The properties and main characteristics of the large-tonnage waste of industry - hydrolytic lignin, as well as the direction of its rational use are considered. The results of an experiment on the effect of the lignin of the Kosivinsk hydrolysis plant on the main properties of the cement-sand composition are presented. It is shown that the addition of hydrolytic lignin in an amount of 15-20% by mass in exchange for the binder will yield a building material with a mark of average density D1900-D2000 and a class of compressive strength B5-B7.5.

Keywords: hydrolytic lignin, waste, low-rise construction, wall material, secondary raw materials, utilization

The introduction of the comprehensive program "Boundary control" is considered on the example of a control and experimental group. The results of the effectiveness of this complex have been proved practically and theoretically: the progress of cadets has increased, and calculations of statistical estimates have shown that the calculated value is less than the critical one. That is, it can be concluded that the differences in the estimates between the experimental and control groups are statistically insignificant at a given significance level. That is, for comparison, approximately equal in knowledge two groups were taken.

Keywords: Student's criterion, mathematical statistics, representative sample, experiment, group sampling, expert assessments

The article presents the analysis of dust pollution of atmospheric air in the vicinity of the enterprise for the production of gypsum products. Given the dynamics of changes in the concentration of fine dust, and also investigated the characteristics of the distribution of concentrations of fine dust РМ0.3, , PM2. 5, РМ5 , PM10 etc.

Keywords: atmospheric air, fine dust, PM0.3, PM0.5, PM1.0, PM2.5, PM5 and PM10, dust concentration, speed, wind direction, air humidity, integral mass distribution function, particle diameter by diameter

dependences of value distribution of hardness of an armature of the class A500C of different diameters are constructed. For determination of the minimum values the method of graphic transition from selective data to set is used. Calculation of the smallest values of hardness using the shift received in the analysis of set is carried out.

Keywords: selection, armature, population of final volume

The paper reports that there currently exist various technologies and methods for achieving energy efficiency of reconstructed buildings and facilities. It highlights the fact that practically all mansard construction technologies conform to the up-to-date requirements for energy efficiency and resource conservation. At the same time, the analysis of a number of foreign and national publications shows that the modern trends in ensuring energy efficiency of buildings and facilities are based on the use of solar, thermal and biocincrete panels, which also prove to be environmentally friendly.

Keywords: mezzanine, solar panels, thermal panels, biocincrete panels, efficiency ratio of solar energy generating panels, energy efficiency, environmental safety

The calculations and assessment of the impact of the built dormitories on the design of the existing building in accordance with the requirements of SP 22.13330.2011 and techniques of the FEM program Plaxis 2012.01 (Build 8962)

Keywords: pile foundations, Plaxis program, Geology

The need for efficient production organization in modern economic conditions forces machine-building enterprises to introduce and maintain the functioning of various production systems based on lean manufacturing principles. One of the prerequisites for the qualitative training of graduates for such enterprises is the formation of their competence in the field of lean production. The system approach to the formation of these competences is considered. The basis is based on modern educational technologies that ensure the activation of educational and cognitive activities of students and the effectiveness of the educational process in general.

Keywords: lean manufacturing, interactive training technology, a systematic approach to learning, form and method of teaching, competence, machine-building production, technological process, practice-oriented training, production system, training effectiveness

The algorithm of forming of kinematic surfaces with a constant cross-sectional area based on a complex equiaffine transformation of the plane (elliptic rotation) is considered. Functional dependences of elliptic rotation parameters for the formation of a one-parameter family of equiaffine lines on a plane are determined. At the same time the received families of lines can not include the line prototype and the line image at the set constant parameters of rotation. Conditions of receiving the line prototype and the line image at the set parameter of family and the parametrical equations of shift of the geometrical center of a curve are defined. The conditions for the formation of central surfaces are determined. It is established that the surfaces obtained can be periodic. The domains of admissible values of the parameters and functions included in the parametric equations of one-parameter families of curves are determined. It is shown that as a closed loop one can use not only an analytically determined curve, but also a polyline (for example, a polygon). Examples of kinematic surfaces are given.

Keywords: kinematic surface, equiaffine transformations, algorithm, elliptic rotation, affine-like curves, parametric equations, line-image, prototype line

The description of information exchange methods between CAD and CAE systems is presented. The description of the modular system of design and strength analysis of geodesic shells GeoTran is given. Translation of geometric models from ArchiCAD to Patran/Nastran/Patran has drawbacks. It is proposed to implement the translation of geometric models in a neutral SAT format. Developed a translator geometric models of single-contour geodetic shells from ArchiCAD in SAT format. The translator allows you to automate the exchange of information between the CAD system ArchiCAD and various CAE systems designed for strength analysis.

