One of the most prospective ways to solve the problem of rational using energy resources is the creation of materials for heat insulation of pipeline when they are laid in unheated premises of the building. Effective gas concrete on the basis of liquid glass, modifying additives, crushed and ground broken glass, aluminum powder, sodium hydroxide, and sodium fluorosilicate is proposed to be used as such a material. This heat insulation meets the requirements of fire safety, durability, operation reliability. Its use makes it possible to improve the energy efficiency of pipelines and have a stable ecological and economic effect due to the use of solid domestic waste.

A.A. ZAYTSEVA, engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)
E.I. ZAYTSEVA, Candidate of Sciences (Engineering)
V.F. KOROVYAKOV, Doctor of Sciences (Engineering)

Moscow State University of Civil Engineering (26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)

1. Uhova T.A. Prospects for the development of production and application of cellular concrete. Stroitel’nye Materialy [Construction Materials]. 2005.No 1, pp. 18–21. (In Russian)
2. G.P. Sakharov. Foamed concretes in post-crisis period. Nauchno-prakticheskij Internet-zhurnal «Nauka. Stroitel’stvo. Obrazovanie». 2011. № 1. http://www.nso-journal.ru/public/journals/1/issues/2011/01/8.pdf (date use the site 25.05.2015)
3. Grigorova Ju.A. Recycling of a cullet in production of heat-insulating materials. Sovremennye nauchnye issledovanija i innovacii.2014.No 8. http://web.snauka.ru/issues/2014/08/37026 (date use the site 25.05.2015)
4. Nikulin F.E. Utilization and cleaning of industrial wastes. L.: Sudostroenie. 2004 , 232 p.
5. Zaytseva E.I., Porous insulation material on the basis of cullet. Cand. Diss. (Engineering). Moskva. 1998, 165p. (In Russian)
6. Patent RF 2263085. Syr’evaja smes’ dlja izgotovlenija teploizoljacionnogo materiala [Raw mix for production of heat-insulating material] Gevorkyan V.A., Korovyakov V.F., Dallakyan D.V., Declared 17.07.2003. Published 27.10.2005. (In Russian).

The principles of calculating the direct sound from the soundproofed compartment technological equipment civil and industrial buildings. Shows the features soundproofed compartment as the secondary volume of noise sources affecting the spread of the sound energy emitted by them. The method of calculation of the direct sound from the soundproofed compartment, more accurately takes into account features of the radiation of sound energy housing. The housings in the method are regarded as sources with large uneven their sound radiation surfaces.

A.I. ANTONOV¹, Candidate of Sciences (Engineering)
V.I. LEDENEV¹, Doctor of Sciences (Engineering)
E.O. SOLOMATIN¹, engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)
I.L. SHUBIN², Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

¹ Tambov State Technical University (109 Sovetskaja Street, Tambov, 392000, Russian Federation)
² Scientific and Research Institute of Building Physics of RAACS (21, Lokomotivny Passage, 127238, Moscow, Russian Federation)

1. Gusev V.P., Sidorina A.V. Protection against noise sewage systems in residential and public buildings. Zhilishchnoe stroitel’stvo [Housing Construction]. 2014. No. 11, pp. 12–15. (In Russian).
2. Gusev V.P. From the experience of noise control equipment engineering systems. AVOK: Ventilyatsiya, otoplenie, konditsionirovanie vozdukha, teplosnabzhenie i stroitel’naya teplofizika. 2012. No. 2, pp. 38–45. (In Russian).
3. Kochkin A.A. Soundproofing of vibrodampering elements layered translucent walling. Stroitel’nye Materialy [Construction Materials]. 2012. No. 6, pp. 40. (In Russian).
4. Kochkin A.A. Designing acoustic laminated vibrodampering panels based on gypsum sheets. Vestnik MGSU. 2011. No. 3–1, pp. 93–96. (In Russian).
5. Grebnev P.A., Monich D.V. Investigation of properties of multilayer soundproof enclosures with rigid filler. Zhilishchnoe stroitel’stvo [Housing Construction]. 2012. No. 6, pp. 50–51. (In Russian).
6. Gusev V.P. Increasing the accuracy of calculations of acoustic engineering systems – direct way to optimize their attenuation. Protecting the public from high noise exposure: Proceedings of the III All-Russian Scientific-practical conference with international participation. St. Petersburg. 2014, pp. 692–698. (In Russian).
7. Gusev V.P., Matveeva I.V., Solomatin E.O. Computer modeling of noise from various sources in the urban environment. Zhilishchnoe stroitel’stvo. 2014. No. 8, pp. 25–28. (In Russian).
8. Osipov G.J., Judin E. Ja. Snizenie shuma v zdanijah I zhilyh rajonah [Decrease in noise in buildings and residential areas]. Moscow: Stroizdat. 1987. 558 p.

