Results of researches on improvement of quality of the brick made of clay Kagalnik-3 raw materials are presented. It is defined that raw materials contain a large number of particles less than 1 mm in size that complicates receiving press powder of the recommended granulometriya. In addition, because of high sensitivity of raw materials to drying, on samples there are drying cracks influencing durability and frost resistance. It is defined that for receiving qualitative products, except softer mode of drying, for increase in physico-mechanical characteristics it is necessary to add the mineral modifying additive to furnace charge, and to carry out preparation of press powder with preliminary plastic granulation of weight.

Keywords: clay raw materials, ceramic brick, semi-dry pressing, press powder, sensitivity to drying, advanced plastic recycling, granulation, modifying additive, strength, frost resistance

The high water demand of high-plastic and mushy consistency of concrete with high value of water-to-cement ratio leads to decreasing of consistency value and strength of concrete and also to shrinkage of concrete increasing. The known ways of excess water removal from the mix of concrete ingredients with water are labor-consuming and not always effective enough. We suggest the way of excess water removal using loose moisture capable materials which are enabled to absorb water intensively when contacting the concrete mix. The capacity of powder-like materials to absorb water can be evaluated with maximum molecular moisture capacity and maximum capillary moisture capacity measurement units. Also the criterion of water absorbing capacity of powders is suggested, and the most effective loose moisture capable material between others is defined.

Keywords: water absorbing capacity criterion, loose powder-like materials, concrete mix, water absorbing capacity

The article presents the development of compounds pristovnik glazes for ceramic tiles using the method of mathematical planning Scheffe. The most important rheological properties of glaze slip. Revealed the formation of high-quality glaze coating.

Keywords: ceramic tile, mittavinda glaze, clay Germanskogo deposits, volcanic ash, CTE, rheological properties, plan the Work

the Basic meaning of the content of the article is to reveal the formation of professional competence of students of higher education construction professions on the example of a business game. Business game "facade" is the functional-architectural meeting ambitious designers" was held under the second course in the discipline "Construction materials". The essence of this method is that students demonstrate certain production situation, which is characterized by conditions and actions of its participants. The task is to find the best modern methods of construction technologies. As a rule, the production situation in construction occur on the object, in our game object – the building of the Palace of culture, which was commissioned 10 years ago. During the operation of the building facade cladding in some places, damaged, cracks, and loose tiles. It was necessary to find the right solution for the replacement of the cladding material, to previously conduct a survey and identify the cause of the damage. For this group of students was divided into subgroups and each defined role. Each of the groups in the course of a game functioned, however, all must understand by simulating the situation and content of the actions of other groups. The problem was the following, as a preliminary survey of the damage to the facade of the object (performed measurements, photos, samples provided to the facing surfaces of the facade), it was necessary to establish the cause of the damage and propose the most optimal, effective and meets all the architectural, technological, technical and economic requirements methods of eliminating damage.the new enterprises, redistribution of investments in interests of the organization and development of new production on available floor spaces. The most important organizational economic targets of a diversification of management are presented by innovative activity of the industrial enterprise.

Keywords: ompetence, tudents, nhe business game, research, the industrial situation, building materials and products.

The paper describes influence of different factors on the hardening kinetics of geopolymer binder on the basis of crushed waste from mining and processing of magmatic rocks. The type and dosage of mineral additives to the binder - granulated blast furnace slag, as well as the composition of the activator hardening, dispersibility of components and curing temperature were investigated as factors determining the development of strength of binders. The analytical dependencies describing the effect of the studied factors on the strength of geopolymer binders were obtained.

Keywords: geopolymer, curing kinetics, waste of production and processing of magmatic rocks, blast furnace slag

The article presents the results of research to study the possibility of using volcanic ash in the production technology of ceramic roof tiles. The main afterfiring properties of the masses on the basis of fusible clay and volcanic ash over a wide temperature range. It is found that the masses on the basis of ash have high afterfiring properties

Keywords: ceramic roof tile, volcanic ash, fusible clay, the low-temperaturefiring, sintering interval, afterfiring properties

The paper describes the results of studies on the effect of the dosage of ground gaize of Penza field and polycarboxylate superplasticizer on the properties of mortar constituent of concrete prepared with the use blended cements, containing Portland cement, fly ash, blast furnace slag and silica fume. The study established the equations the bleeding and segregation of mortar constituent of concrete, as well as its strength at different times depending on dosage of superplasticizer and components of blended binder. The negative influence of gaize on the strength greatly reduces by decreasing the water-cement ratio.

