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DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

The results of masonry and reinforced masonry research

Vestnik MGSU 3/2014
  • Sokolov Boris Sergeevich - Kazan State University of Architecture and Engineering (KazGASU) Doctor of Technical Sciences, Professor, corresponding member of the Russian academy of architecture and building sciences, head, Department of Reinforced Concrete and Masonry Structures, Kazan State University of Architecture and Engineering (KazGASU), 1 Zelyonaya St., Kazan, 420043, Republic of Tatarstan; (843) 238-25-93; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Antakov Aleksey Borisovich - Kazan State University of Architecture and Engineering (KazGASU) Candidate of Technical Science, Associate Professor, Department of Reinforced Concrete and Masonry Structures, Kazan State University of Architecture and Engineering (KazGASU), 1 Zelyonaya St., Kazan, 420043, Republic of Tatarstan; (843)273-03-22; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 99-106

In the article the survey results of durability and crack resistance investigation of masonry are presented. The aim of the investigations is improving calculation methods of masonry and reinforced masonry. The relevancy of the problem is determined by the necessity of new efficient materials implementation. In accordance with scientific search methodology complex investigations were carried out, which includes gathering, analyzing and revising the existing data on the topic together with determining essential factors and their value rate. Within the framework of the investigations the features of masonry have been studied. The developed calculation method on the basis of the theory of resistance of anisotropic materials at the compression, which reflects the stress-strain state features and nature of destruction, allows to carry out an assessment of durability and crack resistance of the compressed members and structures made of masonry. The research results can be used at revising or updating the existing normative documents.

DOI: 10.22227/1997-0935.2014.3.99-106

References
  1. Sokolov B.S. Teoriya silovogo soprotivleniya anizotropnykh materialov szhatiyu i ee prakticheskoe primenenie: monografi ya [Theory of Strength Resistance to Compression of Anisotropic Materials and its Practical Application. Monograph]. Moscow, ASV Publ., 2011, 160 p.
  2. Sokolov B.S., Antakov A.B. Issledovaniya szhatykh elementov kamennykh i armokamennykh konstruktsiy [Study of Compressed Elements of Masonry and Reinforced Masonry Structures]. Moscov, ASV Publ., 2010, 104 p.
  3. Onishchik L.I. Kamennye konstruktsii [Masonry Structures]. Moscow, Gosudarstvennoye Izdatel'stvo stroitel'noy literatury Publ., 1939, 208 p.
  4. SP 15.13330.2012. Kamennye i armokamennye konstruktsii. Normy proektirovaniya [Regularities 15.13330.2012. Masonry and Reinforced Masonry Structures. Design Norms]. Minregion Rossii Publ.. Moscow, 2012, 78 p.
  5. Sokolov B.S., Antakov A.B., Fabrichnaya K.A. Kompleksnye issledovaniya prochnosti pustotelo-porizovannykh keramicheskikh kamney i kladok pri szhatii [Complex Investigations of Hollow Porous Ceramic Masonry under Compression]. Vestnik grazhdanskikh inzhenerov [Proceedings of Civil Engineers]. 2012, no. 5(34), pp. 65—71.
  6. Eurocode 6. Design of Masonry Struktures. Part. 1-1: General Rules for Buildings. Rules for Reinforced and Unreinforced Masonry. Brussels, 1994, 200 p.
  7. Zuccyini A., Louren?o P.B. Mechanics of Masonry in Compression. Result from a Homogenization Approach. Computers and Structures. 2007, vol. 85, no, 3—4, pp. 193—204. DOI: 10.1016/j.compstruc.2006.08.054.
  8. Dykhovichnyy Yu.A., Kolchunov V.I., editors. Zhilye i obshchestvennye zdaniya: kratkiy spravochnik inzhenera-konstruktora [Residential and Public Buildings: Quick Reference of Design Engineer]. Moscow, 2011, ASV Publ., vol. 1, 360 p.