The characteristic of the duct of the air supply systems, air conditioning and process piping of refrigeration systems as sources of increased noise radiated into the surrounding space are represented. For protection it uses different zvukoizoliruyuschie coating, the effectiveness of which depends on many parameters. Discusses the physical and mathematical model of their standard designs and new experimental data concerning the influence of positive and negative temperature on the efficiency of combined coatings of elastomeric materials.

V.P. GUSEV, Doctor of Sciences (Engineering)(This email address is being protected from spambots. You need JavaScript enabled to view it.)
A.V. SIDORINA, engineer

Research Institute of Building Physics of RAAСS (21, Lokomotivniy Driveway, Moscow, 127238, Russian Federation)

1. Gusev V.P., Ledenev V.I. M.J. Leshko Calculation and design of sound air seply ,conditioning and air heating systems. Reference book edited by I. L. Shubin. M: NIISF RAASN, 2013, 80 p.
2. Gusev, V.P. From the experience of noise control engineering systems equipment. AVOK, 2012. No. 2, pp. 38–42, No. 3, pp. 38–43. (In Russian).
3. Gusev, V.P., Ledenyov V. I. Assessment of noise impact on the environment ventilation equipment installed in outdoor areas. AVOK. 2014. No. 3, pp. 70–74. (In Russian).
4. Gusev V.P. Evaluation of the sound power of equipment in plenums. AVOK. 2009. No. 3, pp. 32–39. (In Russian).
5. Gusev, V.P., Sidorina A.V. The Calculation and design of noise protection transit air ducts of HVAC systems. AVOK. 2013. No. 2, pp. 94–100. (In Russian).
6. Gusev, V.P., Sidorin A.V. Noise Insulation of air ducts of ventilation systems coatings using elastomeric and fibrous materials. Stroitel’nye Materialy [Construction materials]. 2013. No. 6, pp. 37–39.
7. Gusev, V.P., Leshko M.J., Sidorina A.V. Protection from aircraft noise elements of ventilation systems and air conditioning. Proceedings of the conference - IV academic readings “Topical issues of building physics: energy saving, reliability, environmental safety” dedicated to the memory of G.L. Osipov .Moscow, MGSU, July 3–5 2012.
8. Terekhov, A.L., Study and reduction of noise at compressor stations of main gas pipelines. M. “IRC Gazprom”. 2002 305 p.

Problems of the present condition of small reinforced concrete highway bridgeworks as well as disadvantages of existing methods for maintenance and control of bridge crossings are reflected. The description of the monitoring system of conditions of bridgeworks developed by authors, which make it possible, in real scale of time, to conduct measurements and automate the process of data transmission by wireless communication, is presented. The structural block-scheme of the system is also presented.

S.I. EVTUSHENKO, Doctor of Sciences (Engineering), Professor
T.A. KRAKHMAL’NY, Candidate of Sciences (Engineering)
M.P. KRAKHMAL’NAYA, Candidate of Sciences (Engineering)
A.S. EVTUSHENKO, Candidate of Sciences (Engineering)

Platov South Russian State Polytechnic University (Novocherkassk Polytechnic Institute) (132, Prosvescheniya Street, 346428, Novocherkassk, Rostov Region, Russian Federation)

1. Bandurin M.A. Problems of residual life assessment is long maintained water spending constructions. Inzhenernyi vestnik Dona. 2012. No. 3, pp. 29-34. (In Russian).
2. Volosukhin V.A., Krakhmal’nyi T.A., Evtushenko S.I., Krakhmal’naya M.P. Defekty i povrezhdeniya stroitel’nykh konstruktsii mostov na meliorativnykh kanalakh Rostovskoi oblasti [Defects and damage to the building of bridges in the drainage canals of the Rostov region]. Novocherkassk: Yuzhno-Rossiiskii gosudarstvennyi politekhnicheskii universitet imeni M.I. Platova. 2013. 126 p.
3. Mailyan L.R., Skibin G.M., Shutova M.N. Ostatochnyi resurs tipovykh ob”ektov gornorudnoi i ugol’noi promyshlennosti i metody ego opredeleniya [Residual resource objects typical mining and coal industry and methods of its determination]. Rostov-na-Donu: Rostovskii gosudarstvennyi stroitel’nyi universitet. 2010. 150 p.
4. Volosukhin V.A., Bandurin M.A. Features of the application of simulation of emergency bridge crossings through carrying water during operational monitoring. Izvestiya vysshikh uchebnykh zavedenii. Severo-Kavkazskii region. Seriya: Tekhnicheskie nauki. 2012. No. 5, pp. 82-86. (In Russian).
5. Patent RF 2448225. Sistema monitoringa sostoyaniya treshchin i stykov zdanii i sooruzhenii [The system of monitoring the state of cracks and joints of buildings and structures]. Krakhmal’naya M.P., Krakhmal’nyi T.A., Evtushenko S.I. Declared 01.10.2010. Published 20.04.2012. Bulletin No. 4. (In Russian).
6. Patent RF 2344369. Datchik ugla naklona odnoploskostnoi [Inclination sensor coplanar]. Zotov M.V., Tishchenko S.G., Evtushenko S.I., Rudov N.V. Declared 09.10.2006. Published 20.01.2009. (In Russian).

