure and the dynamic of the 3D printing processes such as mixing, pumping, extrusion, multilayer casting and structural built-up in the printing layers. The main factors and criteria for the stability of heterogeneous disperse systems in dynamic and static 3D printing processes have been identified.

142-161

Authors: Boldyrev A.M., Orlov A.S., Guschin D.A., Rubtsova E.G., Sannikov V.G.

According to statistics, up to 80% of all fixed metal structure accidents are associated with welded joints. However, most of the emergency destructions, usually caused by non-metallic inclusions in the weld metal, are fragile. The probability of brittle fracture decreases with increasing plasticity. And plasticity, that depends on the mobility of dislocations to a great degree, decreases with temperature decrease and increase in the strain rate. The plasticity of the metal is a tructurally sensitive property and depends on the type of crystal lattice that determines the number of densely packed directions and slip planes. Low-alloy steels, mainly used in welded steel structures, have a volume-centered cubic lattice with a relatively small number of planes and sliding direction.

42-62

Authors: Babushkin E.V. Buyanova M.G., Agliullin A.Kh., Koneusev G.V., Teptereva G.A.

The experience of drilling shows that the use of modern drilling equipment does not always ensure a high quality of well construction in the sections represented by clay rocks. This is probably due to the fact that when selecting and applying drilling fluids, differences in the properties of the clay are not taken into account, and the properties of drilling fluids are selected without taking into account the features of interaction with rocks. Many complications and accidents in the construction of wells in the regions of Western Siberia are due to the presence of highly colloidal wet clays well hydrated and swelling upon contact with the drilling mud, as well as microfractured mudstones prone to screes and landslides in the geological section, which are opened in one dollying, which leads to the deviation of drilling fluid parameters from set values, packing, lowering the mechanical drilling speed, breaking the stability of the barrel, reducing commercial speed of well construction.

100-113

Authors: Sergeyeva O.Yu

«Smart production» is a new model of industrial development of the 21st century on the basis of digital technologies, which already to some extent operates in the form of a production system that creates products and services on non - markets, contributing to the improvement of a comfortable life of the person, the population. Active development in the 21st century of information technologies and concepts contributed to the creation and development of yberphysical systems that integrate computing resources into physical processes.

135-152

Authors: Kuzeev I.R, Popova S.V., Abyzgildina S.Sh.

Studies devoted to production of metal fullerene layer in steels when introducing carbon from organic and inorganic media were performed. Barium carbonate was used as an inorganic medium and petroleum pitch was used as an organic medium. In order to generate the required amount of fullerenes in the process of steel samples carbonization, optimal temperature mode was found. The higher temperature, absorption and cohesive effects become less important and polymeric carbon structures destruction processes become more important. On the bottom the temperature is limited by petroleum pitch softening temperature and its transition to low-viscous state in order to enhance molecular mobility and improve the possibility of their diffusion to metal surface. Identification of fullerenes in the surface modified layer was carried out following the methods of IR-Fourier spectrometry and high-performance liquid chromatography.

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.

37-64

Authors: Sergeev V.V., Belenkova N.G., Zeigman Yu.V., Mukhametshin V.Sh.

One of the most relevant directions for research and development (R&D) in the area of oil and gas fields development is to study physicochemical impact onto petroleum reservoir to enhance development rate and increase oil recovery factor. Wide range of fields where nanoscale particles can be applied within this direction shifted the level of physicochemical processes studies from microscale to nanoscale, that caused significant advancement of the oil and gas industry as a whole.

91-106

Authors: Ayzenshtadt A.М., Frolova M.А., Shinkaruk A.А.

A schematic diagram of the integrated approach for assessing the toxicological properties of rocks, taking into account their physicochemical properties, was proposed. This methodology was tested on the basalt samples taken from the Myandukha deposit (Arkhangelsk region). The paper presents data of the chemical composition on the basis of which the value of the specific mass energy of atomization of the raw material of the rock was calculated. The energy parameters of the micro- and nanosystems of the sample were calculated: free surface energy and surface activity. To perform toxicological evaluation of the analyzed material a new generation sequencing (NGS) method, the metagenomic analysis, and the MTT method for determining the viability of cell cultures were used.

131-150

Authors: Katamanov V.L., Nazarov A.M., Garankov I.N., Tuktarova I.O.

The paper shows that for majority of technological plants used to process hydrocarbon raw materials when operating a problem of formation of deposits in still-head pipes after the rectifying and stabilization columns, furnaces and other technology devices in oil processing is still of great importance. The structure of still-head deposits of furnace coils and rectifying columns has been studied by the example of small technological plant (STP) of JSC Kondensat (Aksay, the Republic of Kazakhstan). It was determined that key components of these deposits are sulfides of iron and copper as well as elementary sulfur.

168-180

Authors: Mazitova A.K., Aminova G.K., Maskova A.R., Sabitov I.N., Nedoseko I.V.

One of the main large-capacity polymers of modern chemical industry is polyvinylchloride (PVC). Polyvinylchloride is characterized by many useful engineering properties – chemical firmness in different environments, good electric properties, etc. It explains immensely various use of materials on the basis of PVC in different engineering industries. It is cable, building, light industries, mechanical engineering and automotive industry where PVC is widely applied. One of the reasons why PVC production is dramatically growing is that there is no yet other polymer which could be subjected to such various modifying as it is done with PVC.

36-52

Authors: Zeigman Yu.V., Belenkova N.G., Sergeev V.V.

Since the beginning of the 21st century scientific research devoted to properties of nanosized particles and their industrial application in the industry of oil and gas fields development has been rapidly evolving. The use of nanosized particles can significantly rise efficiency of technological solutions, and that fact determines this research area as the most promising today. In the area of oil and gas fields development one of the general application for nanoparticles is the development of high-performance technological fluids with new or improved physico-chemical properties. The ability of nanoparticles to modify wettability of the rock surface and to be fixed on the adsorption-solvation stratums of globules makes them a unique tool to regulate physicochemical properties of technological fluids and physical properties of rocks.

76-93

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

In this work rheological studies of the gelling process were carried out. We have developed a measuring system for studying the rheology of the gelation process. It consisted of several measuring cells of the Weiler-Rebinder type, system for automatic regulation of the composition of the medium and thermostabilization system. This complex is designed to measure the dependence of the value of the ultimate shear stress as a function of time, from the start of the sol-gel transition to the complete conversion of the sol to the gel.

116-133

Authors: Akhmetov R.T., Andreev A.V., Mukhametshin V.V.

The displacement factor is important information when it is necessary to evaluate oil production dynamics and the prospects of development intensification and oil recovery enhancing methods, including nanotechnological methods. However, up to date there are no reliable oil-field methods to predict this parameter in situ well, under conditions of the natural reservoirs occurrence, and that causes this important parameter not to be taken into account when the impact on the bottomhole formation zone effectiveness is evaluated. In this paper the authors propose a methodology for prediction of the displacement factor that employs field geophysics data and that makes it possible to estimate this parameter in each geological cross-section both in the section and in the deposit area.