Keywords: blended cement, gaize, blast furnace slag, fly ash, superplasticizer, water requirement, slump flow of mixture, strength

The article presents the algorithm of repair work for electricity pilons of transmission line.The technical diagnostics based on complex method includes a visual inspection, instrumental and vibration diagnostics for electricity pilons of transmission lines. Pilons has defects: inclined cracked faces with a length of 25-30 cm , with a crack width of 0,4-0,7 mm . Were selected effective repair compositions for restoring reinforced concrete structures rack transmission towers:modified fine-grained concrete, polymer concrete. The article presents an example of analytical modeling of natural vibrations of a reinforced concrete pilons of transmission lines with defects in the base. This article contains a list of repair works. The material presented can be used in the development of methods of diagnostics and monitoring of technical condition of different structures of the core type.

Keywords: Algorithm, repair, category of defects, non-destructive testing methods, pilons of transmission lines, vibrodiagnostics

The article presents a study on the determination of the resistance to accumulation of residual deformations of asphalt concrete, SMA-11 on the device dynamic tests (PDI) the advantage of these over asphalt concrete stone mastic asphalt concrete SMA-10 GOST 31015.

Keywords: asphalt concrete, stone mastic asphalt concrete mixture, the grain structure, sieve, fraction, residual strain

The results of researching the speed of increasing strength of modified concrete materials in early period of hardening used for mounting underground structures are given. As a result of researching the most effective supplements like D5 and RELAMIX T-2 are determined. The composition of supplement D5 with fillers of ordinary quality and a con drafting 15 sm, it will gain high strength of 6.5 MРa in 18 hours while with RELAMIX T-2 fillers it will be 2.8 MРa. The given results were used for modeling stress strained state of ground mass and concrete fastenings of non- circular shape.

Keywords: Рassage, fastening, composition of concrete, modifier, concrete strength, young modulus, stresses

Are represented the results of studies on the development of the high-temperature (oxidation-resistant) fibroarmirovannykh composites with the application of volcanic pumice. The application of basaltic fibers in the composites makes it possible to increase strength, high-temperature (oxidation-resistant) properties of composite and to decrease shrinkage strain. Are revealed optimum percentage reinforcements by the volume by the fibres of concrete matrix and the relationship of fiber length to the diameter with the application of a method of the mathematical planning of experiment. The mathematical models of the strength properties of the composite are obtained

Keywords: portland cement, volcanic pumice, basaltic fiber, high-temperature (oxidation-resistant) properties, limit, compression strength and bend of the composite

The paper describes influence of the specific surface of the slag additive and silica module of hardening activator of geopolymer binder based on the crushed screenings of granite on shrinkage deformation of mortar component of concrete. It was found that shrinkage of geopolymer binder is most intensively occurs at the early stages of structure formation. Particular importance for the structure formation of geopolymer concrete has shrinkage at the stage of setting and initial strength development that need to be considered by appointment of heat and humidity treatment regimes for factory production of products and structures based on geopolymer concrete.

Keywords: geopolymer, hardening, shrinkage, structure formation, slag, activator curing, grinding waste of crushed granite

В статье приводятся экспериментальные данные о влиянии карбонизации автоклавного ячеистого бетона, под воздействием атмосферного углекислого газа, на коэффициенты упругой поперечной деформации и поперечной деформации ползучести данного материала. Установлено, что с учетом и без учета фактора карбонизации для автоклавных ячеистых бетонов справедлива гипотеза, заложенная в существующие феноменологические теории ползучести, о равенстве и постоянстве этих коэффициентов при кратковременном и длительном действии силовой нагрузки.