Normative methods for the technical diagnostic of building, including heat insulating, structures of underground heating mains are considered. The thermal non-destructive method for diagnostics of trenchless heat lines is proposed, an algorithm of implementing the proposed method in practice is given. Ways of the solution of problems at the main stages of control conducting, such as the measurement of factual temperatures of soil surface (covering) over the laying with the use of thermal imaging equipment and the mathematical simulation of temperature fields of heating mains for different conditions of building structures and technological regimes, are described. The mathematical description of the heat transfer process in the «heating line – soil» system is given. The comparison of factual thermograms, obtained as a result of experimental approbation of the proposed method, with the results of numerical simulation is made.

S.A. TIHOMIROV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
A.L.TIHOMIROV, Candidate of Sciences (Engineering)
S.G.SHEINA, Doctor of Sciences (Engineering)

Rostov State Building University (162,Socialisticheskaya Street, Rostov-on- Don, 344022, Russian Federation )

1. Kovalevsky V.B. Energy Efficiency ductless heat networks strip. Novosti teplosnabzheniya.2014. No. 5, pp. 45–48. (In Russian)
2. Isaev V.V., Rondelle, A.N., Shapovalov N.N. The experience of instrumental diagnostics of underground pipelines of thermal networks to assess their technical condition in determining measures to ensure the reliability of heat supply systems. Novosti teplosnabzheniya.2013. No. 4, pp. 31–34. (In Russian)
3. Pinchasov S.A. Methods of diagnostics of thermal networks. Novosti teplosnabzheniya. 2014. No. 5, pp. 38-44. (In Russian)
4. Lukyanenko V.A. The acoustic emission method in the diagnosis of heat pipelines. Novosti teplosnabzheniya. 2014. No. 3, pp. 32–35. (In Russian)
5. Charles K.R., Baibakov S.A. the Use of fiber-optic techniques for condition monitoring of underground thermal systems. Novosti teplosnabzheniya. 2012. No. 8, pp. 23–28. . (In Russian)
6. Osnovy sovremennoi stroitel’noi termografii [The foundations of modern building thermography]. Under the General editorship of D. I. L. Shubin. M.: NIISF RAASN, 2012. 176 p.
7. Fedulov M.R. About replacing hydraulic tests of thermal networks by NDT methods. Novosti teplosnabzheniya. 2013. No. 11, pp. 32–35. (In Russian)
8. Samoilov E.V. Place acoustic tomography in a comprehensive approach to the technical diagnostics of pipelines of thermal networks. Novosti teplosnabzheniya. 2013. No. 10, pp. 46–48.

Some problems of the experimental determination of moisture content of enclosing structures materials by non-destructive dielkometric method both in the process of building products fabrication and in the process of operation of buildings with the help of capacitance sensors of a surface type are considered. The scheme of test conducting with a moisture meter of IVTP-12-1 type is presented. One of the ways to minimize measurements errors, which depend on the surface quality of the controlled structure, is shown.

V.S.ROYFE, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Research Institute of Building Physics of RAAСS (21, Lokomotivniy Driveway, Moscow, 127238, Russian Federation)

1. Gagarin V.G., Pastushkov P.P. Quantitative assessment of energy efficiency of energy saving measures. Stroitel’nye Materialy [Construction Materials]. 2013. No. 6, pp. 7–9. (In Russian).
2. Rojfe V.S. Pilot studies of a moist condition of construction de-signs. Vestnik MGSU. 2011. Vol. 3. No. 2, pp. 104–108. (In Russian).
3. Pastushkov P.P., Lushin K.I., Pavlenko N.V. Absence of problem of condensate formation on the inner surface of walls with fastened heat insulation. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2014. No. 6, pp. 42–44. (In Russian).
4. Patent RF № 82311 Komplekt ekspress-izmeritelya vlazhnosti i teploprovodnosti tverdykh materialov [Package express moisture meter and the thermal conductivity of solid materials] / Royfe V.S. Declared 05.04.2011. Published 16.07.2012.

Equilibrium sorption humidity of building materials largely determines the progress of processes of heat- and moisture transfer through external enclosing structures of buildings and, consequently, the thermal resistance of these structures under the real conditions of operation. Therefore, when calculating the thermal resistance of structures, the information about the equilibrium sorption humidity of structures and its components at positive and negative temperatures is needed. The study of the sorption humidity process is conducted on the example of cellular concretes. The humidification of cellular concretes with vaporous moisture at temperatures from +35°C up to -10°C takes place mainly due to the phenomenon of polymolecular adsorption. The phenomenon of capillary condensation plays a prominent role in this process only at the values of relative air humidity close to 1 (100%).