Keywords: data exchange between CAD and CAE systems, neutral file, SAT and OBJ formats, geodesic shells, translation of geometric models

The Algorithm and program for calculating for the strength, deformation and fracture toughness of reinforced concrete structures. It has been improved under various regimes of slightly-repeated loads on the basis of the development of scientific ideas about the effect of the own field of stresses of concrete with the EMBALIT and SP, as well as the establishment of low-cycle fatigue strength of such concretes and limits fatigue strength from the main factors. The main regularities of development of own deformations and stresses of concrete during hardening under conditions of restriction of expansion deformations and without restriction are revealed.

Keywords: design features, self-expanding concrete, embalite, calculation of strength of reinforced concrete columns, low-cycle fatigue strength, superplasticizers, embalit additive, calculation of crack resistance of reinforced concrete structures, intrinsic defor

The authors (of the research) suggest choosing the most eco- and energy-efficient engineering system in order to purify the air of the dyrer drums dust. The choice should be made on the basis of the analysis and evaluation of the dust properties and determination of the control methods of the dust aerosol stability, which, eventually will ensure its effective destruction as a dispersed system in the air purification process.

Keywords: inorganic dust, disperse system, characteristics of pollutant properties, manufacturing company in construction industry, labour safety, brick manufacture, dryer drum, energy parameters

The problem of calibration of a three-axis acceleration sensor is considered. A number of measurements obtained with the sensor at its different orientations in space are used as initial data for calibration. It is assumed that the sensor is stationary for each orientation variant. The measurement data are averaged at each static sensor position, and the averaged results are used as parameters in a system of nonlinear equations that are solved by the Levenberg-Marquardt method. The results of the proposed method in the article are presented in the experiment with a real sensor, which allows to check its effectiveness.

Keywords: three-axis accelerometer sensor calibration, the sensor coordinate system, the coordinate system of the gravitational field, the rotation of the coordinate system, the matrix of coordinate transformation, the correction factor, the average value of the me

A thin circular disk is considered, the material of which exhibits elastic and plastic properties under thermal and force influences. In the central part of the disk, the temperature field is uniform. At the boundary of the disk, pressure and a constant temperature are set. Approximation of a plane stress state is adopted. The additive form of the connection of full, elastic, plastic deformations and deformations under free thermal expansion is considered. Elastic deformations are expressed in terms of stresses according to Hooke's law. A linear approximation of the dependence of the plasticity limit on temperature is proposed. The possibility of neutral loading of the central region of the disk and its external boundary is shown. Especially distinguished is the condition for the plasticity of Tresca.

Keywords: mathematical modeling, elastoplastic body, plane stress state, piecewise-linear plasticity conditions, plastic flow theory, thermoelastic plasticity

The steps of constructing an algorithm for calculating the stressed and strained state of a thin circular disk experiencing thermal and force effects are discussed. A homogeneous temperature field is created in the central part of the disk. Within the framework of the theory of the flow of an ideal elastoplastic body, conditions of general plasticity are considered. It is assumed that the plasticity limit for uniaxial tension is common for all plasticity conditions. Dependencies between the disk radius, the temperature of the central region of the disk and the external pressure, which determine the appearance of plastic regions, are established. For piecewise-linear plasticity conditions of general form, analogous dependences are defined, when singular plasticity regimes are realized at elastoplastic boundaries. For different values ​​of the input parameters of the problem, the stresses, equivalent stresses and the hodograph of the stress vector are given.

Keywords: mathematical modeling, elastoplastic body, plane stress state, piecewise linear plasticity conditions, plastic flow theory, thermoelastic plasticity

In the paper, we give a brief overview of the main developments made personally and under the direct supervision of the professor, academician RANS andIAELPS P. Kudryavtsev. These developments are devoted to the use of sol-gel processes in various branches of science and technology. Using this process, new composite heat-resistant materials, highly disperse materials and thin filmswere created. These developments have made it possible to create new efficient catalysts and highly selective inorganic ion-exchange materials. Based on inorganic ion-exchange materials, a technology was developed to extract lithium from natural brines, which are poor in lithium content. On the basis of sol-gel technology, new composite matrix-isolated flocculants-coagulants were created. These reagents are designed for the treatment of natural and wastewater in order to remove impurities of oil products and heavy metals.

Keywords: Nanomaterials, Sol-Gel Technology, Nanostructured Materials, Composite Materials, Highly Dispersed Materials, Thin Films, Catalysts, Highly Selective Inorganic Ion Exchangers, Extraction of Lithium, Composite Flocculants-Coagulants