Keywords:

The article analyzes the state of urban air. It proved the impact of cement industry on air quality. The article also analyzed the technological process of cement production. As a result, built carrying circuit material flows. Carrying circuit material flows determined that dust is highly polluting air environment, because the dust is released at each stage of production. Analysis of the cement production process has allowed to identify the main objects that are involved in the process of air pollution, as well as to establish their relationship. The result is a physical model of the process of air pollution. Further, on the basis of a physical model of the process of pollution, it is possible to construct a physical model of the process of reduction of air pollution.

Keywords: the air of the city environment, the process of cement production, carrying circuit material flows, physical model, process air pollution, cement dust

Abstract: the Article is devoted to the problem of waste production during construction, operation and liquidation of coal mines of Russia. This work suggests that waste recycling technologies, including for reception of energy based on the modeling and system analysis of the biocenosis. The possibility of realization of innovative methods of processing plethodon using the biocenosis. Quite detailed questions transformation of industrial waste into energy through anaerobic bioconversion. As part of a description of the proposed methodology presents the results of field experiments and action program of recycling of materials at the stage of commercial operation. In particular it justifies the optimization of processing technology on the basis of the selection of the most active biocenosis of microorganisms. Theoretical developments are confirmed by practical data.

Keywords: disposal, technogenic resources, plothole, biotechnology, biotransformation, biocenosis, recycling

Application of connecting joints is today a fast-growing and competitive industry in mounting and installation of reinforcement cages butt overlap. As a result of the study can be concluded that: Among the existing methods of splicing reinforcement stykovanie butt by crimp sleeves and screw coupling, has the good performance of saving labor costs, time and material.

Keywords: fittings, crimp sleeves, screw coupling, welding method, the compound overlap, mating fittings, mechanical clutch, saving, new species, use

In this article authors examine integrated method of ring cross-section concrete constructions diagnostics after the example of overhead contact system pylons. Complex physical-mechanical process of carcass and concrete working needs to take into consideration the state of these components. Authors suggest modern device of magnetic-particle method making for carcass state rating and its location in a pylon body. Concrete jacket defectoscopy may be done with modified device population of ultrasonic diagnostics. Examination zones of constructions are found depending on pylons workload scheme. The authors give correlations which let determine parameters of destructions (cracks) that lead to degradation of load-carrying capability. In the article there are graphic materials got as a result of ultrasonic inspection and mathematical expressions for estimating of residual load-carrying capability with a glance of carcass and concrete destructions.

Keywords: overhead contact system pylons, residual load-carrying capability, ultrasonic diagnostics, hodograph, cracks, carcass corrosion, technical state

The morphology of the modified Portland cement hydration products was studied transmission electron microscopy. The combined effect of polyvinyl alcohol (PVA) and sucrose on the morphology of hydrosilicates nanoparticles has a synergistic character. he presence of PVA enhances the effect of sucrose. The effect of synergism must be considered in the preparation of multicomponent modifier compositions including PVA

Keywords: "modified cement stone, transmission electron microscopy, the morphology of nanoparticles of hydrosilicates, sucrose, PVA, synergistic effect. "

Chimneys and gas-escape channels elements mostly made of such polymer composite (PC) as glass-fiber plastic, persistently work at the output air temperatures below dew point as opposed to other materials, but can be affected by high temperatures during their use. On this reason it was needed to develop and modify new thermosetting bindings for PC matrix – thermal resistant and heatproof. Thermal resistance characteristic of PC is important for protective coverings, whereas heatproof characteristic is applicable for tensed elements. For a construction made of the new more heatproof PC bearing capacity estimation it is necessary to take normative resistance change and new temperature-time factors demonstration into account in their design resistance. The minimal durability value according to the PC product normative document or technical specification can be considered as normative resistance. For the temperature-time durability coefficients appointment of the new and more heatproof PC the common (base) PC coefficients values can be considered but amending their temperature scale proportionally to heatproof change relative to the base PC.