I.Ya. KISELEV, Doctor of Sciences (ikiselyov@ bk.ru)

Research Institute of Building Physics of RAAСS (21, Lokomotivniy Driveway, Moscow, 127238, Russian Federation)

1. Gagarin V.G., Kozlov V.V. Theoretical preconditions for calculation of reduced resistance to heat transfer of enclosing structures. Stroitel’nye Materialy [Construction Materials]. 2010. No. 12, pp. 4–12. (In Russian).
2. Gagarin V.G., Kozlov V.V. Prospects for increasing the energy efficiency of residential buildings in Russia. Vestnik MGSU. 2011. No. 3. Vol. 1, pp. 192–200. (In Russian).
3. Umnyakova N.P. Sorption of water steam of mineral wool heat insulation in operating ventilated facades. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2013. No. 3, pp. 50–52. (In Russian).
4. Umnyakova N.P., Butovskiy I.N., Chebotarev A.G. Development of the regulation methods of heat shield of energy efficient buildings. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2014. No. 7, pp. 19–23. (In Russian).
5. Kiselyov I.Ya. The method of calculation of the equilibrium sorption humidity of building materials for positive and negative temperatures. Academia. Arhitektura i stroitelstvo. 2011. No. 3, pp. 101–104. (In Russian).
6. Brunauer C. Adsorbcia parov i gazov. T1. Fizicheskaia adsorbcia [Adsorption of gases and vapors. Part. 1. Physical adsorption]. Moscow: GIIL. 1948. 784 p.
7. Greg S., Sing L. Adsorbciya, udelnaya poverchnoct, poristost [Adsorption specific surface area, porosity]. Moscow: MIR. 1984. 527 p.
8. Gagarin V.G. About modification of t-method for the determination of the specific surface area of macro and mesoporous adsorbents. Zhurnal fizicheskoi khimii. 1985. Vol. 59. No. 5, pp. 1838–1839. (In Russian).

When arranging one-layer enclosing structures made of efficient small-piece articles, it is necessary to use «warm» mortars. Existing lightweight mortars have insufficient grade strength and not always ensure the homogeneity of the enclosing structure due to the relatively high average density. The efficient reliving filler for such mortars is hollow ceramic micro-spheres. The development of lightweight masonry mortars with hollow ceramic microspheres is presented. Optimal compositions have been developed, their main properties have been determined. The influence of the percentage of hollow ceramic micro-spheres in the mix composition on the micro-structure of masonry mortar, its physical-mechanical and technological properties has been studied. Lightweight masonry mortars with hollow ceramic micro-spheres, which make it possible to improve the energy efficiency of enclosing structures, have been obtained.

V.S. SEMENOV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
T.A. ROZOVSKAYA, Engineer

Moscow State University of Civil Engineering (26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)