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Using rice straw to manufacture ceramic bricks

Vestnik MGSU 11/2014
  • 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; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • 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; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 128-136

In the article, the co-authors offer their advanced and efficient methodologies for the recycling of the rice straw, as well as the novel approaches to the ceramic brick quality improvement through the application of the rice straw as the combustible additive and through the formation of amorphous silica in the course of the rice straw combustion. The co-authors provide characteristics of the raw materials, production techniques used to manufacture ceramic bricks, and their basic properties in the article. The co-authors describe the simulated process of formation of amorphous silica. The process in question has two independent steps (or options): 1) rice straw combustion and ash formation outside the oven (in the oxidizing medium), and further application of ash as the additive in the process of burning clay mixtures; 2) adding pre-treated rice straw as the combustible additive into the clay mixture, and its further burning in compliance with the pre-set temperature mode. The findings have proven that the most rational pre-requisite of the rice straw application in the manufacturing of ceramic bricks consists in feeding milled straw into the clay mixture to be followed by molding, drying and burning. Brick samples are highly porous, and they also demonstrate sufficient compressive strength. The co-authors have also identified optimal values of rice straw and ash content in the mixtures under research.

DOI: 10.22227/1997-0935.2014.11.128-136

References
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  4. Monsef Shokri R., Khripunov A.K., Baklagina Yu.G., Gofman I.V., Astapenko E.P., Smyslov R.Yu., Pazukhina G.A. Issledovanie komponentnogo sostava risovoy solomy IRI i svoystv poluchaemoy iz nee tsellyulozy [Investigation of the Composition of Rice Straw IRI and the Properties of Cellulose Obtained from It]. Novye dostizheniya v khimii i khimicheskoy tekhnologii rastitel'nogo syr'ya : materialy III Vserossiyskoy konferentsii 23—27 aprelya 2007 goda: v 3-kh knigakh [New Achievements in Chemistry and Chemical Technologies of Vegetable Raw Materials : Materials of the 3rd All-Russian Conference, April, 23—27, 2007 : in 3 volumes]. Barnaul, AltGU Publ., 2007, vol. 1, pp. 53—55. (In Russian)
  5. Vurasko A.V., Driker B.N., Mozyreva E.A., Zemnukhova L.A., Galimova A.R., Gulemina N.N. Resursosberegayushchaya tekhnologiya polucheniya tsellyuloznykh materialov pri pererabotke otkhodov sel’skokhozyaystvennykh kul’tur [Resource Saving Technology for Obtaining Cellulose Materials in Case of Crop Residues Processing]. Khimiya rastitel’nogo syr’ya [Vegetable Raw Materials Chemistry]. 2006, no. 4, pp. 5—10. (In Russian)
  6. Vurasko A.V., Driker B.N., Galimova A.R., Mertin E.V., Chistyakova K.N. Patent RF ¹ 2418122, MPK D21C3/26, D21C3/02, D21C3/04, D21C5/00. Sposob polucheniya tsellyulozy iz solomy risa. Zayavl. ¹ 2010118642/12, 07.05.2010; opubl. 10.05.2011. Byul. ¹ 13 [Russian Patent no. 2418122. MPK D21C3/26, D21C3/02, D21C3/04, D21C5/00. Method of Obtaining Cellulose of Rice Straw. No. 2010118642/12, Appl. 07.05.2010; Publ. 10.05.2011. Bull. no. 13]. Patent holder Ural State Forest Engineering University; 5 p. (In Russian)
  7. Dobrzhanskiy V.G., Zemnukhova L.A., Sergienko V.I. Patent RF ¹ 2106304. Sposob polucheniya vodorastvorimykh silikatov iz zoly risovoy shelukhi. ¹ 96118801; zayavl. 23.09.1996; opubl. 10.03.1998 [Russian Patent no. 2106304. Method of Obtaining Water-Soluble Silicates of Rice Straw Ashes. No. 96118801; appl. 23.09.1996; publ. 10.03.1998]. Patent holder Chemistry Institute of Far Eastern Branch of RAS. Available at: http://www.freepatent.ru/patents/2106304. Date of access: 20.05.2014. (In Russian)
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  9. Vinogradov V.V., Vinogradova E.P. Patent RF ¹ 2191159. MPK C01B33/00. Sposob polucheniya ul'tradispersnogo amorfnogo ili nanokristallicheskogo dioksida kremniya. ¹: 2001113925/12; zayavl. 25.05.2001; opubl. 20.10.2002 [Russian Patent no. ¹ 2191159. MPK C01B33/00. Method of Obtaining Ultradisperse Amorphic or Nanocrystal Silicon Dioxide. No. 2001113925/12; appl. 25.05.2001; publ. 20.10.2002]. Patent Holder N.A. Khachaturov. Available at: http://www.freepatent.ru/patents/2191159. Date of access: 20.05. 2014. (In Russian)
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  12. Zemnukhova L.A., Fedorishcheva G.A., Egorov A.G., Sergienko V.I. Issledovanie usloviy polucheniya, sostava primesey i svoystv amorfnogo dioksida kremniya iz otkhodov proizvodstva risa [Investigation of the Obtaining Conditions, Admixture Composition and Properties of the Amorphous Silicon Dioxide of Rice Production Waste]. Zhurnal prikladnoy khimii [Applied Chemistry Journal]. 2005, vol. 78, no. 2, pp. 324—328. (In Russian)
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THE CONSTRUCTION OF A COMPOSITION BASED ON MAGNESIA BINDER WITH PEAT