Keywords: polymer composites, glass-fibers, thermal resistance, heatproof, design resistance, chimneys

The article is devoted to improving the quality of non-autoclave aerated concrete. The theoretical aspects is considered, the prescription-processing methods is proposed, results of experimental studies is given. The role of the sequence of introduction of the components and mode of preparation of concrete mixture is studied. The effect of hardeners on the properties of aerated concrete is revealed. It analyzes ways of waste disposal and their appropriate application.

Keywords: Concrete, structure, technology, recipe, recovery, sodium sulfate, partially hydrated cement system, an aluminum suspension, a hardening accelerator, coefficient of structural quality

The article presents the vibration diagnostics method for pilons of transmission lines. Pilons has defects: inclined cracked faces with a length of 25-30 cm , with a crack width of 0,4-0,7 mm . The article presents an example of analytical modeling of natural vibrations of a reinforced concrete pilons of transmission lines with defects in the base. Analytical modeling was based on the hypotheses of Euler-Bernoulli. Built an equivalent model of the pilons with defect in the form of an elastic element, simulating the damage in the area of trapping. The calculation of natural frequencies of first five modes of transverse oscillations for different values of stiffness of the defect. The result of this work is to obtain the dependencies of the relative frequencies from the stiffness of the defect and establishment of sufficiently informative criterion for predicting the alarm state of structures. The material presented can be used in the development of methods of diagnostics and monitoring of technical condition of different structures of the core type.

Keywords: vibration analysis, pilons of transmission lines, the defect, analytic modeling, transverse vibrations, natural vibrations, natural frequencies

Тhe analysis of methods and means of evaluation of technical condition of building structures under construction. The developed algorithm of a complex estimation of state of reinforced concrete structures with expired period of preservation. The algorithm of complex diagnostics of a condition of constructions involving complementation of known techniques of estimation of parameters of safety of structures with joint processing of the results, is an effective tool for assessing the actual condition of structures and end-of-life.

Keywords: safe operation, defect, nondestructive control methods, dynamic loading, vibration diagnostics, vibration sensors

The peculiarities of composition and properties of drill cuttings from fields in Orenburg region, the possibility of their use in the manufacture of ceramic products by technology pre-granulation of raw materials and subsequent pressing. The role of liquid glass in the formation of granules and the properties of synthesized stone.

Keywords: drill cuttings, industrial raw materials, granulation, extrusion, ceramic matrix composite structures

The possibility of recycling waste product obtained in the process of oil drilling, at the facilities of JSC "Orenburgneft" in the manufacture of products of building ceramics. Dobropolye investigated the properties of the original raw material is drilling cuttings and clay deposits Buzuluk, Dobropolye firing properties of the products on the basis of the three-component mixture. The research is aimed at recycling and disposal and recycling of drill cuttings that will significantly improve the environmental situation and will create a reserve of cheap raw materials for production of ceramic building materials.

Keywords: Drill cuttings as a source of raw materials for production building ceramics plastic molding

The article examines the impact of particulate reinforcement modified basalt microfiber (MBM) on the strength properties of cement mortars. Unlike conventional particulate reinforcement fibers reinforcement solutions modified microfibers based on the assumption that the introduction of such mortar mixture nanomodified dispersion-reinforcing fillers leads to an increase in the composition of the cement stone elongated structures extending for hundreds of micrometers, which leads to a corresponding hardening solutions based on these nanoadditives. Thus, there is a dynamic dispersed reinforcement cement stone. As the nano-additive authors used a modified basalt microfibre (MBM). The effect of MBM on the strength properties and mobility of mortars of various compositions with equal water-cement ratio: control (without additives and MBM) with MBM, with the addition of superplasticizer and with the addition of superplasticizer and MBM. Also, studies were conducted on a cement-sand mortar of normal consistency with the addition of MBM and superplasticizer. As a result of entering into the mass of the modified artificial stone microfiber obtained with improved strength properties (flexural strength and compressive strength), indicating the feasibility of introducing such microfibers in mortar mixes. However, significantly reduced mobility mixtures which requires the introduction of the plasticizer.

Keywords: disperse reinforcement, modified microfiber, reinforcement cement stone, strength properties, nano-additive