1. Matrosov Yu.A. Energosberezhenie v zdaniyakh. Problema i puti ee resheniya [Energy saving in buildings. The problem and its solutions]. Moscow: NIISF. 2008. 496 p.
2. Vylegzhanin V.P., Pinsker V.A. The efficiency of walling cellular concrete materials. In book: Yacheistye betony v stroitel'stve [Cellular concretes in construction]. Saint-Petersburg: OOO «Stroi-beton». 2008, pp. 35–37.
3. Livchak V.I. ANo.ther argument in favor of increasing thermal performance of buildings. Energosberezhenie. 2012. No. 6, pp. 14–20. (In Russian).
4. Bakunin E.I. Analysis methods of energy conservation and energy efficiency of residential buildings. Izvestiya TulGU. Nauki o Zemle. 2011. No. 1, pp. 41–46. (In Russian).
5. Ovsyannikov S.N., Vyazova T.O. Heat characteristics of exterior wall constructions with heat-conducting inclusions. Stroitel'nye Materialy [Construction Materials]. 2013. No. 6, pp. 24–27. (In Russian).
6. Sheina S.G., Minenko A.N. Analysis and calculation of «cold bridges» in order to increase the energy efficiency of residential buildings. Inzhenernyi vestnik Dona. 2012. No. 4–1, pp. 131. (In Russian).
7. Gagarin V.G., Kozlov V.V. Prospects for increasing the energy efficiency of residential buildings in Russia. Vestnik MGSU. 2011. No. 3(1), pp. 192–200. (In Russian).
8. Gorshkov A.S., Gladkikh A.A. Influence of masonry mortar joints on the parameters of heat engineering homogeneity walls of aerated concrete. Inzhenerno-stroitel'nyi zhurnal. 2010. No. 3, pp. 39–42. (In Russian).
9. Sirazin M.G. Warm ceramic - a promising material for housing construction in Russia. Stroitel'nye Materialy [Construction Materials]. 2006. No. 4, pp. 18–19. (In Russian).
10. Gudkov Yu.V., Akhundov A.A. Building materials based on cellular concrete. Stroitel'nye Materialy [Construction Materials]. 2014. No. 1, pp. 9–10. (In Russian).
11. Katsynel' R.B. Cellular concrete and energy-efficient construction. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2013. No. 4, pp. 24–26. (In Russian).
12. Tikhonov Yu.M., Kolomiets V.I. Selection of compositions, properties and applications of light dry building mixtures based on expanded perlite and vermiculite. Vestnik grazhdanskikh inzhenerov. 2006. No. 3, pp. 83–88. (In Russian).
13. Udodov S.A., Chernykh V.F. Plaster compositions for cellular concrete. Stroitel'nye Materialy [Construction Materials]. 2006. No. 6, pp. 31–33. (In Russian).
14. Semenov V.S., Rozovskaya T.A. Dry masonry mixture with hollow ceramic microspheres. Nauchnoe obozrenie. 2013. No. 9, pp. 195–199. (In Russian).
15. Oreshkin D.V., Belyaev K.V., Semenov V.S. High quality construction and grouting mortars with hollow glass microspheres. Promyshlennoe i grazhdanskoe stroitel'stvo. 2010. No. 10, pp. 56–58. (In Russian).
16. Semenov V.S., Oreshkin D.V., Rozovskaya T.A. The properties of lightweight mortars with hollow glass microspheres and antifreeze additives. Promyshlennoe i grazhdanskoe stroitel'stvo. 2013. No. 3, pp. 9–11. (In Russian).
17. Klochkov A.V., Pavlenko N.V., Strokova V.V., Belentsov Yu.A. On the question about the use of hollow glass microspheres for thermal-structural masonry mortars. Vestnik BGTU im. V.G. Shukhova. 2012. No. 3, pp. 64–66. (In Russian).
18. Oreshkin D.V., Belyaev K.V., Semenov V.S. Thermophysical properties, porosity and vapour permeability of light-weight cement mortars. Stroitel'nye Materialy [Construction Materials]. 2010. No. 8, pp. 51–54. (In Russian).
19. Inozemtsev A.C., Korolev E.V. Hollow microspheres - an effective filler for high-strength lightweight concrete. Promyshlennoe i grazhdanskoe stroitel'stvo. 2013. No. 10, pp. 80–83. (In Russian).
20. Korolev E.V., Inozemtcev A.S. Preparation and research of the high-strength lightweight concrete based on hollow microspheres. Advanced Materials Research. 2013. No. 746, pp. 285–288.
21. Blanco F., Garcı́a P., Mateos P., Ayala J. Characteristics and properties of lightweight concrete manufactured with cenospheres. Cement and Concrete Research. 2012. No. 30, pp. 1715-1722.
22. Danilin L.D., Drozhzhin V.S., Kuvaev M.D., Kulikov S.A., Maksimova N.V., Malinov V.I., Pikulin I.V., Redyushev S.A., Khovrin A.N. Hollow microspheres of evils ash – a multifunctional filler composite materials. Tsement i ego primenenie. 2012. No. 4, pp. 100–105. (In Russian).
23. Teryaeva T.N., Kostenko O.V., Ismagilov Z.R., Shikina N.V., Rudina N.A., Antipova V.A. Physico-chemical properties of aluminosilicate hollow microspheres. Vestnik Kuzbasskogo gosudarstvennogo tekhnicheskogo universiteta. 2013. No. 5, pp. 86–90. (In Russian).
24. Sapelin A.N. The sorption properties of wall materials with microspheres. Academia. Arkhitektura i stroitel'stvo. 2013. No. 3, pp. 101–103. (In Russian).

Energy efficient multi-layer enclosing structures, which make it possible to ensure the required level of heat protection of buildings and reliability of external walls and ceilings, are used widely in the practice of modern construction. Among known structural concepts of enclosing structures it is possible to select walls, ceilings, and coverings manufactured with the use of durable heat insulation concretes. Such enclosing structures can be made in the form of curtain or self-bearing wall panels, multi-layer blocks masonry, monolithic external walls, ceiling slabs and coverings. A feature of some these structures is the availability of a monolithic connection between structural and heat insulation layers provided at manufacture of the structure during the single technological cycle. To improve strength characteristics of the contact zone of layers of the structure, a number of technical solutions, providing the strengthening of the layer contact zone by introducing reinforcing glass meshes, disperse reinforcement with steel or glass fiber, introducing the additional filler into the contact layer during the process of layer-by-layer fabrication of structures at the factory, have been developed.

