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CAST CONCRETE WITH THE USE OF Copper PRODUCTION WASTES AND NANO SILICA

Вестник МГСУ 9/2017 Том 12
  • Kravtsov Aleksey Vladimirovich - Kostroma State Agricultural Academy (KSAA) Postgraduate student, Department of Building Technology, Management and Economy, Kostroma State Agricultural Academy (KSAA), 34 Uchebniy gorodok, Karavaevo poselok, Kostroma oblast, 156530, Russian Federation.
  • Tsibakin Sergey Valerievich - Kostroma State Agricultural Academy (Kostroma SAA) Candidate of Technical Sciences, Associate Professor, Kostroma State Agricultural Academy (Kostroma SAA), poselok Karavaevo, Kostromskaya oblast', 156530, Russian Federation.
  • Evseeva Tatyana Mihaylovna - Kostroma State Agricultural Academy (Kostroma SAA) Student, Kostroma State Agricultural Academy (Kostroma SAA), poselok Karavaevo, Kostromskaya oblast', 156530, Russian Federation.
  • Sobolev Konstantin Gennadievich - University of Wisconsin-Milwaukee Candidate of Technical Sciences, Professor, Head of Department of Construction and Environmental Protection, University of Wisconsin-Milwaukee, P.O. Box 784, Wisconsin, Milwaukee, USA, 53201.
  • Potapov Vadim Vladimirovich - Scientific Research Geotechnological Center Far Easter Branch of Russian Academy of Sciences Doctor of Technical Sciences, Professor, Chief Scientific Officer, Scientific Research Geotechnological Center Far Easter Branch of Russian Academy of Sciences, 30 North-East shosse, Petropavlovsk-Kamchatsky, Russian Federation, 683002.

Страницы 1010-1018

Subject: applying mineral microfillers based on technogenic waste of non-ferrous metallurgy together with nano silica in the technology of cast and self-compacting concrete is the subject of the paper. The results of the previous experiments proved the effectiveness of the use of ground copper slag in the technology of cast concrete mixtures. However, there are no research results on the combined work of the microfiller and nanoparticles in plastic concrete mixtures. Research objectives: determining the optimal range of the use of nano silica in cast concrete mixtures with copper slag filler from the viewpoint of conservation of plasticity of the concrete mixture and increase of the concrete strength. Materials and methods: plasticity of the concrete mixture was determined according to spread of a small cone on the shaking table by the method developed in NRU MGSU. The strength of concrete samples was checked according to GOST 10180-2012. Statistical processing of the obtained results was carried out by the least square method. Results: plots showing dependence of plasticity of the concrete mixture and strength of cast concrete with ground copper slag on the dosage of nanoparticles and also the influence of the dosage of superplasticizer on the indicated properties at high values of the content of nano silica were obtained. Regression equations for all specified dependencies were derived. Conclusions: it is established that the introduction of nano silica in a dosage of 0.1…0.5 % of cement weight positively affects the concrete strength when used in conjunction with copper slag and superplasticizer. The developed compositions of cast fine-grained concrete mixtures can be used in high-density reinforcement concrete structures with strict requirements for size of fillers and plasticity of the concrete mixture.

DOI: 10.22227/1997-0935.2017.9.1010-1018

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UTILIZATION OF MINERAL FIBER WASTE IN THE PRODUCTION OF GYPSUM PRODUCTS

Вестник МГСУ 12/2017 Том 12
  • Petropavlovskaya Viktoriya Borisovna - Tver State Technical University (TvSTU) Candidate of Technical Sciences, Associate Professor, Building products and constructions Department, Tver State Technical University (TvSTU), 22 Af. Nikitina naberezhnaya, Tver, 170026, Russian Federation.
  • Novichenkova Tat’yana Borisovna - Tver State Technical University (TvSTU) Candidate of Technical Sciences, Associate Professor, Building Products and Constructions Department, Tver State Technical University (TvSTU), 22 Af. Nikitina naberezhnaya, Tver, 170026, Russian Federation.
  • Bur'yanov Aleksandr Fedorovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Associate Professor, Professor of Technology Binders and Concretes Department, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Solov'ev Vitaliy Nikolaevich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, Professor of the Department of Construction of Thermal and Nuclear Power Facilities, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Petropavlovskii Kirill Sergeevich - Tver State Technical University (TvSTU) Post-graduate student, Department of Higher Mathematics, Tver State Technical University (TvSTU), 22 Af. Nikitina naberezhnaya, Tver, 170026, Russian Federation.