Vestnik MGSU 6/2017 Volume 12
  • Lebedeva Natalia Shamilievna - Ivanovo Fire Rescue Academy of State Firefighting Service of Ministry of Russian Federation for Civil Defense, Emergencies and Elimination of Consequences of Natural Disasters (IFRA SFS EMERCOM OF RUSSIA) Doctor of Chemical Sciences, Associate Professor, Professor of the Natural Sciences Department, Ivanovo Fire Rescue Academy of State Firefighting Service of Ministry of Russian Federation for Civil Defense, Emergencies and Elimination of Consequences of Natural Disasters (IFRA SFS EMERCOM OF RUSSIA), 33 Stroiteley prospect, 153040, Ivanovo, Russian Federation.
  • Nedayvodin Evgeniy Gennadievich - Ivanovo Fire Rescue Academy of State Firefighting Service of Ministry of Russian Federation for Civil Defense, Emergencies and Elimination of Consequences of Natural Disasters (IFRA SFS EMERCOM OF RUSSIA) Postgraduate Institute of Development, Ivanovo Fire Rescue Academy of State Firefighting Service of Ministry of Russian Federation for Civil Defense, Emergencies and Elimination of Consequences of Natural Disasters (IFRA SFS EMERCOM OF RUSSIA), 33 Stroiteley prospect, 153040, Ivanovo, Russian Federation.

Pages 642-646

Obtained building material based on magnesia binder with different content of peat (0 to 90 %), on a specially developed technique. As a binder used PMK 87, for mixing mixtures used aqueous solution of magnesium chloride and peat from the Ivanovo region. It were determined such physical and physico-mechanical properties of the investigated material as the compressive strength and the density. The strength characteristics of silicate bricks, ceramic bricks and the investigated material based on magnesia binder and peat was analyzed and compared. It is established that the samples of construction material with content of peat not exceeding 40 wt.% can be attributed to the materials of structural purpose by its compressive strength. Samples of the material with content of the peat 40% have a density 943,75 kg/m3, that provides good heat and sound insulation properties. It is revealed that the solution of the raw material mixture of magnesia binder, peat, the solution of bischofite is optimized to place, and the material gets at least 85% of its strength during 30 days.

DOI: 10.22227/1997-0935.2017.6.642-646

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

Vestnik MGSU 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; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • 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; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • 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; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 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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