O.A. KOROL, Engineer, (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Moscow State University of Civil Engineering (26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)

1. Davidyuk A.A. Assessment of influence of heat conductivity inclusions on reduced resistance to heat transfer of external multilayer walls on the basis of light concretes with vitreous fillers. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2014. No. 7, pp. 24–27. (In Russian).
2. Ibragimov A.M., Fedosov S.V., Gnedina L.Yu. Problems of three-layer enclosing structures. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2012. No. 7, pp. 9–12. (In Russian).
3. Ibragimov A.M., Lavrinovich S.S. Physical-mathematical statement of a problem of non-stationary heat transfer through multilayer enclosing structure in the course of its heat-moisture treatment. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2015. No. 2, pp. 31–33. (In Russian).
4. Korol’ E.A., Mostovoi D.I. Innovative technologies and design solutions for the roofing works. Estestvennye i tekhnicheskie nauki. 2014. No. 11–12(78), pp. 404–406. (In Russian).
5. Korol’ E.A., Pugach E.M., Khar’kin Yu.A. Influence of manufacturing factors on the formation of layer connection in the multilayer exterior wall. Vestnik MGSU. 2014. No. 3, pp. 67–75. (In Russian).
6. Korol’ E.A., Khar’kin Yu.A. Tekhnologiya vozvedeniya mnogosloinykh naruzhnykh sten s teploizolyatsionnym sloem iz betona nizkoi teploprovodnosti [Construction technology of multilayer external walls with heat-insulating layer made of low heat conductivity concrete]. Moscow: NTO PMU. 2014. 126 p. (In Russian).
7. Umnyakova N.P. Durability of three-layered walls with brick facing that provides high thermal protection. Vestnik MGSU. 2013. No. 1, pp. 94–100. (In Russian).
8. Umnyakova N.P., Butovskii I.N., Chebotarev A.G. Development of the regulation methods of heat shield of energy efficient buildings. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2014. No. 7, pp. 19–23. (In Russian).
9. Korol’ E.A., Khar’kin Yu.A. Construction technology of multilayer monolithic external walls with heat-insulating layer made of low heat conductivity concrete. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2014. No. 7, pp. 32–35. (In Russian).
10. Patent RF 23000609. Sposob izgotovleniya mnogosloinogo stroitel’nogo bloka [Manufacturing method of a multi-layer construction block]. Korol’ E.A., Slesarev M.Yu., Telichenko V.I. Declared 15.12.2005. Published 10.06.2007. Bulletin No. 16. (In Russian).
11. Patent RF 2307902. Sposob izgotovleniya mnogosloinoi stroitel’noi paneli [Manufacturing method of a multi-layer construction panel]. Korol’ E.A., Nikolaev A.E. Declared 15.12.2005. Published 10.10.2007. Bulletin No. 28. (In Russian).
12. Patent RF 2307903. Sposob izgotovleniya mnogosloinogo stroitel’nogo izdeliya [Manufacturing method of a multi-layer construction product]. Korol’ E.A., Slesarev M.Yu., Telichenko V.I. Declared 15.12.2005. Published 10.10.2007. Bulletin No. 28. (In Russian).
13. Patent RF 2430833. Sposob izgotovleniya mnogosloinykh stroitel’nykh izdelii [Manufacturing method of a multi-layer construction products]. Korol’ E.A., Zenkin V.A., Pugach E.M., Khar’kin Yu.A. Declared 15.03.2010. Published 10.10.2011. Bulletin No. 28. (In Russian).
14. Patent RF 2434742. Sposob izgotovleniya elementov mnogosloinykh ograzhdayushchikh konstruktsii [Manufacturing method of multi-layer enclosing structures components]. Korol’ E.A., Pugach E.M., Khar’kin Yu.A., Zenkin V.A., Bykov E.N. Declared 25.05.2010. Published 27.11.2011. Bulletin No. 33. (In Russian).
15. Patent RF 2440892. Sposob izgotovleniya elementov mnogosloinykh ograzhdayushchikh konstruktsii [Manufacturing method of multi-layer enclosing structures components]. Korol’ E.A., Pugach E.M., Khar’kin Yu.A., Zenkin V.A., Bykov E.N. Declared 18.08.2010. Published 27.01.2012. Bulletin No. 3. (In Russian).

Results of experiments on replacement of a part of the sand filler with an equivalent volume of damping additives with the purpose to study the changes in concrete properties caused under the action of dynamic loads are presented. Foam polystyrene, foam glass, crushed brick, and claydite are used as additives. Sample-cubes were subjected to the impact of different dynamic loads, after that their strength were measured and compared with results obtained for the control sample. The impact strength of samples of the compositions obtained was also tested at the vertical dynamic impact machine. On the basis of experimental studies, the possibility of increasing the impact strength of concrete due to introducing damping components in the composition of concrete mix is shown. At that, there was some reduction in other properties of concretes obtained. The optimum additive and its amount for application in concrete mixes subjected to dynamic loads have been determined.