Страницы 1392-1398

Subject: the effectiveness of using compositions with the use of basalt fibers is proven, but the composition must be selected depending on the binder and additives chosen. Research objectives: we examine the possibility of waste recycling of basalt fiber production during manufacturing of modified gypsum composite material with improved characteristics. Materials and methods: as a raw material, a gypsum binder of Samara production was used. As a reinforcement additive, a disperse waste of basalt fiber production of Tver region was used. Studying characteristics of the gypsum binder and modified mixture, and also comparative analysis of these characteristics by average density, total porosity, strength in compression and flexure of the gypsum composite were carried out using standard techniques. Results: dependence of physical and mechanical properties of the modified gypsum material on the content of the basalt fiber additive is established. It was found that an increase in concentration of the additive requires an increased water content or additional use of plasticizer. Conclusions: modification of gypsum stone with a mineral basalt additive will increase the strength, density and durability of thin-walled gypsum products, and, consequently, the demand for products due to ensuring their high quality in transportation and installation.

DOI: 10.22227/1997-0935.2017.12.1392-1398

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Glass-ceramic cellular material based on dispersed glass

Вестник МГСУ 7/2014
  • Vaysman Yakov Iosifovich - Perm National Research Polytechnic University (PNRPU) Doctor of Medical Sciences, Professor, scientific supervisor, Department of Environmental Protection, Perm National Research Polytechnic University (PNRPU), 29 Komsomol’skiy pr., Perm, 614990, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Ketov Petr Aleksandrovich - State National Research Polytechnical University of Perm (PSTU SNRPUP) postgraduate student, Department of Environmental Protection, State National Research Polytechnical University of Perm (PSTU SNRPUP), 29 Komsomol’skiy prospect, Perm, 614990, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Potapov Aleksandr Dmitrievich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Chair, Department of Engineering Geology and Geoscology, Moscow State University of Civil Engineering (MGSU), 26, Yaroslavskoe shosse, Moscow, 129337, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .

Страницы 85-92

High thermal resistance of heat insulating materials in real conditions is due to the presence of isolated gas cavities, usually air, in the material content. In order to create a cellular glass-ceramic material based on dispersed glass with high consumer characteristics and acceptable cost it’s necessary to change sulfate powder technology of making foam glass and replace the use of specialty glass to waste glass at low temperatures of glass forming. The use of waste glass as a raw material solves an important environmental problem. High level of vapor permeability of foam glass would extend the use of this material in fencing constructions. Heat treating of dispersed glass composite material in the matrix of hydrate sodium polysilicates leads to the formation of porous structured glass-ceramic with high heat insulating parameters. Engineering proposal allows using waste glass as a raw material instead of specialty glass.

DOI: 10.22227/1997-0935.2014.7.85-92

Библиографический список
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Rice straw recycling problems

Вестник МГСУ 7/2013
  • Gorbunov German Ivanovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Technology of Finishing and Insulation Materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Rasulov Olimdzhon Rakhmonberdievich - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Technology of Finishing and Insulation Materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .

Страницы 106-113

The authors present a fairly extensive analysis of the state of the cereal crop industry in the Republic of Tajikistan and other regions of East and South-East Asia. Problems of generation of a huge amount of waste in the course of processing of cereals, in particular, rice straw processing by-products, are raised by the authors. The authors propose their original solution to the problems in question. Besides, traditional and original methods of application of rice straw in low-rise construction and production of building materials are presented in the article. The major part of the article covers traditional methods of disposal of rice straw as a raw material used in the production of cellulose, lignin biodegradable plastic, paper, cardboard, wicker products, thermal energy, etc. Another important issue, covered in the article, is the study of the straw/husk burning process, as well as the possibility of generating ash that contains various forms of silica. The fact that the ash content of the straw, according to various sources, varies within the range of16–20 %, and its silica content may be up to 89–91 % make it possible for the authors to state that straw and husk ash can be used as an active mineral additive in the production of effective building materials. It is noteworthy that the problems raised in the article are relevant, and their practical solutions are feasible.

DOI: 10.22227/1997-0935.2013.7.106-113

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Environmental and economic aspects of using marble fine waste in the manufacture of facing ceramic materials

Вестник МГСУ 8/2014
  • Zemlyanushnov Dmitriy Yur'evich - Moscow State University of Civil Engineering (MGSU) postgraduate Student, Department of Construction Materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Sokov Viktor Nikolaevich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Department of Construction Materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Oreshkin Dmitriy Vladimirovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Chair, Department of Construction Materials; +7 (499) 183-32-29., Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .

Страницы 118-126

This work considers economic expediency of using marble fine waste in facing ceramic materials manufacture by three-dimensional coloring method. Adding marble fine waste to the charge mixture reduces the production cost of the final product. This waste has a positive impact on the intensification of drying clay rocks and raw as a whole, which increases production efficiency. Using marble fine waste as a coloring admixture makes it possible to manufacture more environmentally friendly construction material with the use of wastes of hazard class 3 instead of class 4. At the same time, disposal areas and environmental load in the territories of mining and marble processing reduce significantly. Replacing ferrous pigments with manganese oxide for marble fine waste reduces the cost of the final product and the manufacture of facing ceramic brick of a wide range of colors - from dark brown to yellow.

DOI: 10.22227/1997-0935.2014.8.118-126

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DEVELOPMENT OF ENVIRONMENTALLY SAFE, ENERGY EFFICIENT CELLULAR CONSTRUCTION MATERIAL CORRESPONDING TO THE PRINCIPLES OF GREEN CONSTRUCTION

Вестник МГСУ 3/2018 Том 13
  • Ketov Petr Aleksandrovich - Perm National Research Polytechnic University (PNRPU) Postgraduate Student, Department of Environmental Protection, Perm National Research Polytechnic University (PNRPU), 29 Komsomol’skiy prospect, Perm, 614990, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .

Страницы 368-377

Foamed glass is one of the most energy efficient construction materials. However, the existing technologies of foamed glass manufacture do not correspond to the principles of green construction because a special sulphate glass is used, produced from natural raw materials, and it causes emission of pollutants at all stages of the life cycle of the material. The resource and energy-saving technology for producing environmentally safe energy-efficient foam glass based on off-grade glass cullet, which is a component of solid municipal waste, has been developed, substantiated and implemented. In solving a particular problem of foam glass production, an algorithm of development of an environmentally safe building material based on or with addition of production and consumption wastes was proposed and approved. This algorithm is consistent with the principles of green construction. Subject: development of the technological scheme of manufacture and recycling of energy efficient cellular material corresponding to the requirements of ecological safety at all stages of its life cycle; proposition of an algorithm that solves the general problem of development of environmentally friendly construction materials and conforms to the principles of green construction. Materials and methods: analysis of existing technical solutions for manufacture and recycling of foam glass from the viewpoint of green construction principles and proposition of alternative environmentally friendly solutions. Results: as a result of elimination of the drawbacks inherent in the existing foam glass at all stages of its life cycle, technical solutions that ensure environmental safety of the material were substantiated. Conclusions: the results can be used for development of construction materials corresponding to the principles of green construction.

DOI: 10.22227/1997-0935.2018.3.368-377

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