M.V. KOROBKOVA, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Saint-Petersburg State University of Architecture and Civil Engineering (4, 2nd Krasnoarmeiskaya Street, St. Petersburg, 190005, Russian Federation)

1. Adam G. Bowland, Richard E. Weyers, Finley A. Charney, Norman E. Dowling, Thomas M. Murray, Andrei Ramniceanu. Effect of vibration amplitude on concrete with damping additives. Materials Journal. 2012. Vol. 109. No. 3, pp. 371–378.
2. Yeh J. Advanced Civil, Urban and Environmental Engineering. Southampton: WIT Press, 2014. 813 p.
3. Lotoshnikova E.O. Physical and chemical researches micro and macrostructures of rigid pressing concrete with the damping additives of cindery microspheres. Electronic scientific magazine Inzhenernyi vestnik Dona. 2013. No.  4. http://ivdon.ru/magazine/archive/n4y2013/2092. (date of access 14.02.2014).
4. Tkachenko G.A., Erofeev V.P., Erofeev A.P. Concretes of higher crack resistance for production of road articles. Stroitel’nye Materialy [Construction Materials]. 2010. No. 10. pp. 57–59. (In Russian).
5. Damdinova D.R., Pavlov V.E., Alekseev E.M. Foam glass as the base for facing materials with controlled porous structure. Stroitel’nye Materialy [Construction Materials]. 2012. No. 1, pp. 44–46. (In Russian).
6. Lukutcova N.P., Pykin A.A., Chudakova O.A. Modifying of fine-grained concrete by micro and nanodimensional particles of a shungit and dioxide of the titan. Vestnik BGTU im. V.G. Shukhova. 2010. No. 2, pp. 67–70. (In Russian).
7. Arulraj G.P., Adin A., Kannan T.S. Granite Powder Concrete. IRACST – Engineering Science and Technology: An International Journal (ESTIJ). 2013. Vol. 3. No. 1, pp. 193–199.
8. Fennis S.A.A.M., Walraven J.C., Uijl J.A. Compaction-interaction packing model: regarding the effect of fillers in concrete mixture design. Materials and Structures. 2013. Vol. 46. Iss. 3, pp. 463–478.
9. Babkov V.V., Mohov V.N., Davletshin M.B., Parfyonov A.V., et all. Modified concrete with high impact strength. Stroitel’nye Materialy [Construction Materials]. 2002. No. 5, pp. 24–27. (In Russian).
10. Bespaev A.A., Dzharylsasynov S.Sh. Strength and deformability of high-strength cement concrete under dynamic loading. International Scientific Conference «Mechanics and construction of transport buildings». Almaty. 2010, pp. 229–232. (In Russian).
11. Bragov A.M., Lomunov A.K., Konstantinov A.Y., Lamzin D.A. Research of mechanical properties of fine-grained concrete under dynamic loading. Privolzhskij nauchnyj zhurnal. 2014. No. 4, pp. 8–17. (In Russian).
12. Balandin V., Kochetkov A., Krylov S., Sadyrin A., Feldgun V. Experimentally and theoretically investigating the processes of impact and penetration of bodies into concrete obstacles. Proceedings Fib Symposium. Engineering a Concrete Future: Technology, Modeling and Construction. Tel-Aviv. 22–24 April. 2013, pp. 601–604.
13. Pantileenko V.N. Povyshenie dolgovechnosti betona konstruktsii dlya neftegazopromyslovogo stroitel’stva: Monografiya [Increase of durability of concrete for oil and gas construction: Monograph]. Uhta: UGTU. 2001. 91 p.

To reduce material and energy consumption of concrete products manufacturing, it is necessary to develop the formulation and introduce technologies of production of multi-component fine concretes with the use of industrial waste. The introduction of steelmaking slag and micro-silica in cement mix makes it possible to optimize the granulometric composition of fillers, and, in case of using the plasticizing additive, to improve the structure of composite material. Results of the experimental determination of compressive strength, water absorption, density of the samples of the cement composite material depending on the percentages of components are presented. In case of increasing the content of steelmaking slag in the composition of a fine filler by 0–30%, the increase in the strength of samples by 22% is observed. The introduction of 20% of micro-silica and addition of the superplasticizer C-3 to 3% by weight of the binder positively influence on the strength characteristics. Formulations and strength characteristics of fine concrete compositions suitable for the manufacture of wall blocks are presented.

V.A. EZERSKIY¹, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
N.V. KUZNETSOVA², Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
A.I. DUBROVIN², Student

¹ Bialystok University of Technology (95а, Wiejska Street, Bialystok, 15-351, Poland)
² Tambov State Technical University (106, Sovetskaya Street, Tambov, 392000, Russian Federation)

1. Loschenko A.L. Strategy of development of building materials industry and industrial housing construction for the period till 2020 as a basis of balanced development of the construction industry. Stroitel’nye Materialy [Construction Materials]. 2012. No. 10, pp. 46–47. (In Russian).
2. Il’ichev V.A., Karpenko N.I., Yarmakovsky V.N. About development of building materials production on the basis of secondary industrial products (SIPs). Stroitel’nye Materialy [Construction Materials]. 2011. No. 4, pp. 36–42. (In Russian).
3. Gorshkov V.S. Alexandrov S.E., Ivashchenko S.I., Gorshkov I.V. Kompleksnaya pererabotka i ispol’zovanie metallurgicheskikh shlakov v stroitel’stve [Complex processing and use of metallurgical slag in construction]. Ed. by V.S. Gorshkov. Moscow: Stroyizdat. 1985. 272 p.
4. Veshnjakova L.A., Frolova M.A., Eisenstadt A.M., Lesovik V.S., Mikhailov O.N., Macha T.A. Evaluation of energetic state of raw material for production of building materials. Stroitel’nye Materialy [Construction Materials]. 2012. No. 10. pp. 56–55. (In Russian).
5. Korneev E.V. Study of steelmaking slag for the purpose of secondary use. Stroitel’nye Materialy [Construction Materials]. 2012. No. 8, pp. 62–63. (In Russian).
6. Koshkin A.G., Korovkin M.O., Urazova A.A., Eroshkina N.A. Study the effectiveness of supplements based on microsilica. Sovremennye nauchnye issledovaniya i innovatsii: scientific Internet-journal. 2014. No. 12 http://web.snauka.ru/issues/2014/12/42177 (date of access 20.04.2015). (In Russian).
7. Korovkin M.O., Kalashnikov V.I., Eroshkina N.A. Effektivnost’ superplastifikatorov i metodologiya ee otsenki [The effectiveness of superplasticizers and methodology to assess it]. Penza: Publishing House of the VPO «PGASA». 2012. 144 p.
8. Kalashnikov V.I. Gulyaev E.V., Valiev D.M. Influence of the type of super- and hyperplasticizers on the reotechnological properties of cement-mineral suspensions, powder mixed concrete and mechanical properties of concrete. Izvestiya vysshikh uchebnykh zavedeniy. Stroitel’stvo. 2011. No. 12, pp. 40–45. (In Russian).
9. Kalashnikov V.I. Gulyaev E.V. Influence of the type and dosage of super-plasticizer on the properties of cement slurries reotehnologicheskie, baa-ton mixtures and powder-activated concrete. Tsement i ego primenenie. 2012. No. 2, pp. 66–72. (In Russian).
10. Gryzlov V.S. Formirovanie struktury shlakobetonov [Cinderblock structure formation]: Monograph. Cherepovets: CSU. 2011. 274 p.

A method of manufacturing plates from exfoliated vermiculite and liquid sodium glass, when thermal porization of mixture in a closed volume is offered. As a result of the implementation of this method in the product matrix of sodium silicate foam is formed by ligaments, internal particles of exfoliated vermiculite. Products obtained by the developed technology is significantly lighter and stronger, and the manufacturing process shorter.

V.A.LOTOV, Doctor of Sciences (Engineering)
V.A. KUTUGIN, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Tomsk Polytechnic University (30,av. Lenin, Tomsk, 634050, Russian Federation)

1. Akhtyamov R.Ya. Vermiculite – raw materials for the production of refractory heat-insulating materials. Ogneupory i tekhnicheskaya keramika. 2009. No. 1–2, pp. 58–64. (In Russian).
2. Patent RF 2169717. Sostav syr’evoi smesi i sposob izgotovleniya ognezashchitnogo konstruktsionno-otdelochnogo materiala [The composition of feed mixture and method of making fire-retardant constructionfinishing material]. Gorshkov N.I., Katkova E.N., Yanko E.A. Declared 03.05.2000 Published 27.06.2001 (In Russian).
3. Patent RF 2126776. Sostav syr’evoi smesi i sposob izgotovleniya teploizolyatsionnykh plit [The composition of feed mixture and a method for manufacturing insulation boards]. Brzhezanskii V.O., Molokov V.F., Pavshenko Yu.N. Declared 16.07.1998. Published 27.02.1999 (In Russian).
4. Lotov V.A., Kutugin V.A. Formation of a porous structure of foam silicates based on liquid-glass compositioins. Steklo i keramika. 2008. No. 1, pp. 6–10. (In Russian).
5. Popov N.A. Proizvodstvo i primenenie vermikulita [Production and use of vermiculite] Moscow: Stroiizdat. 1964. 152 p.
6. Lotov V.A. The use of aqueous solutions of sodium silicate in extinguishing fires. Steklo i keramika. 2011. No. 7, pp. 32–34. (In Russian).
7. Kutugin, V., Lotov, V., Pautova, Y., Reshetova, A. Perspective technologies for production of thermal insulating materials with hard cellular structure. Proceedings 7th International Forum on Strategic Technology. Tomsk. 2012. Vol. 1, pp. 244–247. (In Russian).
8. Patent RF 2520280. Sposob polucheniya vspenennogo materiala i shikhta dlya ego izgotovleniya [A method of producing foamed material and mixture for its manufacturing]. Lotov V.A., Kutugin V.A., Declared 24.01.2013, Published 20.06.2014. Bulletin No. 17. (In Russain).